Stainless steels
FERVEO INX 410
covered electrode · stick electrodeCatalogue only
also as: solid wireTIG rod
AWS class
E 410-15
EN ISO class
E 13 B 22
Hardness
350 HB
Classification
| AWS class | E 410-15 |
|---|---|
| EN ISO class | E 13 B 22 |
Purpose
- Basic-coated Cr13 martensitic-ferritic electrode (E 410-15), for joining and surfacing 13% Cr steel and its castings — also suited for gas, water and steam valve seats.
Why it works
Unlike the austenitic (300-series) families, this steel is martensitic: it hardens on cooling after welding, so the manufacturer requires annealing at 750°C for 2 hours with slow furnace cooling to restore ductility to the weld zone — a step the austenitic families don't need.
Fields of application
- Joining and surfacing of martensitic and martensitic-ferritic 13% Cr steel and its castings.
- Filling of gas, water and steam valve seats.
Chemical composition
| Element | Typical, % |
|---|---|
| C | 0.07 |
| Cr | 13.5 |
| Mn | 0.8 |
| Si | 0.7 |
Mechanical properties
| Tensile strength (Rm) | 650–800 MPa |
|---|---|
| Yield strength (Rp0.2) | 450 MPa |
| Impact energy (KV) | 15 J (20 °C) |
| Hardness | 350 HB |
Process
| Polarity | DC+ |
|---|---|
| Positions | PAflatPBhorizontal-verticalPChorizontalPDhorizontal-overheadPEoverheadPFvertical-up |
| Re-drying | 300°C - 350°C / min. 2h |
Sizes and part numbers
| Ø | Length | Current | Request |
|---|---|---|---|
| 2.5 mm | 250 mm | 50–90 A | |
| 3.2 mm | 350 mm | 80–120 A | |
| 4 mm | 350 mm | 110–160 A |
Cross-reference
| Replaces OK 68.15 (ESAB) | Direct replacement |
| Replaces CR-40 (Kobelco) | Direct replacement |
| Replaces EIS 410 (Magmaweld) | Direct replacement |
| Replaces BASINOX 410 (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
X6Cr 13X6CrAI 13X15Cr 13X10Cr 13G-X10Cr 13Current TypeD.C.(+)
Advantages
- Good weldability of 13% Cr martensitic steel.
Limitations
- Requires post-weld annealing at 750°C / 2h with slow furnace cooling.