Stainless Steel Alloy 422 is mainly used for manufacturing of buckets and blades for steam turbines, but also in the aerospace industry for manufacturing of high temperature bolting, valves and valve trim. Other less common applications of Stainless Steel 422 are in refineries, thermal pipe plants, pharmaceutical industry, oil refineries, textile industries, nuclear plants, chemical industry, etc.
Stainless Steel 422 is hardenable high-alloy Stainless Steel with a martensitic crystal structure and good resistance to corrosion. It is mainly used for manufacturing of parts that are subjected to high temperatures of up to 1200° F (649° C). With the right heat treatment, parts made of this steel can also have excellent mechanical properties depending on section, form, and application involved.
Standard Inventory Specifications
- UNS S42200
- AMS 5655
- ASTM A 176
- ASTM A 565
- AMSE SA 176
- B50A951 A1
- B50A951 A2
- AISI 636
Common Trade Names
- 422 Stainless
- Alloy 422
- 422
Common Applications of 422
- Power generation
- Compressors
- Steam turbines
- Aircraft parts
- High-temperature bolting