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 |