Thermal Spray Wire

Polymet manufactures the highest quality wire in the world for both twin wire arc spray and flame spray operations. Polymet produces over 35 alloys for thermal spray applications. Below is a full list of Thermal Spray Wire offered by Polymet.

PMET # Competitor equivalents Description
PMET 50 Tafa 35 MXC Fe Al
PMET 223 Tafa 98 MXC LCr Carbide
PMET 226  Metco 8222 HCr Carbide
PMET 270 Tafa 90MXC Amorphous Alloy
PMET 273 Tafa 95 MXC Fe Cr B Si
PMET 296 Armacor 16 Fe Cr Ni B
PMET 297 Duocor Tungsten Carbide

PMET 50

IRON ALUMINUM THERMAL SPRAY WIRE

Characteristics and Composition

PMET 50 (Fe-Al) is an iron aluminum cored wire specifically designed for arc spray systems. It produces a well bonded coating with high hardness. It has the unique ability to produce either smooth or very rough profile coatings for non-slip applications. PMET 50 coatings have excellent machinability. Typical applications include non-slip coatings for walkways and stairs, gripping rolls and bond coats.

Equivalent to:

TAFA 35MXC

Rockwell Hardness 30-35 C   Diameter (in)-1/16, (mm)-1.6

FeAlCMn
Bal5.52.00.8

PMET 223

Characteristics and Composition

PMET 223 is a cored wire specifically designed for arc spray systems. It produces a hard, well bonded coating that is abrasive and corrosion resistant. PMET 223 can be easily machined with carbide tools, yielding a smooth, low coefficient of friction surface finish, suitable for a number of applications.

Equivalent to:

TAFA 98MXC

Rockwell Hardness 35-40 C   Diameter (in)-1/16, (mm)-1.6

CrNiCMnSiMo
Fe
26.03.01.71.61.60.8Bal

PMET 226

Characteristics and Composition

PMET 226 is a cored wire specifically designed for arc spray systems. It produces a hard, well bonded coating that is abrasive and corrosion resistant. PMET 226 can be easily machined with carbide tools, yielding a smooth, low coefficient of friction surface finish, suitable for a number of applications.

Equivalent to:

Sulzer Metco 8222

Rockwell Hardness 55-60 HRC   Diameter (in)-1/16, (mm)-1.6

CrSiCMnFe
28.01.05.01.0Bal

PMET 270

Characteristics and Composition

PMET 270 is a cored wire specifically designed for arc spray systems. It produces a partially amorphous, hard, abrasive and corrosion resistant coating, with a service environment up to 1600 degrees F. High chrome like finishes can be obtained by typical grinding and lapping techniques. PMET 270 has found use in a wide variety of high wear applications, anti-skid surfacing applications, and corrosive environments. The addition of 9% nickel gives it greater corrosion resistance than PMET 273 for most environments.

Equivalent to:

TAFA 90 MXC

Rockwell Hardness 45-50 C   Diameter (in)-1/16, (mm)-1.6

CrNiMoBCuMnSiFe
23.09.04.02.32.01.31.0Bal

PMET 273

Characteristics and Composition

PMET 273 is a cored wire specifically designed for arc spray systems. It produces a partially amorphous, hard, abrasive and corrosion resistant coating, with a service environment up to 1700° F. High chrome like finishes can be obtained by typical grinding and lapping techniques. PMET 273 is used in a wide variety of high wear applications, anti-skid surfacing applications and corrosive environments.

Equivalent to:

TAFA 95 MXC

Armacor M

Rockwell Hardness 55-60 C   Diameter (in)-1/16″ (1.6mm)

CrBMnSiFe
29.03.71.74.6Bal

PMET 296

Characteristics and Composition

PMET 296 is a cored wire specifically designed for arc spray systems. It produces a partially amorphous, hard, abrasive and corrosion resistant coating, with a service environment of up to 1700° F. High chrome like finishes can be obtained by typical grinding and lapping techniques. PMET 296 has found use in a wide variety of high wear applications, anti-skid surfacing applications, and corrosive environments.

Equivalent to:

TAFA 95MXC

Armacor 16

Rockwell Hardness 50-55 C   Diameter (in)-1/16, (mm)-1.6

CrNiMoBSiCuMnFe
23.06.03.52.52.02.01.0Bal

PMET 297

Characteristics and Composition

PMET 297 is a cored wire specifically designed for arc spray systems. It is a titanium and tungsten carbide alloy in an amorphous matrix. PMET 297 produces a hard, abrasion and corrosion resistant coating, with a service environment of up to 1000° F. PMET 297 is used in a wide variety of industrial high wear applications.

Equivalent to:

TAFA 97 MXC

Sulzer Metco Duocor

Rockwell Hardness 60-65 C   Diameter (in)-1/16, (mm)-1.6

WCCrTiCNiBSiFe
26.0136.06.02.01.0Bal
PMET # Competitor equivalents DEscription
PMET 590 Tafa 10T, Sprabronze AA Al Bronze
PMET 599 Tafa 05T Copper

PMET 590

Characteristics and Composition

PMET 590 is specifically designed for spraying in arc spray or flame spray systems. It produces extremely well-bonded coatings with excellent machinability. PMET 590 has good corrosion resistance, along with good resistance to mechanical and thermal shock. It is particularly applicable to bond coats and machine element restoration work.

Equivalent to:

TAFA 10T

Sulzer Metco Sprabronze AA

Rockwell Hardness 62-68 B   Diameter (in)-1/16, 1/8, (mm)-1.6, 3.2

AlFeCu
Bal1.5 maxBal

PMET 599

Characteristics and Composition

PMET 599 is a high purity copper wire specifically designed for arc spraying. It produces dense, well bonded coatings with excellent machinability. It is widely used for electrical conductivity and printing roll applications.

Rockwell Hardness 35-40 B   Diameter (in)-1/16, 1/8

Cu
98.0
PMET # COmpetitor equivalents descriptions
PMET 692 Tafa 01S, Metco SF Al 6Si
PMET 699 Tafa 01T, Metco Al Aluminum

PMET 692

Characteristics and Composition

PMET 692 is a solid wire specifically designed for arc spray systems. It produces dense, well bonded coatings with excellent machinability. PMET 692 exhibits higher hardness and density than coatings produced with pure aluminum. PMET 692 is used for dimensional restoration of aircraft engine parts and other aluminum based components.

Equivalent to:

TAFA 01S

Sulzer Metco SF

Rockwell Hardness 70-75 B   Diameter (in)-1/16, 1.6

SiAl
4.5-6.0Bal

PMET 699

Characteristics and Composition

PMET 699 is a 99.5% pure aluminum wire specifically designed for thermal spraying. It produces dense, well bonded coatings with excellent corrosion resistance, electrical conductivity and machinability. PMET 699 is used widely for atmospheric and immersion corrosion applications, electrical conductivity applications and dimensional restoration of aluminum based components.

Equivalent to:

TAFA 01T

Sulzer Metco Al

Rockwell Hardness 60-65 B   Diameter (in)-1/16, 1/8, (mm)-1.6, 3.2

Al
99.5
PMET # COMPETITOR EQUIVALENTS DESCRIPTION
PMET 709 Tafa 30T LC Steel
PMET 710 Tafa 80T 304 SS
PMET 714 Tafa 38T, Spraysteel 80 HC Steel
PMET 718 Spraysteel LS Low Shrink Steel
PMET 720 Tafa 60T, Metcoloy 2 420 SS
PMET 723 Tafa 55T, Metcoloy 5 18 5 SS
PMET 730 Tafa 88T, Metcoloy 4 316 SS
PMET 731 Tafa Alcro Fe Cr Al

PMET 709

Characteristics and Composition

PMET 709 is a carbon steel wire, copper coated and specifically designed for arc spraying. It produces dense, well bonded coatings with excellent wear resistance, and is widely used for machine element repair, dimensional restoration and wear resistant applications. PMET 709 low shrink characteristics allow for increased coating thickness.

Equivalent to:

TAFA 30T

Rockwell Hardness 95-105 B   Diameter (in)-1/16, (mm)-1.6

AlSiCFe
0.80.20.15Bal

PMET 710

Characteristics and Composition

PMET 710 is a 304 stainless steel wire specifically designed for arc spraying. It produces a dense, well-bonded coating with excellent machinability and wear and corrosion resistance. PMET 710 is widely used for machine element repair, dimensional restoration and wear resistance applications. It has relatively high shrink characteristics and should not be used for coatings over 0.075 inches thick.

Equivalent to:

TAFA 80T

Rockwell Hardness 90-100 B   Diameter (in)-1/16, (mm)-1.6

CrNiMnSiFe
19.09.32.01.0Bal

PMET 714

Characteristics and Composition

PMET 714 is a solid wire specifically designed for flame spraying. It produces a hard, machinable deposit with low shrink, making it ideal for dimensional restoration of parts where thick build-up is required.

Equivalent to:

TAFA 38T

Sulzer Metco Sprasteel 80

Rockwell Hardness 20-25 C   Diameter (in)-1/16, (mm)-1.6

CMnSiFe
0.80.70.3Bal

PMET 718

Characteristics and Composition

PMET 718 is a solid wire specifically designed for flame spraying. It produces a hard, machinable deposit with low shrink, making it ideal for dimensional restoration of parts where thick build-up is required.

Equivalent to:

Sulzer Metco Sprasteel LS

Rockwell Hardness 30-35 C   Diameter (in)-1/8, (mm)-3.2

CrMoMnSiCNiFe
1.51.32.30.10.044.5Bal

PMET 720

Characteristics and Composition

PMET 720 is a 420 stainless steel wire, specifically designed for arc spray processes. PMET 720 forms a dense, well bonded coating, with excellent wear resistance and good corrosion resistance. It is widely used for machine elements repair, dimensional restoration, and wear resistant application. PMET 720’s low shrink rate characteristics allows for increased coating thickness on parts requiring heavier coatings.

Equivalent to:

TAFA 60T

Sulzer Metco Metcoloy 2

Rockwell Hardness 40-45 C   Diameter (in)-1/16, 1/8, (mm)-1.6, 3.2

CrSiMnCFe
13.01.01.00.3Bal

PMET 723

Characteristics and Composition

PMET 723 is an 18/5 stainless steel wire specifically designed for arc spraying. It produces dense, well-bonded coatings with excellent machinability and wear and corrosion resistance. PMET 723 is widely used for machine element repair, dimensional restoration and wear resistance applications.

Equivalent to:

TAFA 55T

Sulzer Metco Metcoloy 5

Rockwell Hardness 90-96 B   Diameter (in)-1/16, 1/8, (mm)-1.6, 3.2

CrMnNiSiFe
188.05.00.5Bal

PMET 730

Characteristics and Composition

PMET 730 is a 316 stainless steel wire specifically designed for arc spraying. It produces a dense, well-bonded coating with excellent machinability and wear and corrosion resistance. PMET 730 is widely used for machine element repair, dimensional restoration and wear resistance applications. It has high shrink characteristics and should not be used for coatings over 0.075 inches thick.

Equivalent to:

TAFA 80T

Sulzer Metco Metcoloy 4

Rockwell Hardness 90-100 B   Diameter (in)-1/16, (mm)-1.6

CrNiMnSiMoFe
17.0122.01.02.5Bal

PMET 731

Characteristics and Composition

PMET 731 is an iron chrome aluminum alloy wire specifically designed for arc spraying. It produces dense, well-bonded coatings with excellent wear and high temperature oxidation resistance. It is widely used for machine element repair and dimensional restoration applications. PMET 731’s low shrink characteristic alloys increased coating thickness. PMET 731 is machinable.

Equivalent to:

TAFA Alcro

Rockwell Hardness 85-90 B   Diameter (in)-1/16, (mm)-1.6

CrAlMnSiFe
23.55.30.451.0Bal
PMET # Competitor equivalents DESCRIPTION
PMET 806 Tafa 06T Nickel
PMET 818 Tafa 78T, Metco 8718 Alloy 718
PMET 821 Tafa 06C Ni 20Cr
PMET 860 Tafa 71T, Metco 8625 Alloy 625
PMET 860BC Alloy 625 + Boron Carbide
PMET 876 Tafa 77T, Metco 8276 Alloy C-276
PMET 877 Tafa 70T Monel
PMET 884 Tafa 79B, Metco 405 Ni 20Al
PMET 885 Tafa 75B, Metco 8400 Ni 5Al
PMET 886 Tafa 73MXC, Metco 8443 Ni Cr Al
PMET 887 Tafa 76MXC Ni Cr Al Y
PMET 888 Tafa 74MXC, Metco 8447 Ni Mo Al
PMET 889 Tafa 45CT Ni Cr Ti

PMET 806

Characteristics and Composition

PMET 806 is a high purity nickel wire specifically designed for arc spraying. PMET 806 produces dense, well-bonded coatings with excellent machineability, electrical conductivity and corrosion resistance. It is widely used for machine element repair applications requiring high corrosion resistance.

Equivalent to:

TAFA 06T

Rockwell Hardness 55-60 B   Diameter (in)-1/16, (mm)-1.6

Ni
99.0

PMET 818

Characteristics and Composition

PMET 818 is a solid wire specifically designed for arc spray systems. It produces a self-bonding nickel-chromium-molybdenum deposit with excellent high temperature oxidation and corrosion resistance. PMET 818 can be used for dimensional restoration of parts.

GE B50TF202 specification approval

Equivalent to:

TAFA 78T

Sulzer Metco 8718

Rockwell Hardness 25-30 C   Diameter (in)-1/16, (mm)-1.6

NiCoFeCrWMoAlSi
Bal9.5143.81.63

PMET 821

Characteristics and Composition

Polymet offers a Nichrome Equivalent – PMET 821 (Ni-20Cr) in thermal spray wire form. This alloy produces dense, well bonded coatings that are resistant to high-temperature oxidation and corrosion.

Equivalent to:

TAFA 06C
Rockwell Hardness 85-95 B   Diameter (in)-1/16, (mm)-1.6

CrNi
20.0Bal

PMET 860

Characteristics and Composition

PMET 860 is a high purity nickel chrome wire specifically designed for arc spraying. It produces dense, well-bonded coatings with resistance to corrosion, and stress cracking in caustic mediums.

Equivalent to:

TAFA 71T

Sulzer Metco 8625

Rockwell Hardness 90-95 B   Diameter (in)-1/16, (mm)-1.6

NiCrMoFeCb+Ta
62.52210.02.03.5

PMET 860BC

Characteristics and Composition

CrBMoSiFeCNi
31.04.03.02.52.02.0Bal

PMET 876

Characteristics and Composition

PMET 876 is a high purity nickel-chrome-moly-tungsten (Alloy C-276) wire specifically designed for arc spraying. It produces dense, well-bonded coatings with good resistance to corrosion, and stress cracking in caustic, acidic and chloride mediums. It’s high hardness makes it very resistant to abrasion and metal wear.

Equivalent to:

TAFA 77T

Sulzer Metco 8276

Rockwell Hardness 30-40 C   Diameter (in)-1/16, (mm)-1.6

CrMoFeWNi
15.016.05.04.0Bal

PMET 877

Characteristics and Composition

PMET 877 is specifically designed for spraying in arc spray and flame spray systems. It produces well-bonded coatings with excellent machineability. PMET 877 has good corrosion resistance, especially in sea water and caustic environments.

Equivalent to:

TAFA 70T

Rockwell Hardness 80-85 B   Diameter (in)-1/16, 1/8, (mm)-1.6, 3.2

CuMnFeNi
31.031.01.7Bal

PMET 884

Characteristics and Composition

PMET 884 is a cored wire specifically designed for either arc spraying or flame spraying. It is self-bonding to most materials and requires minimal surface preparation. Bond strengths in excess of 9000 psi can be achieved on grit blasted surfaces. PMET 884 exhibits good resistance to high temperature oxidation and abrasion, and excellent resistance to impact and bending. PMET 884 can be machined and ground to a finish of 5 micro inches.

Equivalent to:

TAFA 79B

Sulzer Metco 405

Rockwell Hardness 60-80 B   Diameter (in)-1/16, 1/8, (mm)-1.6, 3.2

AlNi
20.0Bal

PMET 885

Characteristics and Composition

PMET 885 is a solid wire specifically designed for arc spray systems. It is self-bonding to most materials and requires minimal surface preparation. Bond strengths in excess of 9000 psi can be achieved on clean smooth surfaces. Roughening of the surface by machining, grit blasting or grinding can increase the bond strength up to 10,000 psi. PMET 885 exhibits good resistance to high temperature oxidation and abrasion, and excellent resistance to impact and bending. PMET 885 can be machined and ground to a finish of 5 micro inches. It is a self-bonding, one step material and is also suitable for the build-up and dimensional restoration of nickel-based alloys. PMET 885 is widely used as a bond coat for subsequent thermal spray topcoats and as a one step build up material for dimensional restoration of aircraft engines.

Equivalent to:

TAFA 75B

Sulzer Metco 8400

GE B50TF56 & PWA 36937 specification approvals

Rockwell Hardness 65-85 B   Diameter (in)-1/16, (mm)-1.6

NiAlOther
93.04.0-5.51.7 max

PMET 886

Characteristics and Composition

PMET 886 is a cored wire specifically designed for arc spray systems. It produces a self-bonding nickel-chromium-aluminum deposit with excellent high temperature oxidation and corrosion resistance. PMET 886 can be used for dimensional restoration of parts and is widely used in aircraft repair market. The coating can be used as an undercoat for ceramics.

Equivalent to:

TAFA 73MXC

Sulzer Metco 8443

Rockwell Hardness 65-85 B   Diameter (in)-1/16, (mm)-1.6

CrAlNi
207.0Bal

PMET 887

Characteristics and Composition

PMET 887 is a NiCrAlY cored wire specifically designed for arc spray systems. It produces dense, well bonded coatings with excellent high temperature oxidation and corrosion resistance to 1800° F (980° C). It can be used to prevent oxidation of low alloy steels and as an undercoat for ceramics. The coating is machineable.

Equivalent to:

TAFA 76MXC

Rockwell Hardness 75-85 B   Diameter (in)-1/16, (mm)-1.6

CrAlYNi
22.010.01.014

PMET 888

Characteristics and Composition

PMET 888 is a nickel aluminum molybdenum cored wire specifically designed for arc spraying. It produces dense, well-bonded coatings with excellent wear resistance and good corrosion resistance. It is widely used for machine element repair, dimensional restoration and wear resistance applications.

Equivalent to:

TAFA 74 MXC

Sulzer Metco 8447

Rockwell Hardness 75-85 B   Diameter (in)-1/16, (mm)-1.6

AlMoNi
5.55.0Bal

PMET 889

Characteristics and Composition

PMET 889 is a nickel chrome titanium wire specifically designed for arc spraying. It produces dense, well-bonded coatings with excellent corrosion resistance and good wear resistance. It is highly resistant to sulfur and vanadium atmospheres up to 1825° F. It has proven to be particularly effective as a protective arc spray coating for boiler tubes in black liquor recovery boilers and coal fired utility boilers.

Equivalent to:

TAFA 45 CT

Rockwell Hardness 30-35 C   Diameter (in)-1/16, (mm)-1.6

CrTiNi
43.00.756.3
PMET # competitor equivalents Description
PMET 540  Tafa 02Z Zinc
PMET 542 Tafa 04T, Sprababbitt Babbitt
PMET 549 Tafa 02W Tin
PMET 899 Sprabond Molybdenum

PMET 540

Characteristics and Composition

PMET 540 is a 99.99% pure zinc wire specifically designed for spraying in arc spray and flame spray systems. It produces a dense, well bonded coating that is ideal for corrosion protection of steel, electrical conductivity, applications and mold making. It is also used as a bond coat when spraying metals onto non-metallic substrates.

Equivalent to:

TAFA 02Z

Rockwell Hardness 65-70 B   Diameter (in)-1/16, 1/8, (mm)-1.6, 3.2

Zn
99.99

PMET 542

Characteristics and Composition

PMET 542 is a high tin, lead free Babbitt wire specifically designed for spraying in arc spray and flame spray systems. It produces dense, well-bonded coatings particularly applicable to high speed and heavy duty bearings.

Equivalent to:

TAFA 04T

Sulzer Metco Sprababbitt

Rockwell Hardness65-70 B   Diameter (in)-0.078, 1/8, (mm)-0.078, 3.2

SbCuSn
7.03.0Bal

PMET 549

Characteristics and Composition

PMET 542 is a high tin, lead free Babbitt wire specifically designed for spraying in arc spray and flame spray systems. It produces dense, well-bonded coatings particularly applicable to high speed and heavy duty bearings.

Equivalent to:

TAFA 04T

Sulzer Metco Sprababbitt

Rockwell Hardness65-70 B   Diameter (in)-0.078, 1/8, (mm)-0.078, 3.2

Sn
99.9

PMET 899

Characteristics and Composition

PMET 899 is a pure (99.95%) molybdenum wire specifically designed for thermal spraying. It produces dense, well-bonded coatings with excellent wear resistance and good corrosion resistance. It is particularly effective for applications where scuffing or galling is a problem, such as piston rings, shift forks and synchronizing rings.

Equivalent to:

TAFA 13T

Sulzer Metco Sprabond

PWA 36913 specification approval

Rockwell Hardness 15-35 C   Diameter (in)-1/16″, 1/8″

Mo
99.95