Stainless steels
FERVEO INX 310 R
covered electrode · stick electrodeCatalogue only
AWS class
~E 310-16
EN ISO class
E 25 20 R 32
Tensile strength (Rm)
560–690 MPa
Classification
| AWS class | ~E 310-16 |
|---|---|
| EN ISO class | E 25 20 R 32 |
Purpose
- Cr-Ni 26/20 rutile electrode (~E 310-16), rated to +1200°C working temperature — for furnaces, boilers and heat-resistant steel piping.
Why it works
The high Cr-Ni content (26/20) gives a fully austenitic deposit stable at very high temperature — built specifically for parts running hot continuously, not for room-temperature service.
Fields of application
- Furnaces, boilers and piping in Cr-Ni and Cr-Si-Al alloyed steel.
- AISI 305, 310, 304 and equivalent cast/forged heat-resistant steels.
Chemical composition
| Element | Typical, % |
|---|---|
| C | 0.12 |
| Cr | 26 |
| Mn | 2.5 |
| Ni | 20 |
| Si | 0.9 |
Mechanical properties
| Tensile strength (Rm) | 560–690 MPa |
|---|---|
| Yield strength (Rp0.2) | 355 MPa |
| Elongation (A5) | 25 % |
| Impact energy (KV) | 47 J (20 °C) |
Process
| Polarity | DC+/AC |
|---|---|
| Positions | PAflatPBhorizontal-verticalPChorizontalPDhorizontal-overheadPEoverheadPFvertical-up |
| Re-drying | 120–200 °C / ≥2 h |
Sizes and part numbers
| Ø | Length | Current | Request |
|---|---|---|---|
| 2.5 mm | 250 mm | 50–80 A | |
| 3.2 mm | 300 mm | 80–110 A | |
| 3.2 mm | 350 mm | 80–110 A | |
| 4 mm | 350 mm | 110–140 A |
Cross-reference
| Replaces EutecTrode 310-17 (Castolin) | Direct replacement |
| Replaces EutecTrode 310-16 (Castolin) | Direct replacement |
| Replaces EI 310 (Magmaweld) | Direct replacement |
| Replaces AS P-310R (Askaynak) | Direct replacement |
| Replaces NIC 310 (Nicrotec) | Direct replacement |
| Replaces SUPRANOX RS 310 (Oerlikon) | Direct replacement |
| Replaces UTP 68 H (UTP) | 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
Furnaceboilerspipes made of Cr-Ni and Cr-Si-Al-alloyed steels.X15CrNiSi 25-20X15CrNiSi 25-21X15CrNrSi 20-12G-X40CrNi25GX40CrNiSi229X10CrAIX10CrAl24GX40CrSi1AISI 305310304
Advantages
- Rated to +1200°C working temperature.
- Weldable on DC+ or AC.