Class: ECoCr-E

AWS: A5.13

Conforms to Certification: AWS A5.13             ASME SFA A5.13

AWS Chemical Composition Requirements
C = 0.15 – 0.40	Mo = 4.5 – 6.5
Mn = 1.5 max	Fe = 5.0 max
Si = 2.0 max	W = 0.50 max
Cr = 24 -29	Co = Remainder
Ni = 2.0 – 4.0	Other = 1.0 max

Available Sizes
3/32 X 14”
1/8 x 14”
5/32 x 14”
3/16 x 14”
1/4 x 14”

Description
Cobalt #21 coated electrodes deposit a low austenitic cobalt type alloy with excellent work hardenable high temperature, strength, and impart resistance. It is a good choice for valve trim and steam and fluid control valve bodies and seals. It bonds well to all weldable steels, including stainless.

Deposited Chemical Composition % (Typical)
C = 0.2	Mo = 5.2
Mn = 0.5	Fe = 3.4
Si = 0.7	W = 0.17
Cr = 27.9	Co = Balance
Ni = 2.5