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 |