Cobalt #1
Class: ERCCoCr-C
AWS: A5.21
Conforms to Certification: AWS A5.21 | ASME SFA A5.21
Weld Process: GMAW – Flux Core
| AWS Chemical Composition Requirements | |
| C = 2.0 – 3.0 | Mo = 1.0 max |
| Mn = 2.0 max | Fe = 5.0 max |
| Si = 2.0 max | W = 11.0 – 14.0 |
| Cr = 25 – 33 | Co = Remainder |
| Ni = 3.0 max | Other = 1.0 max |
Available Sizes
.045 x 33 lb spool
1/16 x 33 lb spool
Application
Type #1 Flux Cored Wire (ERCCoCr-C) is a tubular wire version of the highest hardness standard cobalt alloy used with chromium carbides that impact outstanding abrasive wear resistance. The addition of tungsten enhances high temperature hardness and matrix toughness for excellent adhesive and solid particle erosion wear resistance. It bonds well with all weldable steels including stainless.
| Deposited Chemical Composition % (Typical) | |
| C = 2.6 | Mo = 0.10 |
| Mn = 0.6 | Fe = 2.6 |
| Si = 0.2 | W = 11.2 |
| Cr = 25.8 | Co = Balance |
| Ni = 2.2 | |
Deposited All Weld Metal Properties % (AW)
Hardness (2 layer) HRC 48 – 50
Deposited Charpy-V-Notch Impact Properties %
Not Applicable
Recommended Operation of Welding Rods
Flat Welding
| Diameter | Amps DCEP | Volts | Shielding Gas |
| .045 | 180 – 200 | 25 – 27 | argon |
| 1/16 | 250 – 300 | 26 – 28 | argon |