High corrosion resistant Stainless Steel
Avesta 309L is a high-alloy 23 Cr 13 Ni wire primarily intended for surfacing of low-alloy steels and dissimilar welding between mild steel and stainless steels, offering a ductile and crack resistant weldment. The chemical composition, when surfacing, is equivalent to that of ASTM 304 from the first run. One or two layers of 309L are usually combined with a final layer of 308L, 316L or 347.
Structure: Austenite with 5 – 10 % ferrite.
Scaling temperature: Approx. 1000 °C (air).
Corrosion resistance: Superior to type 308L. When fur facing on mild steel a corrosion resistance equivalent to ASTM 304 is obtained at the first bead.
- Spec: AWS A5.9 ER309L
- Wire Diameter: 1.6mm, 2.4mm
- Approvals: DNV GL