Stainless steels are high-alloy steels with good corrosion resistance due to the presence of large amounts of chromium in these steels. Most of the stainless steels contain about 10% of chromium. Stainless steels are available in three different groups based on their crystalline structure. These groups include martensitic, austenitic and ferritic. The combination of martensitic and ferritic steels forms a fourth group of stainless steels known as precipitation-hardened steels.
Element | Content(%) |
---|---|
Iron, Fe | 86 |
Chromium, Cr | 12.3 |
Manganese, Mn | 1.0 |
Silicon, Si | 0.50 |
Carbon, C | 0.15 |
Phosphorous, P | 0.040 |
Sulfur, S | 0.030 |
Carbon, C | 0.15 |
Properties | Metric | Imperial |
---|---|---|
Tensile strength | 485 MPa | 70300 psi |
Yield strength (@strain 0.200 %) | 310 MPa | 45000 psi |
Fatigue Strength (annealed, @diameter 25mm/0.984 in) | 275 MPa | 39900 psi |
Shear modulus (typical for steel) | 76.0 GPa | 11000 ksi |
Elastic modulus | 190-210 GPa | 27557-30458 ksi |
Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
Elongation at break (in 50 mm) | 25.00% | 25.00% |
Izod impact (tempered) | 102 J | 75.2 ft-lb |
Hardness, Brinell (converted from Rockwell B hardness) | 139 | 139 |
Hardness, Knoop (converted from Rockwell B hardness) | 155 | 155 |
Hardness, Rockwell B | 80 | 80 |
Hardness, Vickers (converted from Rockwell B hardness) | 153 | 153 |
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 |