Stainless Flux Cored Wire - 309L All Position
309L all-position stainless flux-cored wire (AWS A5.22) is the high-alloy FCAW choice for dissimilar joints — stainless to carbon or mild steel — and for overlay/buffer layers. Its extra chromium and nickel handle carbon-steel dilution, keeping the weld austenitic and crack-resistant, in all positions. Common sizes .035", .045".
| AWS Classification | AWS A5.22 309L (all-position) |
| Typical Use | Dissimilar joints (SS ↔ carbon steel), overlay |
| Position | All positions |
Gas-shielded; confirm shielding gas and polarity on the mill certificate.
Frequently Asked Questions
When do I use 309L flux-cored wire?
For joining stainless to carbon steel and for stainless overlay/buffer layers, where its high alloy content prevents cracking from dilution.
