WT-21 Metal Cored Wire (GMAW)

WT-21 GMAW-C • Cobalt • AWS A5.21 ERCCoCr-E

Key Fetures

  • Cobalt, high chromium, molybdenum electrode
  • Excellent for corrosion resistance, galling, cavitation, and metal-to-metal wear resistance
  • Not recommended for severe abrasion
Category:

Description

Typical Applications

  • Steam Valves
  • Hot Shears
  • Chemical and Petrochemical Valves
  • Cavation Repair
  • Forging Dies

Welding Positions

  • Flat

Shielding Gas

  • 100% Argon
Diameters / Packaging
Diameter33lb (15 kg)
in(mm)Plastic Spool
0.045(1.2)W1210-120X15
1/16(1.6)W1210-160X15
Deposit Composition
%C%Mn%Si%Cr%Ni
Requirements AWS AWS A5.21 ERCCoCr-E0.15-0.402.0 max1.5 max25-301.5-4.0
Typical Results0.250.70.627.52.1
%Fe%Mo%W%CoHarndess, RC
Requirements AWS AWS A5.21 ERCCoCr-E5.0 Max4.5-7.00.50 maxBalanceNot Required
Typical Results3.95.50.15924
Typical Operating Procedures
DiameterApprox. CurrentVoltageCTWD
in(mm)(amps)(volts)in(mm)
0.045(1.1)175

225

240

260
20

24

26

28
1(25)
1/16(1.6)280

300
26

28
1(25)