Designation: A484/A484M − 12

Standard Specification for

General Requirements for Stainless Steel Bars, Billets, and
Forgings1
This standard is issued under the fixed designation A484/A484M; the number immediately following the designation indicates the year
of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval.
A superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.

1. Scope* 1.7 Unless the order specifies an “M” designation, the

2
1.1 This specification covers general requirements that material shall be furnished to inch-pound units.
shall apply to wrought stainless steel bars, shapes, forgings, 2. Referenced Documents
and billets or other semi-finished material (except wire) for
forging, under the latest revision of each of the following 2.1 ASTM Standards:3
ASTM specifications: A276, A314, A458, A473, A477, A479/ A262 Practices for Detecting Susceptibility to Intergranular
A479M, A564/A564M, A565/A565M, A582/A582M, A638/ Attack in Austenitic Stainless Steels
A638M, A705/A705M, and A831/A831M. A276 Specification for Stainless Steel Bars and Shapes
A314 Specification for Stainless Steel Billets and Bars for
1.2 In the case of conflict between a requirement of a Forging
product specification and a requirement of this specification, A370 Test Methods and Definitions for Mechanical Testing
the product specification shall prevail. In the case of conflict of Steel Products
between a requirement of the product specification or a A458 Specification for Hot-Worked, Hot-Cold-Worked, and
requirement of this specification and a more stringent require- Cold-Worked Alloy Steel Bars for High Strength at
ment of the purchase order, the purchase order shall prevail. Elevated Temperatures (Withdrawn 1988)4
The purchase order requirements shall not take precedence if A473 Specification for Stainless Steel Forgings
they, in any way, violate the requirements of the product A477 Specification for Hot-Worked, Hot-Cold Worked and
specification or this specification; for example, by waiving a Cold-Worked Alloy Steel Forgings and Forging Billets for

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test requirement or by making a test requirement less stringent. High Strength at Elevated Temperatures (Withdrawn
1.3 The requirements for introduction of new materials in 1988)4
specifications referencing this specification are given in Annex A479/A479M Specification for Stainless Steel Bars and
A1. Shapes for Use in Boilers and Other Pressure Vessels
1.4 General requirements for flat-rolled stainless steel prod- A480/A480M Specification for General Requirements for
ucts other than bar are covered in Specification A480/A480M. Flat-Rolled Stainless and Heat-Resisting Steel Plate,
Sheet, and Strip
1.5 General requirements for wire products in coils are A555/A555M Specification for General Requirements for
covered in Specification A555/A555M. Stainless Steel Wire and Wire Rods
1.6 The values stated in either SI units or inch-pound units A564/A564M Specification for Hot-Rolled and Cold-
are to be regarded separately as standard. The values stated in Finished Age-Hardening Stainless Steel Bars and Shapes
each system may not be exact equivalents; therefore, each A565/A565M Specification for Martensitic Stainless Steel
system shall be used independently of the other. Combining Bars for High-Temperature Service
values from the two systems may result in non-conformance A582/A582M Specification for Free-Machining Stainless
with the standard. Steel Bars
A638/A638M Specification for Precipitation Hardening Iron
Base Superalloy Bars, Forgings, and Forging Stock for
1
This specification is under the jurisdiction of ASTM Committee A01 on Steel,
Stainless Steel and Related Alloys and is the direct responsibility of Subcommittee
3
A01.17 on Flat-Rolled and Wrought Stainless Steel. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Nov. 1, 2012. Published November 2012. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
approved in 1963. Last previous edition approved in 2011 as A484/A484M – 11. Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/A0484_A0484M-12. the ASTM website.
2 4
For ASME Boiler and Pressure Vessel Code Applications, see related Specifi- The last approved version of this historical standard is referenced on
cation SA-484/SA-484M in Section II of that code. www.astm.org.

*A Summary of Changes section appears at the end of this standard

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 A484/A484M − 12
High-Temperature Service hot working by rolling or forging. Blooms typically have a
A700 Practices for Packaging, Marking, and Loading Meth- cross section area of greater than 36 in.2 (230 cm2) and shape
ods for Steel Products for Shipment that is square or rectangular with width less than twice the
A705/A705M Specification for Age-Hardening Stainless thickness. Rectangular cross sections with width equal to or
Steel Forgings greater than twice the thickness are classified as slabs or sheet
A751 Test Methods, Practices, and Terminology for Chemi- bars.
cal Analysis of Steel Products 3.1.1.4 forgings, n—parts, including bars, billets, semi-
A831/A831M Specification for Austenitic and Martensitic finished products, or complex shapes, produced by hot me-
Stainless Steel Bars, Billets, and Forgings for Liquid chanical working using hammers, presses, or forging ma-
Metal Cooled Reactor Core Components (Withdrawn chines.
2005)4 3.1.1.5 shapes, n—bar having a cross section other than
E112 Test Methods for Determining Average Grain Size circular, rectangular, or hexagonal.
E139 Test Methods for Conducting Creep, Creep-Rupture, 3.1.1.6 slabs or sheet bars—products, typically produced by
and Stress-Rupture Tests of Metallic Materials blooming, slabbing, or sheet bar mills or by continuous casting,
2.2 Federal Standards:5 that are shipped without further hot working to be further
Fed. Std. No. 123 Marking for Shipment (Civil Agencies) processed into plate, sheet, or strip. It is permitted to heat treat,
Fed Std. No. 183 Continuous Marking of Iron and Steel cut to shape, or surface condition a slab or sheet bar.
Products 3.1.2 The terms random lengths, multiple lengths, and dead
2.3 Military Standards:5 or exact lengths are defined as follows:
MIL-STD-129 Marking for Shipment and Storage 3.1.2.1 dead lengths or exact lengths—bars, typically hot-
MIL-STD-163 Preservation of Steel Products for Shipment sheared, hot-sawed, or machine-cut after machine-
(Storage and Overseas Shipment) straightening, meeting the permitted variations in length as
2.4 Other Standard:6 listed in the tolerance tables of this specification.
Primary Metals Bar Code Standard 3.1.2.2 multiple lengths—lengths that are specified as con-
taining a predetermined number of units of length associated
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3. Terminology with production of a particular part, commonly including an

3.1 Definitions of Terms Specific to This Standard: allowance of 1⁄4 in. [6.5 mm] per unit for cutting to insure
3.1.1 Bars, shapes, forgings, billets, or other semi-finished obtaining the required number of pieces.
material used in this specification are defined as follows: 3.1.2.3 random lengths—a length range not less than 24 in.
3.1.1.1 Bars, n—straight lengths that are produced by pro- [1 m]; for example, 10 to 12 ft [3 to 4 m], 14 to 17 ft [4 to 5
cessing that includes hot deformation, such as rolling, forging, m], or 15 to 20 ft [5 to 6 m].
or extrusion. The permitted cross-sections include round, 3.1.3 The terms condition and finish are defined as follows:
rectangular, and complex shapes. Bar shall include shapes with 3.1.3.1 condition—identification of the final step or steps
all dimensions under 5 in. [125 mm]. Bar shall include thermomechanical processing as required to describe the met-
hot-rolled flats with width of 10 in. [250 mm] or less, and with allurgical state of the material as delivered. Examples include
thickness 0.125 in. [3.00 mm] or greater. Bar shall include flats hot-worked; hot-worked and annealed; hot-worked, annealed,
with width of 10 in. [250 mm] or less, and with thickness 0.125 and cold-worked for increased mechanical properties; and
in. [3.00 mm] or greater, cut from strip or plate provided that hot-worked, quenched, and tempered.
the long direction of the cut bar is parallel to the final rolling 3.1.3.2 finish—description of the surface finish and appli-
direction of the strip or plate. cable dimensional tolerances of the product as delivered, most
typically by identification of the process applied to the product,
NOTE 1—All cold-reduced flat material with thickness less than 0.1875
in. [5.00 mm] and width 0.375 in. [9.50 mm] and over is classified as strip.
and identification of the applicable category of product dimen-
sional tolerances. Examples of finishing operations include
3.1.1.2 billets, n—semi-finished products, typically pro- blasting, pickling, rough turning, machine straightening, cen-
duced by rolling, forging, or continuous casting, that require terless grinding, polishing, and light cold drawing for surface
subsequent hot working by rolling, forging, or extrusion. finish but not for increased mechanical properties. See also
Billets typically have a cross-section area of 36 in.2 or less (230 8.1.1 for hot-finished bars and 8.1.3 for cold-finished bars.
cm2) and shape that is square or rectangular with width less
than twice the thickness. Rectangular cross sections with width 4. Ordering Information
equal to or greater than twice the thickness are classified as
slabs or sheet bars. 4.1 It is the responsibility of the purchaser to specify all
3.1.1.3 blooms, n—semi-finished products, typically pro- requirements that are necessary for material ordered under this
duced by rolling or continuous casting, that require subsequent specification. Such requirements to be considered include, but
are not limited to, the following:
4.1.1 Quantity (weight or number of pieces).
5
Available from Standardization Documents Order Desk, DODSSP, Bldg. 4, 4.1.2 Dimensions, including shape or form with diameter or
Section D, 700 Robbins Ave., Philadelphia, PA 19111-5098, http:// width and thickness as applicable, length, and prints or
www.dodssp.daps.mil.
6
Available from Automotive Industry Action Group (AIAG), 26200 Lahser Rd., sketches as applicable.
Suite 200, Southfield, MI 48033, http://www.aiag.org. 4.1.3 Type or UNS designation.

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 A484/A484M − 12
4.1.4 ASTM specification designation and edition year if mums for elements having minimum requirements or ranges
other than the latest edition with minimum requirements, or requiring lower maximums for
4.1.5 Condition. elements having specified maximums, or ranges with maxi-
4.1.6 Finish. mums. The purchaser is not permitted to make chemical
4.1.7 Supplementary Requirements when invoked. requirements less stringent.
4.1.8 Whether bars are to be rolled as bars or cut from strip 6.1.6 Analysis limits shall be established for specific
or plate, when applicable. elements rather than groups of elements, including but not
4.1.9 Preparation for delivery. limited to all others, rare earths, and balance, unless all
4.1.10 Marking requirements. elements in such a group are similar in technical effect and are
4.1.11 Surface preparation, for shapes. associated in typical methods of chemical analysis.
4.1.12 Special requirements. 6.2 Product Analysis—When required, a product analysis
NOTE 2—A typical ordering description is as follows: 5000 lb [2000 shall be determined in accordance with Test Methods,
kg]; 1.000 in. [25 mm] round bar by 10 to 12 ft [3 to 4 m]; Type 304 or Practices, and Terminology A751. The chemical composition
S30400; Specification A479/A479M; annealed, centerless ground; plus thus determined shall conform to the tolerances shown in Table
optional requirements, such as special marking instructions.
1.
5. Materials and Manufacture 6.3 The steel shall not contain an unspecified element for
5.1 The material shall be made by any process. the ordered grade to the extent that the steel conforms to the
requirements of another grade in the referencing product
5.2 The material shall be furnished in one of the conditions
specification, and any of the product specifications within the
detailed in the applicable product specification, for example,
scope of this general requirements specification, for which that
hot-worked; hot-worked and annealed; hot-worked, annealed,
element has a specified minimum.
and cold-worked; or hot-worked, annealed, and heat-treated.
5.3 The material shall be furnished in one of the finishes as 7. Heat Treatment
detailed in Section 8 or further described in the applicable
7.1 The heat treatments shown in this section are to be
product specification, for example, hot-finished or cold-
followed unless otherwise specified in the applicable product
finished.
specification.
6. Chemical Composition 7.2 Austenitic Grades:
6.1 Heat or Cast Analysis—The chemical analysis of each 7.2.1 Except for strain-hardened grades (see 7.2.4), hot-
heat shall be determined in accordance with the applicable rolled grades (see 7.2.5), and UNS N08020 (see 7.2.6), all
materials specification and Test Methods, Practices, and Ter- austenitic stainless steels shall be furnished in the solution
minology A751. annealed condition in accordance with Table 2, with subse-
6.1.1 The analysis of each heat shall be made from a test quent light cold drawing for cold finishing and straightening
sample taken during the pouring of the melt or from the permitted.
in-process product later in the manufacturing flow. 7.2.2 Except as indicated in Table 2, the austenitic grades
6.1.2 The heat analysis shall conform to the chemical shall be annealed, at the option of the manufacturer, by a
requirements for each of the specified elements for the grade separate annealing treatment or by process annealing.
ordered, as listed in the applicable product specification. 7.2.2.1 The separate annealing treatment shall consist of
6.1.3 All commercial metals contain small amounts of heating the material to the minimum annealing temperature for
elements other than those which are specified. It is neither the grade as listed in Table 2, holding for a sufficient time to
practical nor necessary to specify limits for unspecified permit grain boundary carbides to enter into solution, and
elements, whether intentionally added unspecified elements, cooling rapidly enough to prevent unacceptable grain boundary
residual elements, or trace elements, that can be present. The carbide precipitation. Except as indicated in Table 2, austenitic
producer is permitted to analyze for unspecified elements and stainless steels solution annealed by a separate annealing
is permitted to report such analyses. The presence of an treatment shall be capable of meeting the requirements of
unspecified element and the reporting of an analysis for that Practice E of Practices A262. Practice E of Practices A262 is
element shall not be a basis for rejection unless the presence of not required unless specified on the purchase order.
that element cause the loss of a property typically expected for 7.2.2.2 Process annealing shall consist of completing hot
that metal, for the type and quality ordered. working above the minimum annealing temperature required
6.1.4 The purchaser is permitted to require in the purchase for each grade as indicated in Table 2, and cooling rapidly
order a maximum limit for an individual element not specified enough to prevent unacceptable grain boundary carbide pre-
in the product specification. Such a requirement for an element cipitation. Except as indicated in Table 2, austenitic stainless
not listed in the product specification, when acknowledged in steels solution annealed by process annealing shall be capable
the order acceptance, shall be treated as a specified element, of meeting the requirements of Practice E of Practices A262.
with determination of chemical analysis and reporting of that Practice E of Practices A262 is not required unless specified on
analysis. the purchase order.
6.1.5 The purchaser is permitted to make the requirements 7.2.3 For the stabilized grades, Types 321, 321H, 347,
for any element more stringent, that is, require higher mini- 347H, 348, and 348H, the manufacturer is permitted, if
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 A484/A484M − 12
TABLE 1 Product Analysis Tolerances
NOTE 1—This table specifies tolerances over the maximum limits or under the minimum limits of the chemical requirements of the applicable material
specification (see 1.1); it does not apply to heat analysis.
Tolerances over the Tolerances over the
Maximum (Upper Maximum (Upper
Upper Limit of Maximum of Upper Limit or Maximum of
Element Limit) or Under the Element Limit) or Under the
Specified Range, % Specified Range, %
Minimum (Lower Minimum (Lower
Limit) Limit)
Carbon to 0.010, incl 0.002 Cobalt over 0.05 to 0.50, incl 0.01
over 0.010 to 0.030, incl 0.005 over 0.50 to 2.00, incl 0.02
over 0.030 to 0.20, incl 0.01 over 2.00 to 5.00, incl 0.05
over 0.20 to 0.60, incl 0.02 over 5.00 to 10.00, incl 0.10
over 0.60 to 1.20, incl 0.03 over 10.00 to 15.00, incl 0.15
over 15.00 to 22.00, incl 0.20
over 22.00 to 30.00, incl 0.25
Manganese to 1.00, incl 0.03 Columbium + to 1.50, incl 0.05
over 1.00 to 3.00, incl 0.04 tantalum over 1.50 to 5.00, incl 0.10
over 3.00 to 6.00, incl 0.05 over 5.00 0.15
over 6.00 to 10.00, incl 0.06
over 10.00 to 15.00, incl 0.10
over 15.00 to 20.00, incl 0.15
Phosphorus to 0.040, incl 0.005 Tantalum to 0.10, incl 0.02
over 0.040 to 0.20, incl 0.010
Sulfur to 0.040, incl 0.005 Copper to 0.50, incl 0.03
over 0.040 to 0.20, incl 0.010 over 0.50 to 1.00, incl 0.05
over 0.20 to 0.50, incl 0.020 over 1.00 to 3.00, incl 0.10
over 3.00 to 5.00, incl 0.15
over 5.00 to 10.00, incl 0.20
Silicon to 1.00, incl 0.05 Aluminum to 0.15, incl −0.005
over 1.00 to 3.00, incl 0.10 +0.01
over 3.00 to 6.00 incl. 0.15 over 0.15 to 0.50, incl 0.05
over 0.50 to 2.00, incl 0.10
over 2.00 to 5.00, incl 0.20
over 5.00 to 10.00, incl 0.35
Chromium over 4.00 to 10.00, incl 0.10 Nitrogen to 0.02, incl 0.005
over 10.00 to 15.00, incl 0.15 over 0.02 to 0.19, incl 0.01
over 15.00 to 20.00, incl 0.20 over 0.19 to 0.25, incl 0.02
over 20.00 to 30.00, incl 0.25 over 0.25 to 0.35, incl 0.03
over 0.35 to 0.45, incl 0.04
over 0.45 0.05
Nickel to 1.00, incl 0.03 Tungsten to 1.00, incl 0.03
over 1.00 to 5.00, incl 0.07 over 1.00 to 2.00, incl 0.05
over 5.00 to 10.00, incl 0.10 over 2.00 to 5.00, incl 0.07
over 10.00 to 20.00, incl 0.15 over 5.00 to 10.00, incl 0.10
over 20.00 to 30.00, incl 0.20 over 10.00 to 20.00, incl 0.15
over 30.00 to 40.00, incl 0.25
over 40.00 0.30
Molybdenum over 0.20 to 0.60, incl 0.03 Vanadium to 0.50, incl 0.03
over 0.60 to 2.00, incl 0.05 over 0.50 to 1.50, incl 0.05
over 2.00 to 7.00, incl 0.10
over 7.00 to 15.00, incl 0.15
over 15.00 to 30.00, incl 0.20
Titanium to 1.00, incl 0.05 Selenium all 0.03
over 1.00 to 3.00, incl 0.07
over 3.00 0.10

necessary, to use a lower temperature resolution anneal or a hardened condition. This condition is produced by solution
stabilization anneal after a high temperature anneal in order to annealing the product in accordance with 7.2.1, followed by
maximize resistance to intergranular corrosion. strain hardening sufficient to meet the required mechanical
NOTE 3—Solution annealing temperatures above 1950° F [1065° C] properties. The solution annealed and strain hardened material
may impair the resistance to intergranular corrosion after subsequent shall be capable of meeting the intergranular corrosion test
exposure to sensitizing conditions for the stabilized grades. When inter- requirements of Practice E of Practices A262. Practice E of
granular corrosion is of concern, the purchaser should specify Practice E Practices A262 is not required unless specified on the purchase
of Practices A262 (to be conducted on specimens exposed to a sensitizing
treatment). Consideration should be given to the corrosive media before order.
using a stabilization anneal at less than 1800° F [980° C], as such a 7.2.4.1 Individual product specifications are permitted to
treatment may not be fully effective for all media. define particular strain hardened conditions as functions of
7.2.4 Strain-Hardened Austenitic Grades—When a particu- grade, size, and degree of strain hardening.
lar austenitic grade is desired with increased mechanical
properties, the purchaser is permitted to specify a strain
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 A484/A484M − 12
TABLE 2 Annealing Requirements
Permitted AnnealingB
Designation/Type TemperatureA Cooling/Testing Requirements
Separate Process
Austenitic (Chromium-Nickel) (Chromium-Nickel-Manganese)
C
All austenitic grades except as listed below 1900°F [1040°C] x xD
E
All Cr-Ni-Mn grades, 1900°F [1040°C] x xD
302, S30215, S30452, S30600, S30615,
308, S30815, S30880, 309, 309S, 310,
310S, 314, 317, S31725, S31726, S32615,
S38100
E
309Cb, 310Cb, 316Cb, 316Ti, 321, 347, 348 1900°F [1040°C] x
E
304H, 309H, 310H, 316H 1900°F [1040°C] x
321H, 347H, 348H
E
Hot-worked 1925°F [1050°C] x
E
Cold-worked 2000°F [1095°C] x
E
S31254, S32050 2100°F [1150°C] x
E
S31727, S32053 1975° to 2155°F [1080° to x
1180°C]
E
S33228 2050° to 2140°F [1120° to x
1170°C]
E
S34565 2050° to 2140°F [1120° to x
1170°C]
E
S35315 2010°F [1100°C] x
E
N08367 2025°F [1105°C] x
E
N08700 2000°F [1095°C] x
E
N08020 1700°F to 1850°F [930°C to x
1010°C]
E
N08904 2000°F [1095°C] x
Austenitic-Ferritic (Duplex)
E
S32100 1900°F [1040°C] x xF
E
S31260 1870° to 2010°F [1020° to x xF
1100°C]
E
S31803 1900°F [1040°C] x xF
E
S32101 1870°F [1020°C] x xF
E
S32202 1800 to 1975°F [980 to x xF
1080°C]
G
S32205 1900°F [1040°C] x xF
E
S32304 1800°F [980°C] x xF
E
S32506 1870° to 2050°F [1020° to x xF
1120°C]
E
S32550 1900°F [1040°C] x xF
E
S82441 1830°F [1000°C] x xF
E
S32750 1880°F [1025°C] x xF
E
S32760 2010°F [1100°C] x xF
E
S32900 1750° ± 25°F [955°± 15°C] x xF
E
S32906 1830° to 2100°F [1000° to x xF
1150°C]
E
S32950 1850° ± 25°F [1010°± 15°C] x xF
A
Minimum annealing temperature unless otherwise specified.

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B
Permitted annealing procedure, see 7.2.2.
C
Quenched in water or rapidly cooled by other means at a rate sufficient to prevent reprecipitation of carbides, as demonstrable by the capability of passing Practice E
of Practices A262. Performance of the test is not required unless specified in the purchase order.
D
Minimum temperature at which hot rolling is completed shall be 1750°F [1010°C].
E
Quenched in water or rapidly cooled by other means.
F
Minimum temperature at which hot rolling is completed shall be the minimum temperature for separate annealing.
G
Quenched in water.

7.2.5 Hot-Rolled Austenitic Grades—Individual product 7.3.1 The austenitic-ferritic (duplex) grades shall be fur-
specifications are permitted to define requirements for particu- nished in the solution annealed condition in accordance with
lar hot-rolled austenitic grades without annealing. Table 2, with subsequent light cold drawing for cold finishing
7.2.6 Except when strain-hardened (see 7.2.4), UNS and straightening permitted.
N08020 shall be furnished in the stabilized annealed condition 7.3.2 Except as indicated in Table 2, the duplex grades shall
in accordance with Table 2, with subsequent light cold drawing be annealed, at the option of the manufacturer, by a separate
for cold finishing and straightening permitted. annealing treatment or by process annealing.
7.3 Austenitic-Ferritic (Duplex) Grades:

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7.3.2.1 The separate annealing treatment shall consist of centerless grinding, polishing, or other operations commonly
heating the material to the minimum annealing temperature for associated with cold finishing in order to provide improved
the grade as listed in Table 2, holding for a sufficient time to dimensional tolerances or surface condition for the hot-finished
permit dissolution of intermetallic phases, and cooling rapidly bar. The dimensional tolerances applicable to hot-finished bars
enough to prevent unacceptable precipitation of intermetallic are less stringent than those applicable to cold-finished bars.
phases. 8.1.2 Bars Cut from Strip or Plate—Bars cut from flat-rolled
7.3.2.2 Process annealing shall consist of completing hot stainless steel products shall have two surfaces that are pickled
working above the minimum annealing temperature required or descaled, and two cut surfaces, except when the bar is heat
for each grade as indicated in Table 2, and cooling rapidly
treated subsequent to cutting, in which case all surfaces shall
enough to prevent unacceptable precipitation of intermetallic
be descaled or pickled.
phases.
8.1.3 Cold-Finished Bar—Cold-finished bars shall have the
7.4 Ferritic Grades—Ferritic grades shall be annealed to surface finish that results from hot-finished bars being further
meet their respective mechanical testing requirements as processed by additional mechanical operations on the surface
shown in the applicable product specification.
of the bar, including but not limited to light cold drawing,
7.5 Martensitic Grades: burnishing, centerless grinding, and polishing to provide closer
7.5.1 All martensitic grades shall be supplied in either the tolerances and improved surface finish. The dimensional tol-
annealed condition or in the tempered condition as specified by erances applicable to cold-finished bars are more stringent than
the purchaser. Tempered material shall be normalized, or shall those applicable to hot-finished bars.
be liquid quenched from 1700°F [925°C], minimum, followed
8.1.4 Bars and Billets or Other Semi-Finished Material for
by tempering in accordance with 7.5.2, 7.5.3, or 7.5.4.
Reforging—Material intended for reforging shall be delivered
7.5.2 Types 403 and 410 tempered material shall be held at
in the hot-finished condition. It is permitted to condition the
the tempering temperature for at least 1 h/in. (25.4 mm) of
surface by removing surface defects provided that the depth of
cross section as follows:
7.5.2.1 Condition 1—1250°F [675°C] minimum, 1400°F the conditioning does not exceed that which affects the surface
[760°C] maximum. condition or dimensions of the article to be forged from the bar
7.5.2.2 Condition 2—1100°F [595°C] minimum, 1400°F or billet.
[760°C] maximum. 8.1.5 Shapes—Shapes shall be descaled by machining,
7.5.2.3 Condition 3—1050°F [565°C] minimum, 1400°F grinding, blasting, or pickling.
[760°C] maximum. 8.1.5.1 Shapes shall be subject to either Class A or Class C
7.5.3 Types XM-30, 414, and 431 tempered materials shall surface preparation as specified on the purchase order. Class A
be held at 1100°F [595°C], minimum for at least 1 h/in. [25 consists of grinding for the removal of imperfections of a
mm] of cross section. Maximum tempering temperature shall hazardous nature, such as fins, tears, and jagged edges,
be 1400°F [760°C]. provided the underweight tolerance is not exceeded and the
7.5.4 S41500 shall be heated to 1750°F [955°C] minimum, maximum depth of grinding at any one point does not exceed
air cooled to 200°F [95°C] or lower prior to any optional 10 % of the thickness of the section. Class C consists of
intermediate temper and prior to the final temper. The final grinding for the removal of all visible surface imperfections,
temper shall be between 1050°F [565°C] and 1150°F [620°C]. provided that the underweight tolerance is not exceeded and
7.5.5 When the purchaser elects to perform the hardening the maximum depth of grinding at any point does not exceed
and tempering heat treatment, martensitic materials shall be 10 % of the thickness of the section.
supplied by the manufacturer in the annealed condition (see
8.1.6 Forgings—Forgings shall be descaled by machining,
7.5.1). In this case the purchaser shall be responsible to apply
blasting, or pickling. The selection of the descaling methods
the proper heat treatment and to conduct the tests deemed
shall be at the option of the producer unless a particular
necessary to assure that the required properties are obtained.
descaling method is specified in the purchase order. --`,`,`,``,,,`,,,,````,``,````,`-`-`,,`,,`,`,,`---

8. Finish
9. Dimensions, Mass, and Permissible Variations
8.1 The following types of finishes are permitted, as appli-
cable to the product ordered: 9.1 Unless otherwise specified on the purchase order, the
8.1.1 Hot-Finished Bars—Hot-finished bars shall have the material shall conform to the permitted variations in dimen-
surface finish that results from hot processing, with or without sions as specified in the following:
certain additional surface modification. Hot-finished bars are 9.1.1 Bars—Tables 3-12.
commonly produced by hot rolling, forging, pressing,
9.1.2 Shapes—Tables 13-19 and Figs. 1 and 2.
extruding, or similar hot working procedures applied to ingots,
blooms, or billets. The resulting products are typically subject 9.1.3 Forgings—As specified in the purchase order, or in
to various additional operations affecting the surface of the prints or sketches accompanying the purchase order.
bars, including but not limited to one or more of the following: 9.1.4 Billets or Other Semi-Finished Material for
annealing or other heat treatment; cleaning by blasting, Reforging—Billets and other semi-finished material shall con-
pickling, or other descaling methods; rough turning; and form to the shape and dimensions specified by the purchaser
machine straightening. The producer is permitted to use within a permitted variation of 65 %.

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TABLE 3 Permitted Variations in Size of Hot-Finished Round, Turned,A and Square Bars
Permitted Variations from Specified Size,
in. [mm] Out-of-RoundB or
Specified Size, in. [mm]
Out-of-Square,C in. [mm]
Over Under
⁄ to 7⁄16 [8.00 to 11.00], inclD
5 16 0.006 [0.15] 0.006 [0.15] 0.009 [0.23]
Over 7⁄16 to 5⁄8 [11.00 to 15.50], inclD 0.007 [0.18] 0.007 [0.18] 0.010 [0.26]
Over 5⁄8 to 7⁄8 [15.50 to 22.00], incl 0.008 [0.20] 0.008 [0.20] 0.012 [0.30]
Over 7⁄8 to 1 [22.00 to 25.00], incl 0.009 [0.23] 0.009 [0.23] 0.013 [0.34]
Over 1 to 11⁄8 [25.00 to 28.00], incl 0.010 [0.25] 0.010 [0.25] 0.015 [0.38]
Over 11⁄8 to 11⁄4 [28.00 to 31.50], incl 0.011 [0.28] 0.011 [0.28] 0.016 [0.42]
Over 11⁄4 to 13⁄8 [31.50 to 34.50], incl 0.012 [0.30] 0.012 [0.30] 0.018 [0.46]
Over 13⁄8 to 11⁄2 [34.50 to 38.00], incl 0.014 [0.35] 0.014 [0.35] 0.021 [0.53]
Over 11⁄2 to 2 [38.00 to 50.00], incl 1⁄64 [0.40] 1⁄64 [0.40] 0.023 [0.60]
Over 2 to 21⁄2 [50.00 to 63.00], incl 1⁄32 [0.80] 0 0.023 [0.60]
Over 21⁄2 to 31⁄2 [63.00 to 90.00], incl 3⁄64 [1.20] 0 0.035 [0.90]
Over 31⁄2 to 41⁄2 [90.00 to 115.00], incl 1⁄16 [1.60] 0 0.046 [1.20]
Over 41⁄2 to 51⁄2 [115.00 to 140.00], incl 5⁄64 [2.00] 0 0.058 [1.50]
Over 51⁄2 to 61⁄2 [140.00 to 165.00], incl 1⁄8 [3.00] 0 0.070 [1.80]
Over 61⁄2 to 8 [165.00 to 200.00], incl 5⁄32 [4.00] 0 0.085 [2.20]
Over 8 to 12 [200.00 to 300.00], inclA 3⁄16 [4.80] 0 3⁄32 [2.40]

Over 12 to 15 [300.00 to 400.00], inclA 7⁄32 [5.50] 0 7⁄64 [2.80]

Over 15 to 25 [400.00 to 625.00], inclA 1⁄4 [6.50] 0 1⁄8 [3.20]

A
Turned bars are generally available from 2 to 25 in. [50 to 625 mm] in diameter, over 8 in. [200 mm] only turned bars are available.
B
Out-of-round is the difference between the maximum and minimum diameters of the bar measured at the same cross section.
C
Out-of-square section is the difference in the two dimensions at the same cross section of a square bar, each dimension being the distance between opposite faces.
D
Size tolerances have not been evolved for round sections in the size range of 5⁄16 in. [8.00 mm] to approximately 5⁄8 in. [15.5 mm] in diameter which are produced on
rod mills in coils.

TABLE 4 Permitted Variations in Size of Hot-Finished Hexagonal and Octagonal Bar

Permitted Variations from Specified Size, Maximum Difference in 3
Specified Sizes Measured Between Opposite in. [mm] Measurements for Hexagons
Sides, in. [mm]
Over Under Only, in. [mm]
⁄ to 1⁄2 [6.50 to 13.00], incl
14 0.007 [0.18] 0.007 [0.18] 0.011 [0.28]
Over 1⁄2 to 1 [13.00 to 25.00], incl 0.010 [0.25] 0.010 [0.25] 0.015 [0.38]
Over 1 to 11⁄2 [25.00 to 38.00], incl 0.021 [0.53] 0.021 [0.53] 0.025 [0.64]
Over 11⁄2 to 2 [38.00 to 50.00], incl 1⁄32 [0.80] 1⁄32 [0.80] 1⁄32 [0.80]

Over 2 to 21⁄2 [50.00 to 63.00], incl 3⁄64 [1.20] 3⁄64 [1.20] 3⁄64 [1.20]

Over 21⁄2 to 31⁄2 [63.00 to 90.00], incl 1⁄16 [1.60] 1⁄16 [1.60] 1⁄16 [1.60]

TABLE 5 Permitted Variations in Thickness and Width for Hot-Finished Flat Bars Rolled as Bars
Permitted Variations in Thickness for Thicknesses Given, in. [mm] Permitted
Variations in
Specified Width, 1⁄8 to 1⁄2 Over 1⁄2 to 1 Over 1 to 2 Over 2 to 4 Over 4 to 6 Over 6 to 8 Width, in,
in. [mm] [3.2 to 13], incl [13 to 25], incl [25 to 50], incl [50 to 100], incl [100 to 150], incl [150 to 200], incl [mm]
Over Under Over Under Over Under Over Under Over Under Over Under Over Under
To 1 [25.00], incl 0.008 0.008 0.010 0.010 ... ... ... ... ... ... ... ... 0.015 0.015
[0.20] [0.20] [0.25] [0.25] [0.40] [0.40]
Over 1 to 2 [25.00 to 0.012 0.012 0.015 0.015 0.031 0.031 ... ... ... ... ... ... 0.031 0.031
50.00], incl [0.30] [0.30] [0.40] [0.40] [0.80] [0.80] [0.80] [0.80]
Over 2 to 4 [50.00 to 0.015 0.015 0.020 0.020 0.031 0.031 0.062 0.031 ... ... ... ... 0.062 0.031
100.00], incl [0.40] [0.40] [0.50] [0.50] [0.80] [0.80] [1.60] [0.80] [1.60] [0.80]
Over 4 to 6 [100.00 to 0.015 0.015 0.020 0.020 0.031 0.031 0.062 0.031 0.093 0.062 ... ... 0.093 0.062
150.00], incl [0.40] [0.40] [0.50] [0.50] [0.80] [0.80] [1.60] [0.80] [2.40] [1.60] [2.40] [1.60]
Over 6 to 8 [150.00 to 0.016 0.016 0.025 0.025 0.031 0.031 0.062 0.031 0.093 0.062 0.125 0.156 0.125 0.156
200.00], incl [0.40] [0.40] [0.65] [0.65] [0.80] [0.80] [1.60] [0.80] [2.40] [1.60] [3.20] [4.00] [3.20] [4.00]
Over 8 to 10 [200.00 to 0.020 0.020 0.031 0.031 0.031 0.031 0.062 0.031 0.093 0.062 0.125 0.156 0.156 0.187
250.00], incl [0.50] [0.50] [0.80] [0.80] [0.80] [0.80] [1.60] [0.80] [2.40] [1.60] [3.20] [4.00] [4.00] [4.80]

10. Workmanship, Finish, and Appearance ordered, that they shall not adversely affect the forming,
10.1 The material shall be of uniform quality consistent machining, or fabrication of finished parts.
with good manufacturing and inspection practices. Imperfec-
tions shall be of such a nature or degree for the type and quality

--`,`,`,``,,,`,,,,````,``,````,`-`-`,,`,,`,`,,`---

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 A484/A484M − 12
TABLE 6 Permitted Variations in Dimensions for Flat Bars Cut from Strip or Plate
Permitted Variation in Permitted Variation in
Permitted VariationA in Width
Thickness, in. [mm] LengthB
Order Thickness
Widths to 4 [100] Widths Over 4 [100]
Over Under Over Under
Over Under Over Under
Over 0.114 to 0.130 [2.90 to 3.30], 0.010 0.010 0.094 0.031 0.094 0.094 0.188 0
incl [0.25] [0.25] [2.40] [0.80] [2.40] [2.40] [4.80] 0
Over 0.130 to 0.145 [3.30 to 3.70], 0.012 0.012 0.094 0.031 0.094 0.094 0.188 0
incl [0.30] [0.30] [2.40] [0.80] [2.40] [2.40] [4.80] 0
Over 0.145 to less than 3⁄16, [3.70 0.014 0.014 0.094 0.031 0.094 0.094 0.188 0
to 4.80] [0.35] [0.35] [2.40] [0.80] [2.40] [2.40] [4.80] 0
3⁄16 to 3⁄8 [4.80 to 9.00], excl 0.050 0.010 0.094 0.031 0.094 0.094 0.188 0
[1.25] [0.25] [2.40] [0.80] [2.40] [2.40] [4.80] 0
38 ⁄ to 3⁄4 [9.00 to 19.00], excl 0.060 0.010 0.094 0.031 0.094 0.094 0.188 0
[1.50] [0.25] [2.40] [0.80] [2.40] [2.40] [4.80] 0
34 ⁄ to 1 [19.00 to 25.00], excl 0.065 0.010 0.094 0.031 0.094 0.094 0.188 0
[1.65] [0.25] [2.40] [0.80] [2.40] [2.40] [4.80] 0
1 to 2 [25.00 to 50.00], excl 0.075 0.010 0.094 0.031 0.094 0.094 0.188 0
[1.90] [0.25] [2.40] [0.80] [2.40] [2.40] [4.80] 0
2 to 3 [50.00 to 75.00], excl 0.150 0.010 0.125 0.062 0.125 0.125 0.250 0
[3.80] [0.25] [3.00] [1.60] [3.00] [3.00] [6.50] 0
3 to 4 [75.00 to 100.00], excl 0.210 0.010 0.125 0.062 0.125 0.125 0.250 0
[5.30] [0.25] [3.00] [1.60] [3.00] [3.00] [6.50] 0
4 to 6 [100.00 to 150.00], excl 0.300 0.010 0.125 0.062 0.125 0.125 0.250 0
[7.60] [0.25] [3.00] [1.60] [3.00] [3.00] [6.50] 0
6 to 8 [150.00 to 200.00], excl 0.420 0.010 0.125 0.062 0.125 0.125 0.250 0
[10.65] [0.25] [3.00] [1.60] [3.00] [3.00] [6.50] 0
8 to 10 [200.00 to 250.00], excl 0.540 0.010 0.125 0.062 0.125 0.125 0.250 0
[13.70] [0.25] [3.00] [1.60] [3.00] [3.00] [6.50] 0
A
By agreement between purchaser and seller, tolerances can be shifted as desired to any combination of plus-minus tolerance between all minus and all plus.
B
Not applicable when bars are ordered random length.

TABLE 7 Permitted Variations in Size of Cold-Finished TABLE 8 Permitted Variations in Size of Cold Finished
Round Bars Hexagonal, Octagonal, and Square Bars
Permitted Variations from Specified Permitted Variations from
Size, in. [mm]A,B Specified Size,
Specified Size, in. [mm] in. [mm]B
Under Specified Size,A in. [mm]
Over
Under
Over
⁄ to 5⁄16 [1.50 to 8.00], excl
1 16 0.001 [0.03] 0.001 [0.03]
5⁄16 to 1⁄2 [8.00 to 13.00], excl 0.0015 [0.04] 0.0015 [0.04] ⁄ to 5⁄16 [3.00 to 8.00], excl
18 0 0.002 [0.05]
1⁄2 to 1 [13.00 to 25.00], excl 0.002 [0.05] 0.002 [0.05] ⁄ to 1⁄2 [8.00 to 13.00], excl
5 16 0 0.003 [0.08]
1 to 11⁄2 [25.00 to 38.00], excl 0.0025 [0.06] 0.0025 [0.06] 1⁄2 to 1 [13.00 to 25.00], incl 0 0.004 [0.10]
11⁄2 to 31⁄4 [38.00 to 83.00], inclC 0.003 [0.08] 0.003 [0.08] Over 1 to 2 [25.00 to 50.00], incl 0 0.006 [0.15]
31⁄4 to 4 [83.00 to 100], inclC 0.005 [0.13] 0.005 [0.13] Over 2 to 3 [50.00 to 75.00], incl 0 0.008 [0.20]
A Over 3 [75.00] 0 0.010 [0.25]
Unless otherwise specified, size tolerances are over and under as shown in the
A
above table. When required, however, they may be specified all over and nothing Distance across flats.
B
under, or all under and nothing over, or any combination of over and under, if the When it is necessary to heat treat or heat treat and pickle after cold finishing, size
total spread in size tolerance for a specified size is not less than the total spread tolerances are double those shown in the table.
shown in the table.
B
When it is necessary to heat treat or heat treat and pickle after cold finishing, size
tolerances are double those shown in the table.

--`,`,`,``,,,`,,,,````,``,````,`-`-`,,`,,`,`,,`---
C
Cold-finished bars over 4 in. [100 mm] in diameter are produced; size tolerances Appendix X1). When heat treating martensitic stainless steels
for such bars are not included herein. to Condition T or H, and when age hardening the precipitation
hardening grades, a lot shall consist of the same size, same
heat, and the same heat treat charge in a batch-type furnace or
11. Sampling under the same conditions in a continuous furnace.
11.2.1 For forgings weighing from 1000 lb [500 kg] to 5000
11.1 A lot for product analysis shall consist of all bars, lb [2500 kg] each, a lot shall consist of one size classification
shapes, or forgings made from the same heat. from each heat and each heat-treating charge. Where continu-
11.2 For other tests required by the product specification, a ous heat-treating furnaces are used, a lot shall consist of one
lot shall consist of all bar products of the same size, or forgings size classification from each heat, heated in a period of 8 h or
weighing less than 1000 lb [500 kg] each, from the same heat, less.
and produced under the same processing conditions. All 11.2.2 For all classes of forgings weighing from 5000 to
austenitic, ferritic, austenitic-ferritic, and free-machining 7000 lb [2300 to 3200 kg], each unit shall be considered a lot.
grades, martensitic grades annealed to Condition A, and 11.2.3 For all classes of forgings weighing more than 7000
precipitation or age-hardening grades when solution treated are lb [3200 kg], each unit shall be considered a double lot, and
permitted to be heat treated in the same furnace or in several two tension tests shall be required, one from each end of each
furnaces utilizing controlled processing and equipment (see forging. In the case of ring forgings, the tension test specimens

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TABLE 9 Permitted Variations in Width and Thickness of Cold- TABLE 11 Permitted Variations in Length of Hot-Finished or
Finished Flat Bars Cold-Finished Bars Machine Cut After Machine StraighteningA
Permitted Variations in Width, Over and NOTE 1—These tolerances are not applicable when bars are ordered
Under, in. [mm]A random length.
Width, in. [mm] For Thicknesses Specified Size of
For Thicknesses Permitted Variations in Length, in. [mm]
1⁄4 in. [6.5]
Over 1⁄4 in. Rounds, Squares,
[6.5] For Lengths up to 12 For Lengths Over 12
and Under Hexagons, Octa-
ft [4 m], incl to 25 ft [4 to 8 m], incl
gons, and Width of
1⁄16 to 3⁄8 [1.50 to 9.50], incl 0.005 [0.12] 0.005 [0.12] Flats,B in. [mm] Over Under Over Under
Over 3⁄8 to 1 [9.50 to 25.00], incl 0.004 [0.10] 0.004 [0.10] To 3 [75], incl 0 0
Over 1 to 2 [25.00 to 50.00], incl 0.006 [0.15] 0.004 [0.10] Over 3 [75] to 12 [225 to 300], ⁄ [13.0]
12 0 ⁄ [13.0]
12 0
Over 2 to 3 [50.00 to 75.00], incl 0.008 [0.20] 0.004 [0.10] incl
Over 3 to 41⁄2 [75.00 to 115.00], incl 0.010 [0.25] 0.005 [0.13] A
Table 11 does not apply to product produced on coil to bar equipment.
B
The maximum width of bar flats is 10 in. [250 mm].
Permitted Variations
in Thickness, Over
Thickness, in. [mm]
and Under, in [mm]A
TABLE 12 Permitted Variations in Straightness of Machine
Straightened Hot-Finished or Cold-Finished BarsA
Up to .029 [0.70], incl 0.001 [0.03]
Over .029 to .035 [0.70 to 1.00], incl 0.0015 [0.04] Measurement is taken on the concave side of the bar with a straightedge.
Over .035 to 1 [1.00 to 25.00], incl 0.002 [0.05] Unless otherwise specified, hot-finished or cold-finished bars for machining
Over 1 to 2 [25.00 to 50.00], incl 0.003 [0.08] purposes are furnished machine straightened to the following tolerances:
Over 2 to 3 [50.00 to 75.00], incl 0.004 [0.10] Hot finished:
1⁄8 in. [3.00 mm] in any 5 ft [1.50 m]; but may not exceed
Over 3 to 41⁄2 [75.00 to 115.00], inclB 0.005 [0.13]
1⁄8 in. [3.00 mm] x (length in ft/5) [m/1.50]
A
When it is necessary to heat treat or heat treat and pickle after cold finishing, size Cold finished:
tolerances are double those shown in the table. 1⁄16 in. [1.5 mm] in any 5 ft [1.5 m]; but may not exceed
B
Cold-finished flat bars over 41⁄2 in. [115 mm] wide or thick are produced; width 1⁄16 in. [1.5 mm] x (length in ft/5) [m/1.50]
and thickness tolerances for such bars are not included herein.
A
Straightness tolerances have not been established for sizes less than 1⁄2 in. [6.50
m].

TABLE 10 Permitted Variations in Length of Hot-Finished or

Cold-Finished Bars
TABLE 13 Permitted Variations for Hot-Finished Angles
Permitted Variations in Length, in. [mm]B
Specified Size of NOTE 1—For unequal leg angles, the longer leg determines the
For Lengths Over
Rounds, Squares, For Lengths up tolerance for the length of each leg.
12 to 25 ft
Hexagons, Octa- to 12 ftC [4 to 8 m],
gons, and Widths [4 m], incl Weight:A
incl For angles of 6 lb/ft [9.0 kg/m] or less, the weight tolerances shall not exceed
of Flats,A in. [mm]
Over Under Over Under ±71⁄2 %. For angles over 6 lb/ft [9 kg/m], the weight tolerance shall not exceed
±41⁄2 %.
Up to 6 [150.00], incl 1 [25] 0 11⁄4 [31.50] 0
Length of Legs:
Over 6 to 9 [150.00 to 11⁄4 [31.5] 0 11⁄2 [38.00] 0
For angles having legs or flanges up to 6 in. [150 mm], incl, the length toler-
225.00], incl
ance shall not exceed ±1⁄8 in. [3.00 mm]. For angles having legs or flanges over
Over 9 to 12 [225.00 to 11⁄2 [38] 0 2 [50.00] 0
6 in., the length tolerance shall not exceed +3⁄16 in. [5.00 mm] and -1⁄8 in.
300.00], incl
Squareness of Legs:
A
The maximum width of bar flats is 10 in. [250 mm]. The tolerance for the right angle between the legs is ±2°.
B
Random Lengths—When ordered as random lengths, permissible variation is 2 A
ft [0.6 m] over and under the specified length. When ordered as random lengths For equal leg angles, the theoretical weight per foot is:
subject to a minimum length requirement, permissible variation is 2 ft [0.6 m] over Weight/foot = (24 W × t − 12t 2) (0.2871 lb/ft)

--`,`,`,``,,,`,,,,````,``,````,`-`-`,,`,,`,`,,`---
and nothing under the specified length. where W is the specified length of the leg, and t is the specified thickness, both in
C
For lengths under 3 ft [1 m] and sizes up to 1⁄2 in. [13.00 mm] incl., the inches.
permissible variation in length is 1⁄32 in. [0.80 mm] over and nothing under. For unequal leg angles, the theoretical weight per foot is:
Weight/foot = [12 W1 × t + 12 W2 × t− 12t 2] (0.2871 lb/ft)
where W1 and W2 are the specified leg lengths, and t is the specified leg
thickness, all in inches.

shall be removed from each of two locations on the periphery,

approximately 180° apart, and insofar as practicable, from
opposite ends of the forging. product. Tension tests on forgings shall be prepared from
12. Number of Tests and Retests suitable prolongations, or at the option of the supplier, excess
forgings may be provided for test. All tests shall conform to the
12.1 Unless otherwise specified in the product specification, chemical and mechanical requirements of the product specifi-
one sample per heat shall be selected for chemical analysis and cation.
one mechanical test sample shall be selected from each lot of
bars and shapes and from each lot of forgings. Except for bars 12.2 One intergranular corrosion test, when required, and
cut from strip or plate, tension tests of bars and shapes shall be one grain size test, when required shall be made on each lot.
made in the longitudinal direction. Testing for bars cut from Often, it is convenient to obtain test material from the
strip or plate shall conform to the requirements of the appli- specimen selected for mechanical testing.
cable product specification for the strip or plate and to 12.3 If any test specimen shows defective machining or
Specification A480/A480M. Hardness tests on bars shall be flaws, it is permitted to discard the specimen and to substitute
conducted midway between the center and surface of the another specimen.

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TABLE 14 Permitted Variations in Size of Hot-Finished Channels
Size Tolerances, Over and Under, in. [mm]
Thickness of Web for Thickness Given Out-of-SquareB of
Specified Size of Channel, in. [mm] Either Flange, in./in.
Depth of SectionA Width of Flanges To 3⁄16 incl Over 3⁄16 [mm/ mm] of
[5.00 mm] [5.00 mm] Flange Width
To 11⁄2 [38.00], incl ⁄
3 64 [1.20] 3⁄64 [1.20] 0.015 [0.41] 0.023 [0.60] 3⁄64&#10 [1.20]

Over 11⁄2 to 3 [38.00 to 75.00], excl ⁄

3 32 [2.40] 3⁄32 [2.40] 0.023 [0.60] 0.030 [0.80] 3⁄64 [1.20]

A
Channel depth is measured at back of web.
B
For channels 5⁄8 in. [15.50 mm] and under in depth, the out-of-square tolerance is 5⁄64 in./in. [2.00 mm/mm] of depth. Out-of-squareness is determined by placing a square
against the bottom surface of the web and measuring the amount of toe-in or toe-out of either flange. Measurements for depth of section and width of flanges are over-all.

TABLE 15 Permitted Variations in Size of Hot-Finished Tees

Width or Depth, in.B Thickness of Flange, in. [mm] Thickness of Stem, in. [mm] Stem Out-of-
Specified Size of Tee,
SquareC in.
in. [mm]A Over Under Over Under Over Under [mm]
To 11⁄2 [38.00], incl. 5⁄64 [2.00] 5⁄64 [2.00] 0.015 [0.38] 0.015 [0.38] 0.008 [0.20] 0.030 [0.75] 3⁄64 [1.20]

Over 11⁄2 to 2 [38.00 to 50.00], 3⁄32 [2.40] 3⁄32 [2.40] 0.018 [0.46] 0.018 [0.46] 0.015 [0.38] 0.030 [0.75] 3⁄32 [2.40]

incl
Over 2 to 3 [50.00 to 75.00], ⁄
9 64 [3.60] ⁄
9 64 [3.60] 0.023 [0.60] 0.023 [0.60] 0.023 [0.60] 0.030 [0.75] ⁄
9 64 [3.60]
excl
A
The longer member of an unequal tee determines the size for tolerances.
B
Measurements for both width and depth are over-all.
C
Stem out-of-square is the variation from its true position of the center line of stem measured at the point.

TABLE 16 Permitted Variations in Size of Hot-Extruded Shapes TABLE 18 Length Tolerances for Extruded Shape LengthA,B
Section Tolerances, in. [mm] For Lengths up to 12 ft For Lengths over 12 ft
Specified Size, in [mm] Specified Size [4 m], incl. [4 m]
Over Under
Over Under Over Under
Dimensions under 1 [25] 0.020 0.020 Up to 3 in. [75 mm], excl ⁄16 in. [4.8 mm]
3 0 1⁄4 in. [6.5 mm] 0
[0.50] [0.50] A
Dimensions 1 to 3 [25 to 75], excl 0.031 0.031 Multiple Lengths—Unless otherwise specified, 1⁄4 in. [6.5 mm] is added to the
[0.80] [0.80] total length of each piece for each multiple contained.
B
Dimensions 3 to 4 [75 to 100], incl. 0.046 0.046 Random Lengths—When ordered as random lengths, permissible variation is 2
[1.20] [1.20] ft [0.6 m] over and under the specified length. When ordered as random lengths
Over 4 [100] 0.062 0.062 subject to a minimum length requirement, permissible variation is 2 ft [0.6 m] over
[1.60] [1.60] and nothing under the specified length.

TABLE 17 Angularity Tolerance for Extruded Shapes 14. Test Methods

Plus and minus max 2° 14.1 The properties enumerated in the applicable product
specification shall be tested in accordance with the following
ASTM methods:
14.1.1 Chemical Analysis—Test Methods, Practices, and
Terminology A751.
14.1.2 Tension Tests—Test Methods and Definitions A370.
14.1.3 Stress Rupture—Test Methods E139.
14.1.4 Brinell Hardness—Test Methods and Definitions
A370.
14.1.5 Rockwell Hardness—Test Methods and Definitions
A370.
12.4 If the results of any test are not in conformance with 14.1.6 Intergranular Corrosion—Practice E of Practices
the requirements of this specification or the requirements of the A262.
applicable product specification, it is permitted to retest a new 14.1.7 Grain Size—Test Methods E112.
sample of two specimens, to replace the original failed sample. 14.1.8 Charpy V-Notch Impact Test—Test Methods and
If one of the retest specimens fails, the lot shall be rejected. Definitions A370.
13. Retreatment 15. Inspection
13.1 Where the failure of a lot is attributable to inadequate 15.1 Civilian Procurement—Inspection of the material shall
heat treatment, the producer may reheat treat the material and be as agreed upon between the purchaser and the supplier as
submit the retreated material for test. part of the purchase contract.

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TABLE 19 Twist Tolerances 16. Rejection and Rehearing
NOTE 1—The amount of spiraling in an extruded shape is called twist. 16.1 The purchaser is permitted to reject material that fails
It can be measured by the height of the high corner from a flat reference to conform to the requirements of this specification. Rejection
base (established rise).
shall be reported to the producer or supplier promptly, prefer-
NOTE 2—Using the following calculation the twist tolerance must not ably in writing. In case of dissatisfaction with the results of a
exceed what is shown in the table. test, the producer or supplier is permitted to make claim for a
rehearing.

17. Certification
17.1 A certified report of the test results shall be furnished at
time of shipment. The report shall include the ASTM specifi-
cation designation, year date and revision, if any.
17.2 A document printed from or used in electronic form
Rise in 5 ft.=
established rise x number of ft in length from an electronic data interchange (EDI) transmission shall be
5
regarded as having the same validity as a counterpart printed in
the certifier’s facility. The content of the EDI transmitted
Section Width Rise in 5 ft
document shall meet the requirements of the invoked ASTM
⁄ in. [13 mm] to 11⁄2 in. [39 mm]
12 0.125 in. [3.00 mm]
Over 11⁄2 in. [39 mm] to 4 in. [100 mm] 0.188 in. [4.80 mm] standard(s) and conform to any existing EDI agreement be-
Over 4 in. [100 mm] 0.250 in. [6.50 mm] tween the purchaser and the supplier. Not withstanding the
absence of a signature, the organization submitting the EDI
transmission is responsible for the content of the report.

18. Product Marking

18.1 Civilian Procurement:
18.1.1 Bars and shapes shall be marked or tagged with the
name of manufacturer, purchaser’s name and order number,
ASTM specification designation, heat number, grade or type,
condition, finish, and where appropriate, the size, length, and
NOTE 1—Camber or bow tolerances shall not exceed 0.025 in. [0.60 weight. Unless otherwise specified, the method of marking is at
mm] × length in ft [m⁄3 ]. the option of the manufacturer. Marking shall be made by hot
Camber tolerances for hot finished or extruded shapes camber (or bow)
is the greatest deviation of a side from a straight line. Measurement is stamping, cold stamping, or painting of bars, or by marking
taken on the concave side of the shapes with a straight edge. tags attached to bundles, lifts, or boxes.
FIG. 1 Camber or Bow Tolerances 18.1.2 Forgings shall be legibly die stamped with the
manufacturer’s symbol or name, material specification
designation, grade or type, and heat identification. When die
stamping is not permitted by the purchaser, electric pencil or
electro-etching shall be used.
18.2 Government Procurement:
NOTE 1—Allowable deviation from flat is max 0.010 in. [0.25 mm] per 18.2.1 When specified in the contract or order, and for direct
1 in. [25 mm] of width. Maximum deviation on dimensions of less than 1 procurement by or direct shipment to the government, marking
in. [25 mm] is 0.010 in. [0.250 mm].
The transverse flatness tolerance is the maximum deviation from a for shipment, in addition to any requirements specified in the
reference base across any cross-section flat surface. contract or order, shall be in accordance with MIL-STD-129
FIG. 2 Transverse Flatness Tolerances for military agencies and in accordance with Fed. Std. No. 123
for civil agencies.
18.2.2 For government procurement by the Defense Supply
15.2 Government Procurement—Unless otherwise specified Agency, bars and shapes shall be marked continuously for
in the contract or purchase order: the seller is responsible for identification in accordance with Fed. Std. No. 183.
the performance of all inspection and test requirements in this
specification; the seller is permitted to use their own facilities 19. Packaging and Package Marking
or other suitable facilities for the performance of the inspection
and testing; and, the purchaser shall have the right to perform 19.1 Unless otherwise specified, the bars and shapes shall be
any of the inspection and tests set forth in this specification. packaged and loaded in accordance with Practices A700.
The manufacturer shall afford the purchaser’s inspector all 19.2 When specified in the contract or order, and for direct
reasonable facilities necessary to satisfy purchaser that the procurement by or direct shipment to the government, when
material is being furnished in accordance with the specifica- Level A is specified, preservation, packaging, and packing shall
tion. Inspection by the purchaser shall not interfere unneces- be in accordance with the Level A requirements of MIL-STD-
sarily with the manufacturer. 163.
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20. Keywords
20.1 general delivery requirements; stainless steel bars;
stainless steel billets; stainless steel forgings; stainless steel
shapes

ANNEX

(Mandatory Information)

A1. REQUIREMENTS FOR THE INTRODUCTION OF NEW MATERIALS

A1.1 New materials may be proposed for inclusion in A1.1.3 The application shall be accompanied by test data as
specifications referencing this Specification of General required by the applicable specification. Test data from a
Requirements, subject to the following conditions: minimum of three test lots, as defined by the specification, each
A1.1.1 The application for the addition of a new grade to a from a different heat, shall be furnished.
specification shall be made to the chairman of the subcommit- A1.1.4 The application shall provide recommendations for
tee which has jurisdiction over that specification.
all requirements appearing in the applicable specification.
A1.1.2 The application shall be accompanied by a statement
from at least one user indicating that there is a need for the new A1.1.5 The application shall state whether the new grade is
grade to be included in the applicable specification. covered by patent.

APPENDIXES

(Nonmandatory Information)

X1. RATIONALE REGARDING DEFINITION OF LOT FOR MECHANICAL PROPERTIES AND CORROSION TESTING

X1.1 It is generally recognized that material described as a X1.2.5 Further, it would be expected that grouped loads be
lot must be “produced under the same processing conditions,” handled within a relatively short time period, and that hardness
which means the same manufacturing order number, same size, testing be performed on at least one sample per charge.
same heat, same heat-treating procedure, and same subsequent
X1.3 The old definition of a lot for mechanical testing based
processing. Under those conditions, single samples can be
on simply the words “same size, heat, and heat treatment
selected to be representative of the total lot, with at least one
charge in a batch furnace” assumes that heat treating is the only
sample for each 20 000 pounds of material.
process affecting properties. This kind of definition ignores the
X1.2 Following the principle described in X1.1 generally effects of other processing, prior to and subsequent to heat
requires that the producer control each of several furnace loads treating. Moreover, it assumes that each heat-treated batch will
constituting the same lot so that: be uniform and unique rather than reproducible. In reality, heat
treating is a process which can be controlled easily throughout
X1.2.1 Set point temperature and process tolerance match, a batch and from batch to batch, with the net result that
multiple batches can be considered part of a single lot if
X1.2.2 Time at temperature for all thermal treatment shall
equipment and processing parameters meet the mandates of
match within 10 %,
X1.1 and X1.2.
X1.2.3 All furnaces used be similar in size and meet the
X1.4 The sampling specified for mechanical properties is
uniformity requirements of a documented furnace quality
not a statistical sampling plan. Therefore, it provides only
assurance program and,
typical data. Assurance of uniformity within the lot can be
X1.2.4 The quench systems are the same with respect to obtained only by the producer adequately controlling the
volume, type of quenchant, and circulation rate. processing parameters.

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X2. BAR CODING

X2.1 Bar coding to identify steel is not specifically ad- steel products and proposes that this bar coding standard be
dressed in Committee A01 specifications. Committee A01 considered as a possible auxiliary method of identification.
endorses the AIAG bar code standard for primary metals for

SUMMARY OF CHANGES

Committee A01 has identified the location of selected changes to this standard since the last issue
(A484/A484M – 11) that may impact the use of this standard. (Approved Nov. 1, 2012.)

(1) Revision of heat treatment requirements for S82441 in

Table 2.

Committee A01 has identified the location of selected changes to this standard since the last issue
(A484/A484M – 10) that may impact the use of this standard. (Approved Feb. 15, 2011.)

(1) Revision of heat treatment requirements for S32750 in

Table 2.

ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentioned
in this standard. Users of this standard are expressly advised that determination of the validity of any such patent rights, and the risk
of infringement of such rights, are entirely their own responsibility.

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