General Information
Chemical Composition
Physical Properties
Mechanical Properties
General Information
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
Chemical Composition
Chemical Composition of 422 Stainless Steel
Element
Percent by Weight
C
Carbon
0.20 – 0.25%
Cr
Chromium
11.50 – 13.50%
P
Phosphorous
0.040% max
Mo
Molybdenum
0.75 – 1.25%
S
Sulfur
0.030% max
W
Tungsten
0.75 – 1.25%
Si
Silicon
1.00% max
V
Vanadium
0.20 – 0.50%
Mn
Manganese
1.00% max
Fe
Iron
Balance
Physical Properties
Physical Properties of 422 Stainless Steel
Density | Heat Treatment | Hardening |
0.280 lb/cubic inch | Heat treatment is sensitive as the alloy is very susceptible to cracking | In the annealed condition, typical hardness is Rc 21/25. In the quenched and tempered condition, hardness is typically Rc 45/50. |
Mechanical Properties
Mechanical Properties of 422 stainless steel
- 422 bar is readily machinable in the annealed condition with machining characteristics similar to those of alloy 420 stainless steel.

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More

Get a quote Learn More
