309L deposits a 24% Cr / 13% Ni austenitic stainless steel weld metal with a nominal ferrite content of FN 10.
The relatively high alloy and ferrite levels enable the weld metal to tolerate dilution from mild or low alloyed steels without hot cracking.
- Joining of clad steels and dissimilar joints between stainless and mild or low alloy steels.
- Buffer layers on mild and low alloy steels prior to overlaying with MIG/TIG 308L.
- Welding of similar composition, 309L type, stainless steels.
- Joining of ferritic-martensitic stainless steels.