Product
Stainless Welding Wire - RW ER309L Si
Austenitic stainless wire for joining stainless-to-stainless and dissimilar combinations. Built for reliable buffer layers and strong transition joints on clad and low-alloy assemblies.
Product code
RW ER309L Si
Product
Stainless Welding Wire - RW ER309L Si
Used for welding austenitic stainless steels, joining dissimilar metals, buffer layers, joining corrosion-resistant stainless steels to low-alloy steels, and welding clad steels.
Classıfıcatıon
TS EN ISO 14343-A
G 23 12 LSi
AWS
AWS A5.9
ER 309LSi
Certıfıcates
Tip: For dissimilar joints, control dilution and keep interpass temperature within your WPS limits.
Applıcatıons
Specifications & application fields
Used for welding austenitic stainless steels, joining dissimilar metals, buffer layers, joining corrosion-resistant stainless steels and their joining with low-alloy steels, and welding clad steels.
Dissimilar metals
Stainless ↔ low alloy
Buffer layers
Before overlays
Clad steels
Transition welds
Shielding gas group: M12 – M13 – M14.
Why ıt fıts
Built for transitions
Stable bead wetting
Si-enhanced wetting supports smooth toes and consistent fusion.
Good crack resistance
Suitable for mixed steel combinations and transition layers.
Process-ready
Designed for repeatable production welding under proper shielding.
Final suitability depends on WPS, joint design and base metal.
Chemıstry
Chemical properties
Typical wire composition.
| Analysıs type | C | Si | Mn | Cr | Ni |
|---|---|---|---|---|---|
| Welding wire | 0,010 | 0,72 | 1,83 | 23,45 | 13,55 |
Mechanıcs
Mechanical properties
After welding / ISO-V impact (−40°C).
| Test type | Shıeldıng gas | Yıeld strength (MPa) | Tensıle strength (MPa) | Elongatıon (%) | Notch ımpact ISO-V (−40°C) |
|---|---|---|---|---|---|
| After welding | M12 – M13 – M14 | Min 470 | Min 600 | Min 35 | Min 63 J |
Packagıng
Packaging options
Diameters and net weights per piece.
| Dıameter (mm) | Packagıng type | Net weıght (kg) |
|---|---|---|
| 1,00 | Metal spool | 15 |
| 1,20 | Metal spool | 15 |