STELLITE

STELLITE ALLOYS
Stellite
Alloys
With over 100 years of proven
performance, Kennametal’s Stellite™
alloys have become known as the
worldwide material solution in wear,
heat and corrosion applications. These
hardfacing alloys are offered in form
of rod, wire, powder, & electrodes
and can be tailored to meet individual
customer needs.
In addition to welding consumables,
Kennametal also offers its expertise
and experience in coating services and
technologies such as HVOF, PTA, and
spray fuse.

Industries Served
Kennametal utilizes its proven heat,
wear, and corrosion experience to create
cost effective solutions in some of the
most hostile operating environments.
As a result, the Stellite™ family of
alloys have been become standardized
solutions to a broad range of industries,
including:
• Aerospace
• Oil & Gas
• Automotive
• Power Generation
• Steel
• Timber
• Glass
• Forging
• Dental
• Food Processing
Table of Contents

At a Glance..............................................2

TIG and Oxy-Acetylene Welding................4

MMA Weld Deposition..............................6

MIG Weld Deposition,

Submerged Arc Welding...........................8

PTA & Laser Weld Deposition.................10

Plasma Spray & HVOF Deposition...........14

Spray and Fuse & Powder Welding.........20

Stellite Alloys
At a Glance

The Stellite Family

Stellite Alloys
TM
Deloro Alloys
TM

The cobalt-based Stellite™ alloys are our most well- The Deloro™ alloys are nickel based with additions of
known and successful alloys, with the best “all-round” typically Cr, C, B, Fe, and Si. They cover a very wide
properties. They combine excellent mechanical wear range of hardness from soft, tough, build-up alloys that
resistance, especially at high temperatures, with very are easily machined or hand finished to exceptionally
good corrosion resistance. The Stellite™ alloys are hard, wear-resistant alloys. They can be selected for
mostly cobalt based with additions of Cr, C, W, and/or hardnesses of between 20 and 62 HRC depending
Mo. They are resistant to cavitation, corrosion, erosion, on the application. Their low melting point makes
abrasion, and galling. The lower carbon alloys are these powders ideal for spray/fuse or powder welding
generally recommended for cavitation, sliding wear, applications. The lower hardness Deloro™ alloys are
or moderate galling. The higher carbon alloys are typically used for glass forming molds. The higher
usually selected for abrasion, severe galling, or low- hardness Deloro™ alloys are used in severe wear
angle erosion. Stellite™ 6 is our most popular alloy as applications, such as rebuilding the flights of feeder
it provides a good balance of all of these properties. screws, and they can be blended with carbides for an
The Stellite™ alloys retain their properties at high even harder deposit. They maintain their properties up
temperatures where they also have excellent oxidation to temperatures of about 315° C (600° F) and also offer
resistance. They are typically used in the temperature good oxidation resistance.
range 315 – 600° C (600 – 1112° F). They can be
finished to exceptional levels of surface finish with a low Tribaloy Alloys
TM

coefficient of friction to give good sliding wear. Tribaloy™ alloys, with either nickel or cobalt base, were
developed for applications in which extreme wear is
combined with high temperatures and corrosive media.
Their high molybdenum content accounts for the
excellent dry-running properties of Tribaloy™ alloys and
makes them very suitable for use in adhesive (metal-to-
metal) wear situations. Tribaloy™ alloys can be used up
to 800–1000° C (1472–1832° F).

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 Stellite Alloys
At a Glance

Nistelle Alloys TM
Jet Kote Powders
TM

Nistelle™ alloys are designed for corrosion resistance Jet Kote™ powders feature a variety alloys developed
rather than wear resistance, particularly in aggressive specifically for HVOF operations. These powders
chemical environments where their high chromium are designed to produce well-bonded, high-density
and molybdenum contents provide excellent pitting coatings through most HVOF systems.
resistance. As a class, they are also generally resistant
to high-temperature oxidation and hot gas corrosion. The JetKote™ portfolio includes powders based
Care should be taken to select the correct alloy for any on the Stellite™ family and an offering of unique
given corrosive environment. carbide-metal (e.g., WC-Co or Cr3Cr2-NiCr) composite
powders which provide exceptional wear resistance.
Stelcar™ Alloys
Stelcar™ alloys are mixtures of carbide particles Delcrome Alloys TM

and nickel- or cobalt-based powders. Due to their These iron-based alloys were developed to resist
construction, Stelcar™ materials are available only in abrasive wear at lower temperatures, typically up
powder form, for application by thermal spraying or to 200º C. When compared with our cobalt- and
weld hardfacing. nickel-based alloys, their corrosion resistance is also
comparatively low.

Selection Table
HIGH OPERATING
ALLOY MECHANICAL WEAR CORROSION
TEMPERATURE

Stellite™

Resistance
Deloro™

Low Tribaloy™

Satisfactory Nistelle™

Very Good Delcrome™

Excellent Stelcar™

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Stellite Alloys
TIG and Oxy-Acetylene Welding

TIG and Oxy-Acetylene Welding

In TIG (Tungsten Inert Gas), also known as Gas Tungsten Welding rods used for TIG welding are also used for
Arc Welding (GTAW), an arc is drawn between a non- hardfacing with the oxy-acetylene welding process.
consumable tungsten electrode and the workpiece. The With the correct operation, a very low level of iron dilution
electrode, the arc, and the weld-pool are protected from can be achieved in the overlay.
the atmosphere with an inert shielding gas. The hardfacing
material is in the form of a rod. Advantages of the TIG Rod is available in these standard diameters:
process include simple manual operation and good control • 2.4mm
of the welding arc. The process can also be mechanised, in • 3.2mm (1/8")
which case a manipulator is used to move the workpiece in
• 4.0mm (5/32")
relation to the welding torch and the hardfacing rod or wire.
• 5.0mm (3/16")
• 6.4mm (1/4")
• 8.0mm (5/16")

Rod inventory held in North America is typically in

36" lengths. Other rod sizes may be available by
special request.
Shielding Gas Nozzle Tungsten Electrode
Rod is typically packaged in 10kg (22lb) bundles. Other
bundling available upon request.

Contact Tube

Shielding Gas

Arc

Stellite Hardfacing Rod

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 Stellite Alloys
TIG and Oxy-Acetylene Welding

TIG and Oxy-Acetylene Welding

NOMINAL ANALYSIS OF WELDING ROD1 ASME/ Hardness

ALLOY Others UNS
Co Cr W C Ni Mo Fe Si AWS2 (HRC)3
COBALT-BASED ALLOY BARE WELDING RODS
Stellite™ alloy 1 Bal. 32 12 2.45 <3.0 <1.0 <3.0 <2.0 <0.5 R30001 (SF)A 5.21 51–56
ERCoCr-C
Stellite™ alloy 6 Bal. 30 4–5 1.2 <3.0 <1.0 <3.0 <2.0 <0.5 R30006 (SF)A 5.21 40–45
ERCoCr-A
Stellite™ alloy 12 Bal. 30 8 1.55 <3.0 <1.0 <3.0 <2.0 <0.5 R30012 (SF)A 5.21 46–51
ERCoCr-B

Stellite™ alloy 20 Bal. 33 16 2.45 <3.0 <1.0 <3.0 <2.0 <0.5 — — 53–59

Stellite alloy 21
™
Bal. 28 — 0.25 3 5.2 <3.0 <1.5 <0.5 R30021 (SF)A 5.21 28–40*
ERCoCr-E

Stellite™ alloy 25 Bal. 20 14 0.1 10 <1.0 <3.0 <1.0 <0.5 — — 20–45*

Stellite alloy F
™
Bal. 26 12 1.7 22 <1.0 <3.0 <2.0 <0.5 R30002 (SF)A 5.21 40–45*
ERCoCr-F

Stellite™ alloy 706 Bal. 31 — 1.2 <3.0 4 <3.0 <1.0 <1.0 — — 39–44

Stellite™ alloy 712 Bal. 31 — 1.55 <3.0 8 <3.0 <2.0 <1.0 — — 46–51

ULTIMET™ ** Bal. 26 2 0.06 9 5 3 — <1.0 R31233 — 28–45*

NICKEL-BASED ALLOY BARE WELDING RODS

Nistelle alloy C
™
— 17 5 0.1 Bal. 17 6 — 0.3%V N30002 — 17–27*

Deloro alloy 40
™
— 12 — 0.4 Bal. — 2–3 2.9 1.6% B N99644 (SF)A 5.21 36–42
ERNiCr-A
Deloro™ alloy 50 — 12 — 0.5 Bal. — 3–5 3.5 2.2% B N99645 (SF)A 5.21 48–55
ERNiCr-B

Deloro™ alloy 55 — 12 — 0.6 Bal. — 3–5 4.0 2.3% B — — 52–57

Deloro™ alloy 60 – 13 – 0.7 Bal. – 3–5 4.3 3.0% B N99646 (SF)A 5.21 57–62
ERNiCr-C
INTER-METALLIC LAVES PHASE ALLOY WELDING RODS (TRIBALOY™ ALLOYS)

Tribaloy™ alloy T-400 Bal. 8.5 — <0.08 <1.5 28 <1.5 2.5 <1.0 R30400 — 54–58

Tribaloy™ alloy T-400C Bal. 14 — <0.08 <1.5 27 <1.5 2.6 <1.0 — — 54–59

Tribaloy™ alloy T-700 (Ni based) <1.5 16 — <0.08 Bal. 32 <1.5 3.4 <1.0 — — 50–58

Tribaloy™ alloy T-800 Bal. 18 – <0.08 <1.5 28 <1.5 3.4 <1.0 – – 55–60

Tribaloy™ alloy T-900 Bal. 18 – <0.08 16 22 – 2.7 <1.0 – – 52–57

1 Nominal analysis is a guideline only for standard product. Does not include all incidental elements and may differ depending on the exact specification/standard used when ordering.
2 When written certification to a standard is required, please specify this when ordering. Certain products can also be certified to AMS, SAE, and other standards. Please contact us for more details.
3 Undiluted weld metal.
* Depending upon the degree of work hardening.
**ULTIMET™ is a registered trademark of Haynes International.

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Stellite Alloys
Manual Metal Arc Weld Deposition

Manual Metal Arc (MMA) Weld Deposition

In this process, an arc is drawn between a coated
consumable electrode and the workpiece. The metallic core
is melted by the arc and is transferred to the weld pool as
molten droplets. The electrode coating also melts to form Core Wire
a gas shield around the arc and the weld pool as well as
a slag on the surface of the weld pool, thus protecting the Electrode Holder
cooling weld-pool from the atmosphere. The slag must be
removed after each layer.

MMA welding is still a widely used hardfacing process. Due

to the low cost of the equipment, the low operating costs
of the process, and the ease of transporting the equipment,
this flexible process is ideally suited to repair work.

Coated Stellite™ Electrode

Arc

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 Stellite Alloys
Manual Metal Arc Weld Deposition

MMA Weld Deposition

NOMINAL ANALYSIS OF UNDILUTED WELD METAL4 ASME/ Hardness

ALLOY Others UNS
Co Cr W C Ni Mo Fe Si AWS5 (HRC)6
COBALT-BASED ALLOY ELECTRODES
Stellite™ alloy 1 Bal. 31 12 2.45 <3.0 <1.0 <3.0 <2.0 <1.0 W73001 (SF)A 5.13 51–56
ECoCr-C
Stellite™ alloy 6 Bal. 29 4 1.2 <3.0 <1.0 <3.0 <2.0 <1.0 W73006 (SF)A 5.13 39–43
ECoCr-A
Stellite™ alloy 12 Bal. 30 8 1.55 <3.0 <1.0 <3.0 <2.0 <1.0 W73012 (SF)A 5.13 45–50
ECoCr-B

Stellite™ alloy 20 Bal. 32 16 2.45 <3.0 <1.0 <3.0 <2.0 <1.0 — — 53–57

Stellite alloy 21
™
Bal. 28 — 0.25 3 5.5 <3.0 <1.5 <1.0 W73021 (SF)A 5.13 28–40*
ECoCr-E

Stellite™ alloy 25 Bal. 20 14 0.1 10 <1.0 <3.0 <1.0 <1.0 — — 20–45*

Stellite™ alloy 706 Bal. 30 — 1.2 <3.0 4 <3.0 <1.0 <1.0 — — 39–44

Stellite™ alloy 712 Bal. 30 — 1.55 <3.0 8 <3.0 <2.0 <1.0 — — 46–51

ULTIMET™ ** Bal. 26 2 0.06 9 5 3 — <1.0 — — 28–45*

NICKEL-BASED ALLOY ELECTRODES

Nistelle alloy C
™
— 17 5 0.1 Bal. 17 6 — 0.3%V W80002 — 17–27*

4 Nominal analysis is a guideline only for standard product. Does not include all incidental elements and may differ depending on the exact specification/standard used when ordering.
5 When written certification to a standard is required, please specify this when ordering. Certain products can also be certified to AMS, SAE, and other standards. Please contact us for more details.
6 Undiluted weld metal.

Electrodes are available in these standard diameters:

• 2,6mm (3/32") (special order)
• 3,2mm (1/8")
• 4,0mm (5/32")
• 5,0mm (3/16")
• 6,4mm (1/4")
Electrodes are supplied in lengths of 350mm (14”) and are boxed in 5.0 kg (11 lb) boxes.
Depending upon the process parameters, the hardness of the welded deposit can vary from the values provided in the table above.

* Depending upon the degree of cold-working

**ULTIMET™ is a registered trademark of Haynes International.

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Stellite Alloys
MIG Weld Deposition, Submerged Arc Welding

MIG Weld Deposition, Submerged Arc Welding

In these arc welding processes, consumable hardfacing
wire is fed continuously from a spool through the welding
torch into the arc, where it is melted and transferred to
the workpiece.

In the case of MIG welding, also known as Gas Metal Arc

Welding (GMAW), the weld pool is protected from the
atmosphere by a stream of shielding gas. The MIG process Wire-Feed Mechanism
is very flexible — it can be partially or fully mechanised
and is suitable for a wide range of applications.
Stellite™ Wire
Wire is also used as the hardfacing consumable in the
Submerged Arc Welding (SAW) process. In this process, a
mineral-based fluxing powder flows around the consumable
wire and is melted by the arc. It forms a gaseous shield
around the arc and also forms a slag on top of the weld
pool, shielding the cooling weld pool from the atmosphere.

Contact Tube Shielding Gas Nozzle

Arc

Shielding Gas

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 Stellite Alloys
MIG Weld Deposition, Submerged Arc Welding

MIG Weld Deposition

NOMINAL ANALYSIS OF UNDILUTED WELD METAL7 ASME/ Hardness

ALLOY Others UNS
Co Cr W C Ni Mo Fe Si AWS8 (HRC)9
COBALT-BASED ALLOY CORED WIRE
Stellite™ alloy 1 Bal. 28 11.5 2.45 <3.0 <1.0 <5.0 <2.0 <1.0 W73031 (SF)A 5.21 50–55
ERCCoCr-C
Stellite™ alloy 6 Bal. 30 4.5 1.2 <3.0 <1.0 <5.0 <2.0 <1.0 W73036 (SF)A 5.21 38–44
ERCCoCr-A
Stellite™ alloy 12 Bal. 29 8 1.55 <3.0 <1.0 <5.0 <2.0 <1.0 W73042 (SF)A 5.21 45–50
ERCCoCr-B
Stellite™ alloy 21 Bal. 28 — 0.25 3 5.2 <5.0 <1.5 <1.0 W73041 (SF)A 5.21 28–40*
ERCCoCr-E

Proprietary crack-resistant
Stellite™ alloy 21 LC Bal. 26 — 0.1 4 6.0 <5.0 <1.5 <1.5
alloy specially developed for 25–40*
hardfacing of forging dies

Stellite™ alloy 25 Bal. 20 14 0.1 10 <1.0 <3.0 <1.0 <1.0 — — 20–45*

Stellite™ alloy 706 Bal. 31 — 1.2 <3.0 4 <3.0 <1.0 <1.0 — — 39–44

Stellite™ alloy 712 Bal. 31 — 1.55 <3.0 8 <3.0 <2.0 <1.0 — — 46–51

ULTIMET™ ** Bal. 26 2 0.06 9 5 3 — <1.0 R31233 — 28–45*

7 Nominal analysis is a guideline only for standard product. Does not include all incidental elements and may differ depending on the exact specification/standard used when ordering.
8 When written certification to a standard is required, please specify this when ordering. Certain products can also be certified to AMS, SAE, and other standards. Please contact us for more details.

Electrodes are available in these standard diameters:

• 1,2mm (0.045") — supplied in 15 kg (33 lb) spools
• 1,6mm (0.062") — supplied in 15 kg (33 lb) spools
• 2,4mm (0.093") — supplied in 15 kg (33 lb) or 20kg (44lbs) spools
• 3,2mm (0.126") (special order) — supplied in 15 kg (33 lb) or 20kg (44lbs) spools
Depending upon the process parameters, the hardness of the welded deposit can vary from the values provided in the table above.
* Depending on the degree of_cold working.
**ULTIMET™ is a registered trademark of Haynes International.

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Stellite Alloys
PTA & Laser Weld Deposition

Plasma Transferred Arc (PTA) Weld Deposition

The PTA process is easily automated, providing a high
degree of reproducibility of the weld overlays. In addition,
because of the highly concentrated heat source, this
process benefits from high powder utilization and can
achieve a very low level of iron dilution in the overlay. Tungsten Electrode

Because the hardfacing materials are in powder form, it is

possible to produce overlays from many different materials
and combinations of materials with a wide range of
hardness and other properties.

Plasma Gas Nozzle

Powder Nozzle

Shielding Gas Nozzle Water Cooling

Stellite™ Powder

Shielding Gas Arc

Kennametal manufactures fit-for-purpose PTA equipment packages.

Please see contact information on page 25 for any questions or requests.

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 Stellite Alloys
PTA & Laser Weld Deposition

Laser Weld Deposition

When overlaying with a laser, an optical arrangement is
used to focus the laser beam on the workpiece and heat it.
Simultaneously, hardfacing material in the form of powder or
wire is introduced into the laser beam and melted. Due to the
narrow heat-affected zone and the fast cooling rate, the heat
input is low, thereby producing an almost stress-free overlay.

Compared with other welding processes, for a given

hardfacing alloy, the fast cooling rate of the laser process
produces an overlay with a significantly higher hardness
and finer microstructure. Shielding Gas Nozzle

Laser Head

Shielding Gas Nozzle

Powder Nozzle
Laser Light

Shielding Gas

Stellite™ Powder

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Stellite Alloys
PTA & Laser Weld Deposition

PTA Weld Deposition

NOMINAL ANALYSIS OF POWDER1 Hardness

ALLOY Others UNS
Co Cr W C Ni Mo Fe Si (HRC)2
COBALT-BASED ALLOY (GAS-ATOMIZED POWDERS)
Stellite™ alloy 1 Bal. 30 13 2.5 <2.0 <1.0 <2.0 <2.0 <1.0 R30001 51–60

Stellite alloy 4
™
Bal. 30 13.5 0.7 <2.5 <1.0 <2.5 <1.0 <1.0 R30404 40–50

Stellite™ alloy 6 Bal. 28.5 4.6 1.2 <2.0 <1.0 <2.0 <2.0 <1.0 R30106 40–46

Stellite™ alloy 6LC Bal. 29 4.5 1.1 <2.0 <1.0 <2.0 <2.0 <1.0 — 38–44

Stellite™ alloy 6HC Bal. 28.5 4.6 1.35 <2.0 <1.0 <2.0 <2.0 <1.0 — 43–53

Stellite™ alloy 156 Bal. 28 4 1.7 <2.0 <1.0 <0.5 <2.0 <1.0 — 46–54

Stellite alloy 12
™
Bal. 30 8.5 1.45 <2.0 <1.0 <2.0 <2.0 <1.0 R30012 43–53

Stellite alloy 20
™
Bal. 32.5 17.5 2.55 <2.0 <1.0 <2.0 <1.0 <1.0 — 52–62

Stellite alloy 21
™
Bal. 27.5 — 0.25 2.6 5.4 <2.0 <2.0 <1.0 R30021 27–40 *

Stellite alloy 22
™
Bal. 28 — 0.30 1.5 12 <3.0 <2.0 <0.5 — 41–49 *

Stellite™ alloy 25 Bal. 20 15 0.1 10 <1.0 2 <1.0 1.9%Mn — 20–45 *

Stellite alloy 31
™
Bal. 26 7.5 0.5 10.5 <1.0 <2.0 <1.0 <0.5 R30031 20–35 *

Stellite™ alloy F3 Bal. 26 12.5 1.8 22 <1.0 <2.0 1.1 <0.5 R30002 40–45

Stellite™ alloy 190 Bal. 26 14 3.4 <2.0 <1.0 <2.0 <1.0 <1.0 R30014 55–60

Stellite™ alloy 694 Bal. 28.5 19.5 0.9 5 — <3.0 <1.0 1%V — 46–52

Stellite™ alloy 706 Bal. 29 — 1.25 <2.0 4.5 <2.0 <1.0 <1.0 — 39–44

Stellite™ alloy 712 Bal. 29 — 2.0 <2.0 8.5 <2.0 <1.0 <1.0 — 46–53

ULTIMET ** ™
Bal. 26 2 0.07 9.4 5 3 <1.0 <1.0 R31233 20–45 *

COBALT-BASED TRIBALOY™ ALLOYS (GAS-ATOMIZED POWDERS)

Tribaloy™ alloy T-400 Bal. 8.5 — <0.08 <1.5 29 <1.5 2.8 <1.0 R30400 51–57

Tribaloy alloy T-400C

™
Bal. 14 — <0.08 <1.5 27 <1.5 2.6 <1.0 — 51–57

Tribaloy alloy T-401

™
Bal. 17 — 0.2 <1.5 22 <1.5 1.3 <1.0 — 45–50

Tribaloy alloy T-800

™
Bal. 17 — <0.08 <1.5 29 <1.5 3.7 <1.0 — 53–61

Tribaloy alloy T-900

™
Bal. 18 — <0.08 16 23 <1.5 2.8 <1.0 — 48–55

NICKEL-BASED SUPERALLOYS (GAS-ATOMIZED POWDERS)

Nistelle™ alloy C — 17 4.5 0.1 Bal. 17 6 <1.0 0.3%V — 17–27 *

Nistelle™ alloy C22 <2.0 21.5 3 — Bal. 13.5 4 — 0.15%V —

Nistelle™ alloy C276 — 15.5 3.7 — Bal. 16 5.5 <1.0 0.15%V —

Nistelle alloy 305

™
— 42 — — Bal. — — 0.5 <1.0% —

Nistelle alloy 2315

™
— 20 — — Bal. — — <1.0 <1.0% —

Nistelle™ alloy 600 — 15.5 — — Bal. — 8 <0.5 <1.0% N06600

Nistelle alloy 625

™
— 21.5 — <1.0 Bal. 9 <1.0 <0.5 3.5% Nb N06625

Nistelle alloy 718

™
<2.0 21.5 3 — Bal. 13.5 4 — 0.15%V N07718

1 Nominal analysis is a guideline only for standard product. Does not include all incidental elements and may differ depending on the exact specification/standard used when ordering.
2 Undiluted weld metal.
3 Stellite™ Alloy F usually made to customer specification.
* Depending upon the degree of work hardening.
**ULTIMET™ is a registered trademark of Haynes International.

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 Stellite Alloys
PTA & Laser Weld Deposition

Laser Weld Deposition

NOMINAL ANALYSIS OF POWDER1 Hardness

ALLOY Others UNS
Co Cr W C Ni Mo Fe Si (HRC)2
NICKEL-BASED ALLOY (GAS-ATOMIZED POWDERS)
Deloro™ alloy 22 — — — <0.05 Bal. — <1.0 2.5 1.4%B — 20–22

Deloro alloy 30
™
— 9 — 0.2 Bal. — 2.3 3.2 1.2%B — 27–31

Deloro™ alloy 38 — — — 0.05 Bal. — 0.5 3.0 2.1%B — 35–39

Deloro™ alloy 40 — 7.5 — 0.3 Bal. — 2.5 3.5 1.7%B N99644 38–42

Deloro™ alloy 45 — 9 — 0.35 Bal. — 2.5 3.7 1.9%B — 44–47

Deloro™ alloy 46 — — — 0.05 Bal. — — 3.7 1.9%B — 32–40

Deloro alloy 50
™
— 11 — 0.45 Bal. — 3.3 3.9 2.3%B N99645 48–52

Deloro alloy 55
™
— 12 — 0.6 Bal. — 4.0 4.0 2.7%B — 52–57

Deloro alloy 60
™
— 15 — 0.7 Bal. — 4.0 4.4 3.1%B N99646 57–62

Extrudalloy 50 15 21 — 1.3 Bal. 6 <1.0 3.0 2.3%B — —

NICKEL-BASED TRIBALOY ALLOYS (GAS-ATOMIZED POWDERS)

®

Tribaloy™ alloy T-700 <1.5 16 — 0.08 Bal. 32 <1.5 3.4 <1.0 — 45–52

IRON-BASED HARDFACING ALLOYS (GAS-ATOMIZED POWDERS)

Delcrome™ 90
27 — 2.9 — — Bal. <1.0 0.5%Mn — Depends on
—
heat treatment

Delcrome™ 92 <0.5 <1.0 — 3.8 <1.0 10 Bal. <1.0 <1%Mn — 55–63

Delcrome 253
™
<0.5 28 — 1.9 16.5 4.5 Bal. 1.3 0.8%Mn —

Delcrome 316
™
<0.5 17 — 0.05 11 2.6 Bal. 2.5 0.4%Mn — <180 DPH
Delcrome™ 316L <0.5 18 — <0.03 13 2.6 Bal. 1.8 0.7%Mn — <180 DPH
Delcrome™ 317
Delcrome™ 6272 <0.5 25 — 2.5 14 7 Bal. 1.8 <1.0% —

CARBIDES IN A CORROSION-RESISTANT HARD ALLOY MATRIX

Super Stelcar alloy 9365
™
WC in an alloy matrix

Super Stelcar™ alloy 50 plus WC in a Deloro™ 50 alloy matrix

Super Stelcar™ alloy 60 plus WC in a Deloro™ 60 alloy matrix

1 Nominal analysis is a guideline only for standard product. Does not include all incidental elements and may
differ depending on the exact specifications/standard used when ordering.
2 Undiluted weld metal.

PTA and laser hardfacing powders are available in these standard powder particle size ranges and custom sizes upon request.

Depending upon the process parameters and extent of dilution, the hardness of the weld deposit may vary
from that provided in the above table.

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Stellite Alloys
Plasma Spray & HVOF Deposition

Plasma Spraying
In the Plasma Spraying process, powder is softened or
melted in the plasma gas stream, which also transfers the
particles to the workpiece.

The plasma arc is not transferred to the workpiece, it

is contained within the plasma torch between an axial
electrode and a water-cooled nozzle. The process is
operated in normal atmosphere, in a shielding gas stream
(e.g., argon), in a vacuum, or under water.

Due to the high temperature of the plasma gas stream, the

plasma spray process is especially suitable for spraying
high melting-point metals as well as their oxides. Powder Delivery

Plasma Gas Delivery

Powder

Flame

Electrode

Water Cooling

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 Stellite Alloys
Plasma Spray & HVOF Deposition

High-Velocity Oxy-Fuel Spray (HVOF)

In the HVOF process, powder is introduced axially into a
chamber in which a gas flame is constantly burning under
high pressure. The exhaust gas exits through an expansion
nozzle which produces a high-velocity gas stream. The
powder particles are heated in this gas stream and
transferred by it with high kinetic energy to the surface
of the workpiece, forming a dense coating with excellent
bonding properties.

Due to the moderate transfer of heat to the powder

particles and to the workpiece, which remains relatively
cool, there is little metallurgical change to the sprayed Powder Delivery
material and the workpiece.

Spray Nozzle

Flame

Water Cooling

Fuel Gas Delivery

Kennametal manufactures fit-for-purpose Jet Kote™ HVOF equipment packages.

Please see contact information on page 25 for any questions or requests.

kennametal.com/stellite 15
Stellite Alloys
HVOF & Plasma Spray Deposition

Tungsten Carbide HVOF Powders

NOMINAL COMPOSITION (mass %) HARDNESS Nominal size (μm) and

PRODUCT POWDER TYPE (depends on deposition method manufacturing method
Co Ni Cr W C & parameters)

JK™ 112H WC-12Co 12 — — Bal. 5.5 1140–1296 DPH 53/10

with fine carbides 92.7–94.6 R15N Agglomerated, sintered & densified.

JK™ 112P / JK™ 7112 WC-12Co 12 — — Bal. 5.5 960–1150 DPH 45/10
with fine carbides 89–93 R15N Agglomerated, sintered & densified.
(equiv. to HRC: ~67–71)

JK™ 114 / JK™ 7114 WC-12Co 12 — — Bal. 4 1000–1150 DPH 45/10

with coarse carbides 87–94 R15N Agglomerated, sintered & crushed.
(equiv. to HRC: ~68–71)

JK™ 117 / JK™ 7117 WC-17Co 17 — — Bal. 5.2 960–1240 DPH 53/15
with intermediate carbides 90–95 R15N Agglomerated & sintered.
(equiv. to HRC: ~67–72)

JK™ 119 WC-9Co 9 — Bal. 4.2 860–1170 DPH 45/5

with coarse carbides — 89–94 R15N Sintered & crushed, blocky.
(equiv. to HRC: ~65–71)

JK™ 120H / JK™ 7109 WC-10Co-4Cr 10 — 4 Bal. 5.4 1160–1370 DPH 45/5
93–95 R15N Agglomerated, sintered & densified.
(equiv. to HRC: ~71–73)

JK™ 120P / JK™ 7109 WC-10Co-4Cr 10 — 4 Bal. 5.4 825–1030 DPH 53/10
89–91 R15N Agglomerated, sintered & densified.
(equiv. to HRC: ~65–71)

JK™ 125 / JK™ 7178 A mixed carbide with 6 20 Bal. 5 900–1100 DPH 53/10
nickel 70%(W, Cr)xCy — 89–92 R15N Agglomerated sintered & densified.
25%WC 6%Ni (equiv. to HRC: ~66–70)

JK™ 6189 WC 10Ni — 10 — Bal. 3.7 Not available 53/10

with large carbides Sintered & crushed.

Chromium Carbide HVOF Powders

NOMINAL COMPOSITION (mass %) HARDNESS Nominal size (μm) and
PRODUCT POWDER TYPE (depends on deposition method manufacturing method
Ni Cr C & parameters)

JK™ 135 / JK™ 7184 75% Cr3C2 20 Bal. 9.7 610–910 DPH 53/10
25% NiCr 87.5–91.5 R15N Agglomerated, sintered & densified.
(equiv. to HRC: ~58–65)
(varies srongly depending on spray parameters)

16 kennametal.com/stellite
 Stellite Alloys
HVOF & Plasma Spray Deposition

Gas-Atomized StelliteTM Cobalt-Based HVOF & Plasma Spray Powders

STELLITE™ NOMINAL COMPOSITION (mass %) HARDNESS Nominal

PRODUCT
ALLOY NO. Co Ni Cr W Mo C Others
(depends on deposition method
& parameters)
size (μm)

JK™ 571 / JK™ 7221 21 Bal. 2.5 28 — 5.5 0.25 Si 2 400–520 DPH 53/10
80.5–84.5 R15N
(equiv. to HRC: ~40–50)

JK™ 572 / JK™ 7212 12 Bal. — 29.5 8 — 1.4 Si 1.5 680–675 DPH 53/10
88.1–89.5 R15N
JK™ 573 / JK™ 7231 31 Bal. 10.5 25.5 7.5 — 0.5 — 32 HRC 45/10

JK™ 575 / JK™ 7201 1 Bal. — 30 12 — 2.5 — Not available 53/10

JK™ 576 / JK™ 7206 6 Bal. — 28 4.5 — 1.1 Si 1.1 495–580 DPH 53/10
81.5–86.5 R15N
(equiv. to HRC: ~43–54)

JK™ 577 SF6 Bal. 14.5 19 7.5 — 0.7 Si 2.5 635–790 DPH 53/10
B 1.6 (505-525 when fused) ~ 85.5 R15N
(equiv. to HRC: ~50–51)

JK™ 579 / JK™ 7225 25 Bal. 10 20 15 1 0.1 Si 1 450–490 DPH 53/10

Mn 1.5 82–85.5 R15N
(equiv. to HRC: ~43–50)
(varies strongly depending on
spray parameters)

Gas-Atomized Tribaloy™ Cobalt-Based HVOF & Plasma Spray Powders

TRIBALOY™ NOMINAL COMPOSITION (mass %) HARDNESS Nominal

PRODUCT
ALLOY NO. Co Ni Cr W Mo C Others
(depends on deposition method
& parameters)
size (μm)

JK™ 554 / JK™ 7560 T-400 Bal. — 8.5 — 29 <0.08 Si 2.6 450–600 DPH 53/10
86–87.5 R15N
(equiv. to HRC: ~52–55)

JK™ 558H T-800 Bal. — 18 — 28 <0.08 Si 3.4 670–780 DPH 45/5

Typically used with hydrogen fuel 89–92 R15N
(equiv. to HRC: ~58–64)

JK 558P / JK 7580
™ ™
T-800 Bal. — 18 — 28 <0.08 Si 3.4 455–620 DPH 53/10
Typically used with carbon fuel 83.5–88.5 R15N
(equiv. to HRC: ~46–56)

JK™ 559H (Special order) T-900 Bal. 16 18 — 23 <0.08 Si 2.7 ~ 700 DPH 45/5

JK™ 559P (Special order) T-900 Bal. 16 18 — 23 <0.08 Si 2.7 ~ 500 DPH 53/10

ULTIMET™ for JK TM
and Plasma Spray ULTIMET™ Bal. 9 26 2 5 0.06 Si 0.3 ~ 500 DPH 53/20

*ULTIMET™ is a registered trademark of Haynes International.

kennametal.com/stellite 17
Stellite Alloys
HVOF & Plasma Spray Deposition

Gas-Atomized Nickel-Based HVOF & Plasma Spray Powders

NOMINAL COMPOSITION (mass %) HARDNESS Nominal

PRODUCT ALLOY NAME (depends on deposition method size (μm)
Ni Fe Cr W Mo C Others & parameters)

JK™ 347 Nistelle™ 2347 Bal. — — — 5 — AI 6 332–336 DPH 63/15

75.3–78.1 R15N
JK™ 350 / JK™ 7301 Nistelle™ 2350 Bal. — — — — — AI 5 285–335 DPH 63/15
71–76 R15N
JK™ 557 / JK™ 7570 Tribaloy™ T-700 Bal. — 15.5 — 32.5 <0.08 Si 3.4 ~ 700 DPH 45/10

JK™ 584 / JK™ 7640 Deloro™ 40 Bal. 2.5 7.5 — — 0.25 Si 3.5 ~ 40 HRC 53/10
B 1.7

JK™ 585 / JK™ 7650 Deloro™ 50 Bal. 2.9 11 — — 0.45 Si 4 ~ 50 HRC 53/10
B 2.3

JK™ 586 / JK™ 7660 Deloro™ 60 Bal. 4 15 — — 0.7 Si 4.4 ~ 60 HRC 53/10
B 3.1

JK™ 591H Nistelle™ C Bal. 5.5 16.5 4.5 17 — — 400–440 DPH 45/5
~ 83 R15N
(equiv. to HRC: ~44-45)

JK 591P / JK 7391
™ ™
C Bal. Nistelle™
5.5 16.5 4.5 17 — — 375–390 DPH 63/15
~ 80 R15N
(equiv. to HRC: ~39-41)

Nistelle™ Super C Nistelle™ “Super C” Bal. — 23 — 18 — — 410 DPH P: 53/15

(Jet Kote™) (equiv. to HRC: ~ 41) H: 45/10

JK™ 594 / JK™ 7392 Nistelle™ C-4C Bal. — 16 — 16.5 — — 380–440 DPH 53/15
~ 81–83 R15N
(equiv. to HRC: ~40-44)

JK™ 625 / JK™ 7342 Nistelle™ 625 Bal. <5 21.5 — 9 — (Nb+Ta) 3.7 385–460 DPH 53/20
~ 79–83 R15N
(equiv. to HRC: ~37-46)

JK™ 718 / JK™ 7341

275–470 DPH Nistelle™ 718 Bal. 18 19 — 3 0.06 (Nb+Ta) 5 45/15
AI 0.5, Ti 1
72.5–81.5 R15N
(equiv. to HRC: ~25-45)

Gas-Atomized Iron-Based HVOF Powders

POWDER NOMINAL COMPOSITION (mass %) HARDNESS Nominal

PRODUCT
TYPE Co Ni Fe Cr C Others
(depends on deposition method
& parameters)
size (μm)

JK™ 513 316 Stainless Steel — 13 Bal. 17 0.1 Mo 2.5 260–315 DPH 53/10
(Also sold as JK™ 7330) Si 1 69–75 R15N

Cobalt Based Plasma Spray Powders

POWDER NOMINAL COMPOSITION (mass %) HARDNESS Nominal

PRODUCT
TYPE Co Ni Cr W Mo C Others
(depends on deposition method
& parameters)
size (μm)

Stellite™ 157 — Bal. — 21 4.5 — <0.2 B 2.4 Not available 45/5

Si 1.5

Tribaloy™ T-400 (Not Available) T-400 Bal. — 8.5 — 29 <0.08 Si 2.6 52 HRC 45/5

Tribaloy™ T-900 (Not Available) T-900 Bal. 16 18 — 23 <0.08 Si2.7 52 HRC 75/D
53/10

18 kennametal.com/stellite
 Stellite Alloys
HVOF & Plasma Spray Deposition

Nickel-Based Plasma Spray Powders

NOMINAL COMPOSITION (mass %) HARDNESS Nominal

PRODUCT ALLOY NAME (depends on deposition method size (μm)
Ni Fe Cr W Mo C Others & parameters)

Deloro™ 55 Deloro™ 55 Bal. 4 12 — — 0.6 Si 4.0 52-57 HRC Various

B 2.7

Deloro™ 60 Deloro™ 60 Bal. 4 15 — — 0.7 Si 4.4 58-62 HRC Various

B 3.1
Nistelle™ C276 Nistelle™ C276 Bal. 5 15.5 3.8 16 — — Not Available 106/D
45/5

Nistelle™ 625 Nistelle™ 625 Bal. <5 21.5 — 9 — (Nb+Ta) 385-460 DPH Various
3.7 79-83 R15N
(equiv. to HRC: ~37-46)

Nistelle™ 2315 Nistelle™ 2315 Bal. — 20 — — — — Not Available 106/D

75/45
45/5

Nistelle™ 2350 Nistelle™ 2350 Bal. — — — — — AI 5 ~ 70 HRB 75/45

Gas-Atomized Iron-Based Plasma Spray Powders

NOMINAL COMPOSITION (mass %) HARDNESS Nominal

PRODUCT ALLOY NAME (depends on deposition method size (μm)
Co Ni Fe Cr C Others & parameters)

Delcrome™ 90 Delcrome™ 90 — — Bal. 27 2.8 Si 0.5 Not Available 53/10

Delcrome™ 92 Delcrome™ 92 — — Bal. — 3.7 Mo 10 Not Available 45/D

Delcrome™ 316L/317 316L Stainless Steel — 13 Bal. 17 0.03 Mo 2.5 ~ 180 DPH 106/38
Si 1 106/D
45/5

Tristelle™ TS-3 Tristelle™ TS-3 12 10 Bal. 35 3 Si 5 >55 HRC 45/5

Powders labelled “JK” are intended primarily for HVOF spraying with the Jet Kote™ or Diamond Jet™ torches but can also be used for plasma spraying. Some of these powders may be listed below
in different nominal size ranges for other thermal spray processes.

*Diamond Jet™ is a registered trademark of Sulzer Metco.

kennametal.com/stellite 19
Stellite Alloys
Spray and Fuse & Powder Welding

Flame Spraying with Subsequent Fusing

(Spray and Fuse)
Spray and fuse is a two-stage process, the powder alloy being This process is used for the deposition of relatively thin (0.010"
deposited first by flame spraying and then fused. During fusing, to 0.060" or 0,25 to 1,5 mm) layers, usually on the surface of
the deposit is partially remelted and allowed to resolidify. small cylindrical objects such as pump shafts, packing gland
sleeves and pistons, as an alternative to the greater deposit
In flame-spraying, the powder particles are softened or thickness obtained from oxy-acetylene and arc processes. The
melted in an oxyacetylene flame and transferred to a prepared process can also be used for the facing of flat surfaces, but its
workpiece by the expanding gases. An additional gas stream possibilities for this type of work are limited.
can be used to assist with powder particle transfer.
Since the deposit is thinner and more uniform than that
The second stage of the process, fusing the sprayed coating obtained by other welding methods and the heat for fusion is
to the workpiece, is usually done with an oxyacetylene burner. applied uniformly and rapidly, shrinkage and distortion of the
Alternatively, for mass production, fusing can be carried out by component is frequently very small. When the fusing operation
induction heating or in a vacuum furnace. is carried out correctly, dilution of the deposit by the base
metal is negligible.
The bonding of the sprayed coating to the workpiece is
significantly increased by the fusing process, which creates Powder Hopper
metallurgical bonds between the powder particles and also
between the coating and the workpiece. The coating becomes
liquid and gas tight.

Powder Delivery

Flame

Fuel Gas Delivery

20 kennametal.com/stellite
 Stellite Alloys
Spray and Fuse & Powder Welding

Powder Welding
A specially-designed oxy-acetylene torch is used for
powder welding. The workpiece is heated with the torch,
powder is introduced into the gas stream from the integral
powder hopper, and transferred to the workpiece through
the flame.

The powder-weld process is ideal for the deposition of Powder Hopper

smooth, thin, well-bonded layers on flat surfaces on a wide
range of substrates, including cast iron. The hardfacing
takes place at lower temperatures, which minimizes
oxidation and distortion of the workpiece and enables easy
surfacing of edges.

Powder Delivery

Fuel Gas Delivery

Torch Tip

Flame

kennametal.com/stellite 21
Stellite Alloys
Spray and Fuse & Powder Welding

Spray and Fuse & Powder Welding

NOMINAL ANALYSIS OF WELDING ROD1 Hardness

ALLOY Others
Co Cr W C Ni B Fe Si (HRC)2
COBALT-BASED ALLOYS (GAS-ATOMIZED POWDERS)
Stellite alloy SF1
™
Bal. 19 13 1.3 13.5 2.45 3 2.8 <0.5%Mn 50–60

Stellite™ alloy SF6 Bal. 19 7.5 0.8 14 1.7 3 2.6 <0.5%Mn 40–48

Stellite™ alloy SF12 Bal. 19 9 1.1 14 1.9 3 2.8 <0.5%Mn 42–52

Stellite™ alloy SF20 Bal. 19 15 1.6 14 2.9 3 3.2 <0.5%Mn 55–65

Stellite™ alloy 157 Bal. 21 4.5 0.1 <2.0 2.5 <2 1.6 <0.5%Mn 45–55

NICKEL-BASED ALLOYS (GAS-ATOMIZED POWDERS)

Deloro™ alloy 15 – – – <0.05 Bal. 1.1 0.5 2.0 20%Cu 180–230 DPH

Deloro™ alloy 21 – 3 – <0.05 Bal. 0.8 <0.5 2.1 2.2% 240–280 DPH

Deloro™ alloy 22 – – – <0.05 Bal. 1.4 <1.0 2.5 – 18–24

Deloro™ alloy 25 – – – <0.06 Bal. 1.7 <1.0 2.7 – 22–28

Deloro™ alloy 29 – 3 – <0.05 Bal. 0.9 <0.5 2.2 2.2% 27–30

Deloro™ alloy 30 – 9 – 0.2 Bal. 1.2 2.3 3.2 – 29–39

Deloro alloy 34
™
– 4.5 – 0.15 Bal. 1.2 0.3 2.8 2.5%Mo 33–37
2.2% Other

Deloro™ alloy 35 – 4 – 0.4 Bal. 1.6 1.5 3.4 – 32–42

Deloro™ alloy 36 – 7 – 0.3 Bal. 1.2 3 3.7 – 34–42

Deloro™ alloy 38 – – – 0.05 Bal. 2.1 0.5 3.0 – 35–42

Deloro™ alloy 40 – 7.5 – 0.3 Bal. 1.7 2.5 3.5 – 38–45

Deloro™ alloy 45 – 9 – 0.35 Bal. 1.9 2.5 3.7 – 42–50

Deloro™ alloy 50 – 11 – 0.45 Bal. 2.3 3.3 3.9 – 47–53

Deloro™ alloy 55 – 12 – 0.6 Bal. 2.7 4.0 4.0 – 52–60

Deloro™ alloy 60 – 15 – 0.7 Bal. 3.1 4.0 4.4 – 57–65

Deloro alloy 75
™
– 17 – 0.9 Bal. 3.5 4.5 4.5 2%Cu 53–63
3%Mo

Deloro™ alloy 6116 – 15.3 – 0.03 Bal. 4.0 – – – –

Depending upon the process parameters and extent of dilution, the hardness of the weld deposit may vary from that provided in the above table.

22 kennametal.com/stellite
 PRODUCTIVE
INNOVATIVE
ADVANCED
OUR MISSION
Kennametal delivers productivity to customers
seeking peak performance in demanding
environments by providing innovative customized
and standard wear-resistant solutions, enabled
through our advanced materials sciences,
application knowledge, and commitment to
a sustainable environment.

23
 SUSTAINABLE ENGINEERING
With decades of experience, Kennametal offers you some of the most
effective opportunities for sustainable manufacturing in the industry
using the synergies of superior engineering, leading technology,
and tailor-made solutions. Our comprehensive range of products,
local support, and excellent customer service make Kennametal
your complete supplier of sustainable tooling solutions.

Successful project engineering requires planning, Kennametal can provide your engineering teams
teamwork, and disciplined execution. Through our and machine tool builders with process engineering
extensive experience in developing and implementing support, advanced metalcutting technologies, and
new project engineering strategies, Kennametal project management expertise to help you achieve
has pioneered a proven methodology to help you your sustainability goals. With our best-in-class process,
manufacture new products and bring them to market you’ll experience accelerated time-to-market, lower
quickly. Service deliverables are carefully outlined and overall costs, and reduced risks to implement new
jointly agreed to before the project begins. We formally technologies.
evaluate progress and results with you throughout the
project through our stage-gate management system.

24 kennametal.com/stellite
STELLITE
ALLOYS
For customer service or
to place an order contact:

A MER I CA S S A L ES O F F I CE
Kennametal Stellite
1201 Eisenhower Drive N
Goshen, Indiana 46526
USA
Phone: +1 574 534 2585
Fax: +1 574 534 3417
Email: k-gshn.service@kennametal.com

kennametal.com/stellite
W O R LD HE AD QU ARTE RS
Kennametal Inc.
1600 Technology Way
Latrobe, PA 15650
USA
Tel: 1 800 446 7738
E-mail: ftmill.service@kennametal.com

EUR O PEA N HE AD QU ARTE RS

Kennametal Europe GmbH
Rheingoldstrasse 50
CH 8212 Neuhausen am Rheinfall
Switzerland
Tel: +41 52 6750 100
E-mail: neuhausen.info@kennametal.com

A SIA -PA C IFIC HE AD QU ARTE RS

Kennametal Singapore Pte. Ltd.
3A International Business Park
Unit #01-02/03/05, ICON@IBP
Singapore 609935
Tel: +65 6265 9222
E-mail: k-sg.sales@kennametal.com

INDIA H EA D QU ARTE RS
Kennametal India Limited
CIN: L27109KA1964PLC001546
8/9th Mile, Tumkur Road
Bangalore - 560 073
Tel: +91 080 22198444 or +91 080 43281444
E-mail: bangalore.information@kennametal.com

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