RW 312 - Nr.1.4337
RW 312 Stainless Welding Wire: High-Ferrite Welding Wire for Dissimilar Metals
RW 312 is preferred for dissimilar metal joints such as carbon steel to stainless steel.
Cracking Resistance The high-ferrite weld metal improves resistance to hot cracking.
Austenite-Ferrite Balance It helps maintain a dual-phase microstructure in applications with high nickel dilution.
Limitation Not recommended above 300°C or for components requiring post-weld heat treatment.
RW 312 Stainless Welding Wire: References and Comparable Standards
Stainless welding wires references and comparable standards
| Product |
Nominal Composition |
EN ISO 14343-B: 2017 |
AWS A5.9-2017
Alloy Designation |
DIN Werkstoff Nr. |
| RW 312 |
29 9 |
SS312 |
ER312 |
1.4337 |
RW 312 Stainless Welding Wire: Chemical Composition (Cast Analysis) (%)
Stainless welding wires chemical composition values
| Element |
RW 312 |
| C |
≤ 0,15 % |
| Mn |
1,00-2,50 % |
| Si |
0,30-0,65 % |
| S |
≤ 0,020 % |
| P |
≤ 0,030 % |
| Cr |
28,0-32,0 % |
| Ni |
8,0-10,5 % |
| Mo |
≤ 0,30 % |
| Cu |
≤ 0,30 % |
| N |
- |
| Nb |
- |
| Ti |
- |
Published:
01 January 2025
|
Last Updated:
08 June 2026
