
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 |