Stainless steels
FERVEO INX 17MoH MIG
solid wireCatalogue only
also as: TIG rod
AWS class
~17MoH
EN ISO class
G Z 17 Mo H
Hardness
230 HB · 47 HRC
Classification
| AWS class | ~17MoH |
|---|---|
| EN ISO class | G Z 17 Mo H |
| Material no. (W.-Nr.) | 1.4122 |
Purpose
- Higher-hardness variant of INX 17Mo (47 HRC vs 43 HRC), specifically for water, steam and gas valve seating faces.
Why it works
Same Cr-Mo core as INX 17Mo, with more carbon — raises hardness and strength (Rm 750 MPa vs 700 MPa) at the cost of elongation (12% vs 15%); built specifically for seating faces, not structural joining.
Fields of application
- Seating faces of water, steam and gas valves in unalloyed/low-alloy steel and castings.
- DIN 1.4122 steel.
Chemical composition
| Element | Typical, % |
|---|---|
| C | 0.4 |
| Cr | 16.5 |
| Mn | 0.45 |
| Mo | 1.1 |
| Ni | 0.5 |
| Si | 0.5 |
Mechanical properties
| Tensile strength (Rm) | 750 MPa |
|---|---|
| Yield strength (Rp0.2) | 550 MPa |
| Elongation (A5) | 12 % |
| Hardness | 230 HB · 47 HRC |
Process
| Polarity | DC+ |
|---|---|
| Shielding gas | M12,M13 |
Sizes and part numbers
| Ø | Request |
|---|---|
| 0.8 mm | |
| 1 mm | |
| 1.2 mm | |
| 1.6 mm |
Supply programme
spools C300 / D100 / D200 / K200 / K300
Base metals
1.4122
Advantages
- Harder than INX 17Mo (47 HRC).
- Higher strength (Rm 750 MPa).
- Developed for service to 450°C.
Limitations
- Lower elongation than INX 17Mo (12% vs 15%).