WT-21 Electrode (SMAW)

Electrode • Cobalt • AWS A5.13 ECoCr-B

Key Fetures

  • Cobalt, high chromium, molybdenum
  • Excellent for corrosion resistance, galling, cavitation, and metal-to-metal wear resistance
  • Not recommended for severe abrasion
  • These key features are universal to all WT-21 product forms
Category:

Description

Typical Applications

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

Welding Positions

  • All
Diameters / Packaging
Diameter10 lb (4.5 kg)
in(mm)Carton
3/32(2.4)E1210-240X350
1/8(3.2)E1210-320X350
5/32(4.0)E1210-400X350
3/16(4.8)E1210-480X350
Deposit Composition
%C%Mn%Si%Cr%Ni
Requirements

AWS A5.13 ECoCr-E
0.15-0.401.5 max2.0 max24-292.0-4.0
Typical Results0.230.8.0827.72.8
%Fe%Mo%W%CoHardness, Rc
Requirements

AWS A5.13 ECoCr-E
5.0 max4.5-6.50.50 maxBalanceNot Required
Typical Results2.45.50.055928
Typical Operating Procedures
Polarity1/8 in (3.2 mm)Current (Amps) 5/32 in (4.0 mm)3/16 in (4.8 mm)
DC+115-135145-165175-195