Sep 24 2012
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Stainless steels are high-alloy steels that exhibit better corrosion resistance than other steels. This is because of the increased chromium content.
Stainless steels usually fall into three groups depending on their crystalline structure—austenitic, martensitic, and ferritic. A blend of ferritic and martensitic steels forms a fourth group known as the precipitation-hardened steels.
This article offers an overview of Grade 422 stainless steel.
The chemical composition of Grade 422 stainless steel has been illustrated in the table below.
Chemical Composition
| Element |
Content (%) |
| Iron, Fe |
~ 82 |
| Chromium, Cr |
11.0-13.0 |
| Manganese, Mn |
1.00 |
| Nickel, Ni |
0.5-1.0 |
| Molybdenum, Mo |
0.75-1.25 |
| Tungsten, W |
0.75-1.25 |
| Silicon, Si |
0.75 |
| Carbon, C |
0.20-0.25 |
| Vanadium, V |
0.15-0.3 |
| Phosphorous, P |
0.025 |
| Sulfur, S |
0.025 |
Physical Properties
The physical properties of Grade 422 stainless steel are provided in the table below.
| Properties |
Metric |
Imperial |
| Density |
7.8 g/cm3 |
0.2817 lb/in³ |
Mechanical Properties
The mechanical properties of Grade 422 stainless steel are given in the table below.
| Properties |
Metric |
Imperial |
| Elastic modulus |
190-210 GPa |
27557–30458 ksi |
| Poisson's ratio |
0.27-0.30 |
0.27-0.30 |
Thermal Properties
The table below illustrates the thermal properties of Grade 422 stainless steel.
| Properties |
Conditions |
| T (ºC) |
Treatment |
| Thermal expansion |
11.2 x 10-6/ºC |
0-100 |
- |
| Thermal conductivity |
23.9 x W/m.K |
100 |
- |
Other Designations
Materials similar to Grade 422 stainless steel are:
- ASTM A565
- AISI 422
- AMS 5655
- GE B50A125E
- DIN 1.4935
- SAE J467
- SAE 51422