Designation: A 252 – 98 (Reapproved 2007)

Standard Specification for

Welded and Seamless Steel Pipe Piles1
This standard is issued under the fixed designation A 252; 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 (e) 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 E 29 Practice for Using Significant Digits in Test Data to

1.1 This specification covers nominal (average) wall steel Determine Conformance with Specifications
pipe piles of cylindrical shape and applies to pipe piles in 3. Terminology
which the steel cylinder acts as a permanent load-carrying
member, or as a shell to form cast-in-place concrete piles. 3.1 Definitions—Definitions of terms used in this specifica-
1.2 The values stated in inch-pound units are to be regarded tion shall be in accordance with Terminology A 941.
as standard. The values given in parentheses are mathematical 3.1.1 defect—an imperfection of sufficient size or magni-
conversions of the values in inch-pound units to values in SI tude to be cause for rejection.
units. 3.1.2 imperfection—any discontinuity or irregularity found
1.3 The text of this specification contains notes and foot- in the pipe.
notes that provide explanatory material. Such notes and foot- 4. Ordering Information
notes, excluding those in tables and figures, do not contain any
mandatory requirements. 4.1 Orders for material under this specification shall contain
1.4 The following precautionary caveat pertains only to the information concerning as many of the following items as are
test method portion, Section 16 of this specification. This required to describe the desired material adequately:
standard does not purport to address all of the safety problems, 4.1.1 Quantity (feet or number of lengths),
if any, associated with its use. It is the responsibility of the user 4.1.2 Name of material (steel pipe piles),
of this standard to establish appropriate safety and health 4.1.3 Method of manufacture (seamless or welded),
practices and determine the applicability of regulatory limita- 4.1.4 Grade (Tables 1 and 2),
tions prior to use. 4.1.5 Size (outside diameter and nominal wall thickness),
4.1.6 Lengths (single random, double random, or uniform)
2. Referenced Documents (see Section 13),
2.1 ASTM Standards: 2 4.1.7 End finish (Section 15), and
A 370 Test Methods and Definitions for Mechanical Testing 4.1.8 ASTM specification designation and year of issue,
of Steel Products 4.1.9 Location of purchaser’s inspection (see 19.1), and
A 751 Test Methods, Practices, and Terminology for 4.1.10 Bar coding (see 22.2).
Chemical Analysis of Steel Products 5. Materials and Manufacture
A 941 Terminology Relating to Steel, Stainless Steel, Re-
lated Alloys, and Ferroalloys 5.1 The piles shall be made by the seamless, electric
resistance welded, flash welded, or fusion welded process. The
seams of welded pipe piles shall be longitudinal, helical-butt,
or helical-lap.
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 NOTE 1—For welded pipe piles, the weld should not fail when the
A01.09 on Carbon Steel Tubular Products. product is properly fabricated and installed and subjected to its intended
Current edition approved Nov. 1, 2007. Published January 2008. Originally end use.
approved in 1944. Last previous edition approved in 2002 as A 252 – 98(2002).
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 6. Process
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on 6.1 The steel shall be made by one or more of the following
the ASTM website. processes: open-hearth, basic-oxygen, or electric-furnace.

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 A 252 – 98 (2007)
TABLE 1 Tensile Requirements
NOTE—Where an ellipsis (...) appears in this table, there is no requirement.
Grade 1 Grade 2 Grade 3
Tensile strength, min, psi (MPa) 50 000 (345) 60 000 (415) 66 000 (455)
Yield point or yield strength, min, psi (MPa) 30 000 (205) 35 000 (240) 45 000 (310)
Basic minimum elongation for nominal wall thicknesses 5⁄16 in. (7.9 mm) or more:
Elongation in 8 in. (203.2 mm), min, % 18 14 ...
Elongation in 2 in. (50.8 mm), min, % 30 25 20
For nominal wall thicknesses less than 5⁄16 in. (7.9 mm), the deduction from 1.50A 1.25A 1.0A
the basic minimum elongation in 2 in. (50.08 mm) for each 1⁄32 - in. (0.8 mm)
decrease in nominal wall thickness below 5⁄16 in. (7.9 mm), in percentage points
A
Table 2 gives the computed minimum values:

TABLE 2 Calculated Minimum Elongation ValuesA

Nominal Wall Thickness Elongation in 2 in. (50.8 mm), min, %
in. mm Grade 1 Grade 2 Grade 3
⁄
5 16 or 0.312 7.9 30.00 25.00 20.00
⁄
9 32 or 0.281 7.1 28.50 23.75 19.00
⁄
14 or 0.250 6.4 27.00 22.50 18.00
7⁄32 or 0.219 5.6 25.50 21.25 17.00
3⁄16 or 0.188 4.8 24.00 20.00 16.00
11⁄64 or 0.172 4.4 23.25 19.50 15.50
5⁄32 or 0.156 4.0 22.50 18.75 15.00
9⁄64 or 0.141 3.6 21.75 18.25 14.50
1⁄8 or 0.125 3.2 21.00 17.50 14.00
7⁄64 or 0.109 2.8 20.25 16.75 13.50
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A
The above table gives the calculated minimum elongation values for various nominal wall thicknesses. Where the specified nominal wall thickness is intermediate to
those shown above, the minimum elongation value shall be determined as follows:
Grade
1 E = 48t + 15.00
2 E = 40t + 12.50
3 E = 32t + 10.00

where:
E = elongation in 2 in., %, and
t = specified nominal wall thickness, in.

7. Chemical Composition the lot shall be rejected or analyses of four additional samples
7.1 The steel shall contain no more than 0.050 % phospho- selected from the lot shall be made, and each shall conform to
rous. the specified requirement. If the chemical composition of only
one of the samples representing a lot fails to conform to the
8. Heat Analysis specified requirement, the lot shall be rejected or analyses of
8.1 Each heat analysis shall conform to the requirement two additional samples selected from the lot shall be made, and
specified in 7.1. When requested by the purchaser, the appli- each shall conform to the specified requirement.
cable heat analyses shall be reported to the purchaser ro the
purchaser’s representative. 10. Tensile Requirements Tensile Requirements
10.1 The material shall conform to the requirements as to
9. Product Analysis tensile properties prescribed in Tables 1 and 2.
9.1 Chemical analysis shall be in accordance with Test 10.2 The yield point shall be determined by the drop of the
Methods, Practices, and Terminology A 751. beam, by the halt in the gage of the testing machine, by the use
9.2 It shall be permissible for the purchaser to make product of dividers, or by other approved methods. When a definite
analyses using samples from lots of pipe piles as follows: yield point is not exhibited, the yield strength corresponding to
Pipe Size Outside Number of Samples and Size of Lot a permanent offset of 0.2 % of the gage length of the specimen,
Diameter, in. (mm) or to a total extension of 0.5 % of the gage length under load
Under 14 (355.6) 2 from 200 pipe or fraction thereof shall be determined.
14 to 36, incl (355.6 2 from 100 pipe or fraction thereof
to 914)
Over 36 (914) 2 from 3000 ft (914 m) or fraction thereof 11. Weights Per Unit Length
The product analyses shall conform to the requirement in 11.1 The weights per unit length for various sizes of pipe
7.1. piles are listed in Table 3.
9.3 If the chemical compositions of both of the samples 11.2 For pipe pile sizes not listed in Table 3, the weight per
representing a lot fail to conform to the specified requirement, unit length shall be calculated as follows:

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 A 252 – 98 (2007)
W5 10.69~D 2 t!t (1) NOTE 2—The minimum permissible wall thickness on inspection is
shown in Table X1.1 (see Appendix) for various nominal wall thicknesses.

where: 13. Lengths

W = weight per unit length, lb/ft, 13.1 Pipe piles shall be furnished in single random lengths,
D = specified outside diameter, in., and
double random lengths, or in uniform lengths as specified in
t = specified nominal wall thickness, in.
the purchase order, in accordance with the following limits:
12. Permissible Variations in Weights and Dimensions Single random lengths 16 to 25 ft (4.88 to 7.62 mm), incl
Double random lengths over 25 ft (7.62 m) with a minimum average
12.1 Weight—Each length of pipe pile shall be weighed of 35 ft (10.67 m)
separately and its weight shall not vary more than 15 % over or Uniform lengths length as specified with a permissible varia-
tion of 61 in.
5 % under its theoretical weight, calculated using its length and
its weight per unit length (see Section 11). 13.2 Lengths that have been spliced at the mill by welding
12.2 Outside Diameter—The outside diameter of pipe piles shall be acceptable as the equivalent of unspliced lengths
shall not vary more than 61 % from the specified outside provided tension test specimens cut from sample splices
diameter. conform to the tensile strength requirements prescribed in
12.3 Wall Thickness—The wall thickness at any point shall Tables 1 and 2. The welding bead shall not be removed for this
not be more than 12.5 % under the specified nominal wall test. Such specimens shall be made in accordance with the
thickness. provisions specified in Sections 16-18.

TABLE 3 Common Sizes and Weights Per Unit LengthA

Outside Diameter, in. Nominal Wall Thickness, Weight per Unit Lengths, Outside Diameter, in.B Nominal Wall Thickness, Weight per Unit Lengths,
in.B lb/ftC in.B lb/ftC
6 0.134 8.40 12 0.134 17.00
0.141 8.83 0.141 17.87
0.156 9.75 0.150 19.00
0.164 10.23 0.164 20.75
0.172 10.72 0.172 21.75
0.179 22.62
8 0.141 11.85 0.188 23.74
0.172 14.39 0.203 25.60
0.219 27.58
8 5⁄ 8 0.109 9.92 0.230 28.94
0.141 12.79 0.250 31.40
0.172 15.54 0.281 35.20
0.188 16.96 0.312 38.98
0.203 18.28
0.219 19.68 123⁄4 0.109 14.73
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0.250 22.38 0.134 18.07

0.277 24.72 0.141 19.01
0.312 27.73 0.150 20.20
0.322 28.58 0.164 22.07
0.344 30.45 0.172 23.13
0.375 33.07 0.179 24.05
0.438 38.33 0.188 25.25
0.500 43.43 0.203 27.23
0.219 29.34
10 0.109 11.53 0.230 30.78
0.120 12.67 0.250 33.41
0.134 14.13 0.281 37.46
0.141 14.86 0.312 41.48
0.150 15.79 0.330 43.81
0.164 17.24 0.344 45.62
0.172 18.07 0.375 49.61
0.179 18.79 0.438 57.65
0.188 19.72 0.500 65.48
0.203 21.26
0.219 22.90 14 0.134 19.86
0.230 24.02 0.141 20.89
0.250 26.06 0.150 22.21
0.164 24.26
103⁄4 0.109 12.40 0.172 25.43
0.120 13.64 0.179 26.45
0.134 15.21 0.188 27.76
0.141 15.99 0.203 29.94
0.150 17.00 0.219 32.26
0.164 18.56 0.230 33.86
0.172 19.45 0.250 36.75
0.179 20.23 0.281 41.21
0.188 21.23 0.312 45.65

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 A 252 – 98 (2007)

TABLE 3 Continued
Outside Diameter, in. Nominal Wall Thickness, Weight per Unit Lengths, Outside Diameter, in.B Nominal Wall Thickness, Weight per Unit Lengths,
in.B lb/ftC in.B lb/ftC
0.203 22.89 0.344 50.22
0.219 24.65 0.375 54.62
0.230 25.87 0.438 63.50
0.250 28.06 0.469 67.84
0.279 31.23 0.500 72.16
0.307 34.27
0.344 38.27 16 0.134 22.73
0.141 23.90
0.150 25.42
0.164 27.76
16 0.172 29.10 20 0.188 31.78
0.179 30.27 0.219 46.31
0.250 52.78
0.188 30.61 0.281 59.23
0.203 34.28 0.312 65.66
0.219 36.95 0.344 72.28
0.230 38.77 0.375 78.67
0.250 42.09 0.438 91.59
0.281 47.22 0.469 97.92
0.312 52.32 0.500 104.23
0.344 57.57
0.375 62.64 22 0.172 40.13
0.438 72.86 0.188 43.84
0.469 77.87 0.219 50.99
0.500 82.85 0.250 58.13
0.281 65.24
18 0.141 26.92 0.312 72.34
0.172 32.78 0.375 86.69
0.188 35.80 0.438 100.96
0.219 41.63 0.469 107.95
0.230 43.69 0.500 114.92
0.250 47.44
0.281 53.23 24 0.172 43.81
0.312 58.99 0.188 47.86
0.344 64.93 0.219 55.67
0.375 70.65 0.250 63.47
0.438 82.23 0.281 71.25
0.469 87.89 0.312 79.01
0.500 93.54 0.375 94.71
0.438 110.32
20 0.141 29.93 0.469 117.98
0.172 36.46 0.500 125.62
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A
Subject to agreement between the manufacturer and the purchaser, sizes and weights per unit length other than those listed shall be permitted.
B
1 in. = 25.4 mm
C
1 lb/ft = 1.49 kg/m.

14. Workmanship, Finish, and Appearance angle of 30 +5, −0°, measured from a line drawn perpendicular
14.1 The finished pipe piles shall be reasonably straight and to the axis of the pipe pile.
shall not contain imperfections in such number or of such
character as to render the pipe unsuitable for pipe piles. 16. Number of Tests
14.2 Surface imperfections having a depth not in excess of 16.1 One tension test shall be made on one length or
25 % of the specified nominal wall thickness shall be accept- fraction thereof of each size, or one piece of skelp representing
able. It shall be permissible to establish the depth of such each lot of 200 lengths or fraction thereof of each size.
imperfections by grinding or filing. 16.2 A retest shall be allowed if the percentage of elonga-
14.3 Surface imperfections having a depth in excess of 25 % tion of any test tension specimen is less than that prescribed in
of the specified nominal wall thickness shall be considered to Tables 1 and 2 and any part of the fracture is more than 3⁄4 in.
be defects. It shall be permissible for defects not deeper than (19 mm) from the center of the gage length for test specimens
331⁄3 % of the specified nominal wall thickness to be repaired having a 2–in. (50 mm) gage length, or is outside of the middle
by welding, provided that the defect is completely removed third of the gage length for test specimens having an 8–in. (200
prior to welding. mm) gage length, as indicated by scribe scratches marked on
the specimen before testing. A retest shall also be allowed if
15. Ends any part of the fracture is in an inside or outside surface
15.1 Pipe piles shall be furnished with plain ends. Unless imperfection.
otherwise specified, pipe piles shall have either flame–cut or 16.3 It shall be permissible to discard any test specimen that
machine–cut ends, with the burrs at the ends removed. Where shows defective machining or develops imperfections and
ends are specified to be beveled, they shall be beveled to an substitute another test specimen.

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 A 252 – 98 (2007)
17. Retests shall be so conducted as not to interfere unnecessarily with the
17.1 If the results of the tension test representing any lot fail operation of the works.
to conform to the applicable requirements prescribed in Tables 20. Rejection
1 and 2, the lot shall be rejected or retested using two
additional lengths from the lot, with each such test being 20.1 It shall be permissible for the purchaser inspect the
required to conform to such specified requirements. pipe piles received from the manufacturer and reject any pipe
pile that does not meet the requirements of this specification
18. Test Specimens and Test Methods and the purchase order, based upon the applicable inspection
and test methods. The purchaser shall notify the manufacturer
18.1 The tension test specimens and test methods shall be in
of any pipe pile that has been rejected, and the disposition of
accordance with Test Methods and Definitions A 370, espe-
such pipe piles shall be subject to agreement between the
cially Annex A2.
manufacturer and the purchaser.
18.2 At the option of the manufacturer, the tension test
20.2 It shall be permissible for the purchaser to set aside any
specimens shall be longitudinal or transverse strip test speci-
pipe pile that is found in fabrication or installation within the
mens, with a gage length of 2 in. (50 mm) or 8 in. (200 mm),
scope of this specification to be unsuitable for the intended end
taken from the pipe or the skelp. Within their gage length,
use, based on the requirements of this specification. The
longitudinal strip test specimens shall be nominally 11⁄2 in. (38
purchaser shall notify the manufacturer of any pipe pile that
mm) wide, non-flattened, and with parallel sides.
has been set aside. Such pipe piles shall be subject to mutual
18.3 For welded pipe piles, the tension test specimens shall
investigation as to the nature and severity of the deficiency and
be taken as follows:
the forming or installation, or both, conditions involved. The
18.3.1 For longitudinal–seam pipe piles, any longitudinal
disposition of such pipe piles shall be subject to agreement
strip test specimens shall be taken from the pipe parallel to the
between the manufacturer and the purchaser.
pipe axis and 90° from the weld, or from the skelp at a
corresponding location and orientation, and any transverse 21. Certification
strip test specimens shall be taken from the pipe 90° to the pipe 21.1 Where specified in the purchase order, the manufac-
axis and 180° from the weld, or from the skelp at a correspond- turer shall furnish a certificate of compliance stating that the
ing location and orientation. pipe pile was manufactured, tested, and inspected in accor-
18.3.2 For helical-seam pipe piles, any longitudinal strip dance with the requirements of this specification (including
test specimens shall be taken from the pipe parallel to the pipe year date) and any requirements specified in the purchase
axis and at such a location that the center of the specimen is order, and was found to meet such requirements, and shall
located at least a quarter of the distance between adjacent weld furnish a test report containing the results of the applicable heat
convolutions, or from the skelp at a corresponding location and analyses, product analyses, and tension tests.
orientation; and transverse specimens shall be taken from the
pipe 90° to the pipe axis and at such a location that the center 22. Product Marking
of the specimen is located approximately half the distance 22.1 Each length of pipe pile shall be legibly marked by
between adjacent weld convolutions, or from the skelp at a stenciling, stamping, or rolling to show: the name or brand of
corresponding location and orientation. the manufacturer; the heat number; the process of manufacture
18.4 Specimens shall be tested at room temperature. (seamless, flash welded, fusion welded, or electric resistance
welded), the type of helical seam (helical-lap or helical-butt), if
19. Inspection
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applicable; the outside diameter, nominal wall thickness,

19.1 The inspector representing the purchaser shall have length, and weight per unit length; the specification designation
entry, at all times while work on the contract of the purchaser (year date not required); and the grade.
is being performed, to all parts of the manufacturer’s works 22.2 Bar Coding—In addition to the requirements in 22.1, it
that concern the manufacture of the material ordered. The shall be permissible for bar coding to be used as a supplemen-
manufacturer shall afford the inspector all reasonable facilities tary identification method; when a specific bar coding system
to satisfy the inspector that the material is being furnished in is specified in the purchase order, that system shall be used.
accordance with the requirements of this specification and any
other requirements specified in the purchase order. All tests and 23. Keywords
inspections shall be made at the place of manufacture prior to 23.1 seamless steel pipe; steel piles; steel pipe; welded steel
shipment, unless otherwise specified in the purchase order, and pipe

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 A 252 – 98 (2007)
APPENDIX

(Nonmandatory Information)

X1. Minimum Permissible Pipe Wall Thicknesses on Inspection

X1.1 See Table X1.1for minimum wall thicknesses.

TABLE X1.1 Table of Minimum Wall Thicknesses on Inspection for Nominal (Average) Pipe Wall Thicknesses
NOTE 1—The following equation, upon which this table is based, may be applied to calculate minimum wall thickness from nominal (average) wall
thickness:
tn 3 0.875 5 tm

where:
tn = nominal wall thickness, in., and
tm = minimum permissible wall thickness, in.

The wall thickness is expressed to three decimal places, with rounding being in accordance with Practice E 29.

NOTE 2—This table is a master table covering some of the nominal wall thicknesses available in the purchase of different classifications of pipe, but
it is not meant to imply that all of these nominal wall thicknesses are necessarily obtainable.
Nominal Wall Minimum Permissible Nominal Wall Minimum Permissible Nominal Wall Minimum Permissible
Thickness (tn), in.A Wall Thickness on Inspec- Thickness (tn), in.A Wall Thickness on Inspec- Thickness (tn), in.A Wall Thickness on Inspec-
tion tion tion
(tm), in.A (tm), in.A (tm), in.A
0.068 0.060 0.276 0.242 0.674 0.590
0.088 0.077 0.277 0.242 0.687 0.601
0.091 0.080 0.279 0.244 0.719 0.629
0.095 0.083 0.280 0.245 0.750 0.656
0.109 0.095 0.281 0.246 0.812 0.710
0.113 0.099 0.294 0.257 0.843 0.738
0.119 0.104 0.300 0.262 0.864 0.756
0.120 0.105 0.307 0.269 0.875 0.766
0.125 0.109 0.308 0.270 0.906 0.793
0.126 0.110 0.312 0.273 0.937 0.820
0.133 0.116 0.318 0.278 0.968 0.847

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0.134 0.117 0.322 0.282 1.000 0.875
0.140 0.122 0.330 0.289 1.031 0.902
0.141 0.123 0.337 0.295 1.062 0.929
0.145 0.127 0.343 0.300 1.093 0.956
0.147 0.129 0.344 0.301 1.125 0.984
0.150 0.131 0.358 0.313 1.156 1.012
0.154 0.135 0.365 0.319 1.218 1.066
0.156 0.136 0.375 0.328 1.250 1.094
0.164 0.143 0.382 0.334 1.281 1.121
0.172 0.150 0.400 0.350 1.312 1.148
0.179 0.157 0.406 0.355 1.343 1.175
0.187 0.164 0.432 0.378 1.375 1.203
0.188 0.164 0.436 0.382 1.406 1.230
0.191 0.167 0.437 0.382 1.438 1.258
0.200 0.175 0.438 0.383 1.500 1.312
0.203 0.178 0.469 0.410 1.531 1.340
0.216 0.189 0.500 0.438 1.562 1.367
0.218 0.191 0.531 0.465 1.593 1.394
0.219 0.192 0.552 0.483 1.750 1.531
0.226 0.198 0.562 0.492 1.781 1.558
0.230 0.201 0.593 0.519 1.812 1.586
0.237 0.207 0.600 0.525 1.968 1.722
0.250 0.219 0.625 0.547 2.062 1.804
0.258 0.226 0.656 0.574 2.343 2.050
A
1 in. = 25.4 mm

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

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