This 12 Cr alloy (wt.%) is an air-hardening steel. Preheat and postheat treatments are
required to achieve welds of adequate ductility for many engineering purposes.
HBW410 is used to welding 403, 405, 410, and 416 stainless.
It is also used for deposition of overlays on carbon steels to resist corrosion, erosion, or abrasion.