RW 318SI - Nr.1.4576
RW 318SI Stainless Welding Wire: Silicon- and Niobium-Bearing Welding Wire
RW 318SI is intended for chemical-industry applications requiring high corrosion resistance up to 400°C.
Silicon Addition RW 318SI supports weldability and weld-pool fluidity.
Niobium Addition RW 318SI is used for chemical-industry applications.
Application Focus Used where corrosion resistance is the main priority in stainless welding applications.
RW 318SI 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 318SI |
19 12 3 Nb Si |
- |
(ER318) |
1.4576 |
RW 318SI Stainless Welding Wire: Chemical Composition (Cast Analysis) (%)
Stainless welding wires chemical composition values
| Element |
RW 318SI |
| C |
≤ 0,08 % |
| Mn |
1,00-2,50 % |
| Si |
0,65-1,00 % |
| S |
≤ 0,020 % |
| P |
≤ 0,030 % |
| Cr |
18,0-20,0 % |
| Ni |
11,0-14,0 % |
| Mo |
2,50-3,00 % |
| Cu |
≤ 0,30 % |
| N |
- |
| Nb |
10xC-1,00 % |
| Ti |
- |
Published:
01 January 2025
|
Last Updated:
08 June 2026
