
Stainless steels are called as high-alloy steels. Due to the presence of large amounts of chromium in the range of 4 to 30%, they have high corrosion resistance than other steels. Stainless steels are classified into martensitic, ferritic and austenitic based on their crystalline structure. However, stainless steels present in the form of a combination of martensitic and austenitic steels are known as precipitation-hardened steels.
| Element | Content(%) |
|---|---|
| Iron, Fe | 42 |
| Nickel, Ni | 36 |
| Chromium, Cr | 19 |
| Manganese, Mn | 2 |
| Silicon, Si | 1.13 |
| Carbon, C | 0.080 |
| Phosphorous, P | 0.040 |
| Sulfur, S | 0.030 |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength, ultimate | 550 MPa | 79800 psi |
| Tensile strength, yield (@0.2%) | 260 MPa | 37700 psi |
| Modulus of elasticity | 197 GPa | 28600 ksi |
| Poisson’s ratio | 0.27 – 0.30 | 0.27 – 0.30 |
| Elongation at break (in 50 mm) | 40% | 40% |
| Production Route | Hot Rolled, Cold Rolled |
| Material Standard | AISI, ASTM, ASME, DIN, BS, EN, ISO, JIS, GOST, SAE, IS & Custom Chemistry |
| Size | Width from 100mm to 3000mm ; Length from 500mm to 12000mm |
| Thickness | 0.1mm to 400mm |
| Delivery Condition | As Rolled, Annealed, Quenched and Tempered, Normalized |
| Surface Finish | Plain, Brushed, Cladded |