Heat-resistant Cr-Mo steels
FERVEO CMO 1 FCW
flux-cored wire (FCW)Catalogue only
also as: solid wireTIG rod
AWS class
E81 T1-B2C
EN ISO class
T CrMo1 R C 2
Tensile strength (Rm)
550–690 MPa
Classification
| AWS class | E81 T1-B2C |
|---|---|
| EN ISO class | T CrMo1 R C 2 |
Purpose
- CO₂-shielded flux-cored wire, 1.2% Cr–0.5% Mo (AWS E81T1-B2C, EN ISO T CrMo1 R C 2) — welding heat-resistant Cr-Mo steels in a higher-productivity flux-cored format.
Why it works
The same Cr-Mo alloy as the FERVEO CMO 1 family, in gas-shielded flux-cored wire format — higher deposition productivity than a covered electrode, for semi-automatic welding of Cr-Mo boilers and piping in higher-volume fabrication.
Fields of application
- Cr-Mo steel boilers, piping, and castings in higher-volume fabrication, semi-automatic format.
Chemical composition
| Element | Typical, % |
|---|---|
| C | 0.06 |
| Cr | 1.2 |
| Mn | 1.2 |
| Mo | 0.5 |
| Si | 0.5 |
Mechanical properties
| Tensile strength (Rm) | 550–690 MPa |
|---|---|
| Yield strength (Rp0.2) | 460 MPa |
Process
| Polarity | DC+ |
|---|---|
| Shielding gas | C1 |
| Positions | PAflatPBhorizontal-verticalPChorizontalPDhorizontal-overheadPEoverheadPFvertical-up |
| Requires shielding gas | Requires shielding gas |
| Heat treatment | 680°C / 1h |
Base metals
DIN: 13 CrMo 4424 CrMo 5Cast Steels: GS 17CrMo55GS 22CrMo54G17CrMo5-5G22CrMo5-4EN: 13 CrMo 4-5G 17 CrMo 5-5G 22 CrMo 5-4ASTM: A 182A 387A217A 387 Gr. 11-12
Advantages
- Semi-automatic flux-cored format — higher deposition productivity than a covered electrode for the same CrMo1 grade.
- Same Cr-Mo alloy grade as the FERVEO CMO 1 electrode family — consistent in-service behavior across processes.
Limitations
- Needs shielding-gas equipment — not self-shielded, unlike other FERVEO hardfacing families.