General Properties
Alloy 405 is a 12% chromium stainless steel designed to be used in the as-welded condition. Unlike the other grades of 12% chromium stainless, 405 is not vulnerable to extensive hardening through air cooling from high temperatures.
Specifications: UNS S40500
Applications:
Applications that frequently use alloy 405 include, but are not limited to:
Steam nozzles
Partitions
Annealing boxes
Quenching racks
Fabrications that cannot be annealed after welding
Standards:
ASTM/ASME: UNS S40500
EURONORM: FeMi35Cr20Cu4Mo2
DIN: 2.4660
Machinability
Type 405 can be easily machined due to its soft and ductile characteristics
Weldability
Can be welded using shielded fusion and resistance techniques
Oxyacetylene is not recommended
Post weld annealing will maximize ductility
