Cobalt #6

Class: ERCoCr-A
AWS: A5.21

Conforms to Certification: AWS A5.21 | ASME SFA A5.21

Weld Process: GTAW (tig)

AWS Chemical Compositon Requirements
C = 0.9 – 1.4 Mo = 1.0 max
Mn = 1.0 max Fe = 3.0 max
Si = 2.0 max W = 3.0 – 6.0
Cr = 26 – 32 Co = Remainder
Ni = 3.0 max Other = 0.50 max

Available Sizes
Call of sizes and availability

Application
Cobalt #6 Bare Wire (ERCoCr-A) provides resistance to many forms of chemical and mechanical degradation over a wide temperature range. It bonds well with all weldable grade steels, including stainless.

Deposited Chemical Composition % (Typical)
C = 1.3 Mo = 0.1
Mn = 0.09 Fe = 1.0
Si = 1.3 W = 5.5
Cr = 30.6 Co = Balance
Ni = 1.0

Deposited All Weld Metal Properties % (AW)
Hardness (2 layer)    HRC   40 – 42

Deposited Charpy-V-Notch Impact Properties %
Not Applicable

Recommended Operation of Welding Rods
Flat Welding

Diameter Amps DCEN Volts Shielding Gas
1/8 90 – 120 20 – 24 argon
5/32 120 – 140 20 – 24 argon