Power Generation

Land based turbines, gas turbine, and aerospace turbines endure the most extreme environments – which is why they demand the highest quality material. With Polymet wire, you can be sure that you are receiving the highest quality wire available for your extreme applications. For years we have been the industry trusted source for hardfacing, welding and thermal spray wires. Our proprietary manufacturing processes produce top quality wire for applications such as, gas turbine engine blades, cement plant, crusher rolls, gas turbine hot section components, structural components, gas turbine blades and vanes, combustors and much more.

PRODUCTS FOR THIS MARKET

PMET # Trade Name Specification
PMET 811 GTD 111 B50A880
PMET 818 Alloy 718 AMS 5832, A5.14 ERNiFeCr-2
PMET 820 Rene 220 B50TF239, PCC 1-59-02.061
PMET 823 GTD 222 B50A940, B50TF311
PMET 838 Inconel® 738 B50TF250, PWA 1495
PMET 839 Inconel® 939 B50TF250, PWA1495
PMET 842 Rene 142 B50TF274, MSRR 9500/247
PMET 845 C 242 MSRR 9500/17
PMET 847 Mar M 247 EMS 55447
PMET 860 Alloy 625 AMS 5837, A5.14 ERNiCrMo-3
PMET 863 C-263 B50A783, AMS 5966
PMET 865 Waspaloy® AMS 5828, MSRR 9500/202
PMET 870 Hastelloy® W AMS 5786, A5.14 ERNiMo-3
PMET 875 Hastelloy® X AMS 5798, A5.14 ERNiCrMo-2

PMET 811

B50A880 – GTD 111® welding wire for gas turbine engine components

NiCoFeCrWMoAlSi
Bal9.5143.81.63
MnNbTiTaZrCOther
4.92.80.020.1

PMET 818

AMS 5832 – Inconel 718® welding wire for gas turbine engine components

NiCoFeCrWMoAlSi
Bal18193.050.5
MnNbTiTaZrCOther
5.10.90.05

PMET 820

B50TF239 – Rene 220® welding wire for gas turbine engine frames & casings.

NiCoFeCrWMoAlSi
Bal12193.20.5
MnNbTiTaZrCOther
5.313.30.03

PMET 823

B50A940 – GTD 222® welding wire for gas turbine engine components.

NiCoFeCrWMoAlSi
Bal1922.521.2
MnNbTiTaZrCOther
2.310.05

PMET 838

B50TF191 – Inconel 738® welding wire for gas turbine engine blades and vanes.

NiCoFeCrWMoAlSi
Bal8.5162.61.83.4
MnNbTiTaZrCOther
0.93.41.80.060.7

PMET 839

B50TF250 – Inconel 939® welding wire for gas turbine engine blades & vanes.

NiCoFeCrWMoAlSi
Bal1922.521.9
MnNbTiTaZrCOther
13.71.40.10.15

PMET 845

MSRR 9500/17 – C 242 welding wire for gas turbine engine vanes.

NiCoFeCrWMoAlSi
Bal1020.510.30.3
MnNbTiTaZrCOther
0.30.3

PMET 863

B50A783 – Hastelloy C-263® welding wire for gas turbine engine frames & casings.

NiCoFeCrWMoAlSi
MnNbTiTaZrCOther

PMET 865

AMS 5828 – Waspaloy ® welding wire for gas turbine engine casings.

NiCoFeCrWMoAlSi
Bal13.519.54.21.4
MnNbTiTaZrCOther
3.10.070.06

PMET 870

AMS 5786 – Hastelloy W® welding wire for gas turbine engine hot section components.

NiCoFeCrWMoAlSi
Bal5.5524.5
MnNbTiTaZrCOther

PMET 875

AMS 5798 – Hastelloy X® welding wire for gas turbine engine combustors.

NiCoFeCrWMoAlSi
Bal1.518.521.80.69
MnNbTiTaZrCOther
0.1

PMET # Trade Name Specification
PMET 905 L-605 (Alloy 25) AMS 5796, MSRR 9500/23
PMET 906 Alloy 6 AMS 5788, MSRR 9500/19, A5.21 ERCoCr-A
PMET 912 Alloy 12 MSRR 9500/228, A5.21 ERCoCr-A
PMET 913 Alloy 12H MSRR 9500/15
PMET 914 FSX 414 B50A823
PMET 918 Mar M 918 B50A824, AMS 5814
PMET 921 Alloy 21 AMS 5835, A5.21 ERCoCr-E
PMET 931 Alloy 31 AMS 5789, MSRR 9500/25
PMET 972 Merl 72 PWA 795, MSRR 9500/248
PMET 980 T-800® B50TF193, DMR 34.071
PMET 988 Alloy 188 AMS 5801
PMET 994 CM 64 B50TF55, PWA 694, MSRR 9500/226, DMR 34.070

PMET 905

AMS 5796 – L 605® welding wire for gas turbine hot section components.

NiCoFeCrWMoAlSi
10Bal2015
MnNbTiTaZrCOther
1.50.1

PMET 906

AMS 5788 welding wire for pump shafts, pump sleeves, and valve seats.

NiCoFeCrWMoAlSi
BAL28.54.8
MnNbTiTaZrCOther
1.2

PMET 912

MSRR 9500/228 – Alloy 12 welding wire for hardfacing of lumber saw blades and cutting tools.

Characteristics and Composition

PMET 912 is a solid cobalt 12 wire. PMET 912 has excellent resistance to many forms of chemical and mechanical degradation over a wide temperature range. PMET 912 attributes are its anti-galling properties, abrasion and corrosion resistance, and oxidation resistance up to its melting range. It can be applied to all weldable steels, including stainless steels.

Specifications

  • MSRR 9500/225
  • AWS A5.21 ERCoCr-B

Deposit Characteristics

  • Abrasion Resistance – High
  • Impact Resistance – High
  • Corrosion Resistance – High
  • Hardness – HRC 43-47
  • Hot Wear Hardness – High

Applications

  • Saw teeth
  • Ball mill guide rollers
  • Chipping knives
  • Digester rotary feeder
  • Burner tips
  • Turbine blades
  • Sewage, rendering, and oil extraction screws
NiCoFeCrWMoAlSi
BAL2.5298
MnNbTiTaZrCOther
1.5
Rockwell Hardness
44-50 C

PMET 913

MSRR9500/115 – Alloy 12 H welding wire for gas turbine engine components.

Characteristics and Composition

PMET 913 is a high carbon cobalt based version of cobalt alloy 12 that has been forged into small diameter wire using Polymet’s patented hot extruded wire process. PMET 913 attributes are its anti-galling properties and increased abrasion resistance while maintaining similar properties to the alloy #12. It can be applied to all weldable steels, including stainless steels.

Specifications

  • MSRR 9500/15
NiCoFeCrWMoAlSi
BAL28.59
MnNbTiTaZrCOther
1.9
Rockwell Hardness
45-54 C

PMET 914

B50A823 – FSX 414 LC Welding wire for nozzle guide vane repair of land-based gas turbines

NiCoFeCrWMoAlSi
MnNbTiTaZrCOther

PMET 918

B50TF824, AMS5814, Turbaloy® 918, Mar M 918 welding wire for gas turbine vanes.

Characteristics and Composition

PMET 918 (Turbaloy® 918) is a cobalt-based high temperature alloy. Chromium and nickel are major alloying elements.  It is used to repair parts that have endured severe thermal cycling.

Specifications

  • AMS 5814
  • Mar M 918
  • B50A824

Typical Deposit Characteristics

  • Excellent high temperature strength
  • Galling resistant

Applications

  • Gas turbine engine components
  • Casting repair
NiCoFeCrWMoAlSi
20BAL20
MnNbTiTaZrCOther
7.50.07

PMET 921

AMS 5835 – Alloy 21 welding wire for gas turbine components.

NiCoFeCrWMoAlSi
2.75BAL275.6
MnNbTiTaZrCOther
0.3
Rockwell Hardness
25-35 C

PMET 931

AMS 5789 – Alloy 31 welding wire for gas turbine engine blades.

NiCoFeCrWMoAlSi
10.5BAL25.37.50.7
MnNbTiTaZrCOther
0.70.51
Rockwell Hardness
21-57 C

PMET 972

PWA 795 – Merl 72® welding wire for gas turbine engine blades.

NiCoFeCrWMoAlSi
15BAL2094.4
MnNbTiTaZrCOther
0.230.351.5

PMET 980

B50TF193 – Tribaloy® T-800 welding wire for gas turbine engine blades.

Characteristics and Composition

PMET 980 (Tribaloy® T-800) is a solid hardfacing wire consisting of cobalt, molybdenum, chromium, and silicon. PMET 980 attains its oxidation, corrosion, and galling resistance from its hard laves phase which is dispersed in a softer solid solution eutectic.

Specifications

  • B50TF193
  • DMR 34.071

Mechanical Properties

  • Tensile strength – less than 70,000 PSI
  • Elongation – Nil
  • Hardness – 52-62 HRC

Applications

  • PMET 980 has found acceptance in a number of applications where galling, abrasion, oxidation, and corrosion are a problem. Applications include pump shaft sleeves, computer hard drives, gas turbine blade shrouds and bases.
NiCoFeCrWMoAlSi
BAL17.528.83.5
MnNbTiTaZrCOther

PMET 988

AMS 5801 – HS 188® welding wire for gas turbine engine hot section components.

NiCoFeCrWMoAlSi
22BAL322150.4
MnNbTiTaZrCOther
0.11.1

PMET 994

B50TF55 – PWA 694 – CM64 welding wire for gas turbine engine blades.

Characteristics and Composition

PMET 994 (PWA 694) is a solid cobalt hardfacing wire. PMET 994 provided high strength and stability at temperatures up to 2100° F. Deposits of PMET 994 have outstanding resistance to wear, erosion, creep, thermal fatigue, and oxidation.

Specifications

  • PWA 694
  • B50TF55
  • MSR 9500/226
  • DMR 34.070

Typical Deposit Characteristics

  • Abrasion Resistance – Good
  • Corrosion Resistance – Good
  • Erosion Resistance – Good
  • Impact Resistance – Fair-poor
  • Hardness – 47-54 HRC

Applications

  • Gas turbine blades – shroud interlocking surface and other sites of wear.
NiCoFeCrWMoAlSi
MnNbTiTaZrCOther
Rockwell Hardness
47-54 C
PMET # description Specification
POLYCHROME 100 Fe Cr C Mn Si
POLYCHROME 100C Fe Cr C Mn Mo Si
POLYCHROME 100D Fe Cr C Mn Si

POLYCHROME 100

Characteristics and Composition

POLYCHROME 100 is an iron- based high chromium carbide metal cored wire, designed for metal to metal earth applications with severe abrasion and light to moderate impact. POLYCHROME 100 develops a fine cross check pattern and is used for a wide range of applications in the crushing, grinding, and construction industry. Deposits are normally limited to two layers. Deposits cannot be machined or flame cut.

NiCoFeCrWMoAlSi
Bal231
MnNbTiTaZrCOther
25

POLYCHROME 100C

Characteristics and Composition

POLYCHROME 100 C—an iron based high chromium carbide metal cored wire, designed for metal to earth applications with severe abrasion and light to moderate impact. POLYCHROME 100C develops a fine cross check pattern and is used for a wide range of applications in the crushing, grinding and construction industry. A unique attribute of POLYCHROME 100C is that it can be applied in multiple layers using stringer beads and special procedures (contact Polymet for more information). This process is used to refurbish coal and cement pulverizer rolls and rings. Deposits are normally limited to two layers, and cannot be machined or flame cut.

NiCoFeCrWMoAlSi
Bal2511.1
MnNbTiTaZrCOther
24.5

POLYCHROME 100D

NiCoFeCrWMoAlSi
Bal290.8
MnNbTiTaZrCOther
1.75
PMET # Competitor equivalents Description
PMET 226  Metco 8222 HCr Carbide
PMET 270 Tafa 90MXC Amorphous Alloy
PMET 273 Tafa 95 MXC Fe Cr B Si
PMET 297 Duocor Tungsten Carbide
PMET 887 Tafa 76MXC Ni Cr Al Y
PMET 889 Tafa 45CT Ni Cr Ti

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 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 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 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