Stainless steels
FERVEO INX 308H B
covered electrode · stick electrodeCatalogue only
AWS class
E 308 H-15
EN ISO class
E 19 9 H B 22
Tensile strength (Rm)
550 MPa
Classification
| AWS class | E 308 H-15 |
|---|---|
| EN ISO class | E 19 9 H B 22 |
Purpose
- Basic-coated electrode from the 308H family, controlled carbon (0.04–0.08%) for AISI 304H and creep-strength applications.
Why it works
Same as standard INX 308, except carbon is restricted to 0.04–0.08% — raising tensile and hot creep strength. Deposit ferrite is targeted around 5 FN to minimize sigma-phase embrittlement in high-temperature service.
Fields of application
- Welding of AISI 304H and equivalent steels requiring creep strength.
Chemical composition
| Element | Typical, % |
|---|---|
| C | 0.05 |
| Cr | 19 |
| Mn | 1.4 |
| Ni | 10.5 |
| Si | 0.6 |
Mechanical properties
| Tensile strength (Rm) | 550 MPa |
|---|---|
| Yield strength (Rp0.2) | 350 MPa |
| Elongation (A5) | 30 % |
| Impact energy (KV) | 47 J (20 °C) |
Process
| Polarity | DC+ |
|---|---|
| Positions | PAflatPBhorizontal-verticalPChorizontalPDhorizontal-overheadPEoverheadPFvertical-up |
Sizes and part numbers
| Ø | Length | Current | Request |
|---|---|---|---|
| 2.5 mm | 250 mm | 60–90 A | |
| 3.2 mm | 350 mm | 100–130 A | |
| 4 mm | 350 mm | 100–160 A |
Cross-reference
| Replaces BASINOX 308H (Oerlikon) | Direct replacement |
Equivalence refers to the classification (AWS / EN ISO), not to product identity. In applications with a qualified procedure (WPS), validate the substitution before use.
Base metals
301302304304H305321
Advantages
- Higher tensile and hot creep strength than standard INX 308.
- Ferrite targeted at ~5 FN — lower sigma-phase embrittlement risk.