SAF Starinox 309L description:
STARINOX 309L is a semi-basic MMA electrode depositing a low C – 22/24%Cr – 12/14%Ni weld metal with approx. 12% delta-ferrite promoting high resistance to hot cracking. This electrode has three main applications:
- Buffer layers and claddings on unalloyed and low-alloy steels which are already corrosion resistant in the first
layer.
- Dissimilar joints (austenitic steels to ferritic steels) with operating temperatures up to 300C. In case of higher temperatures, use ALIN 182.
- Welding of stainless steels of similar composition.