Stainless steels are high-alloy steels that possess good corrosion resistance in comparison with other steels because they contain more chromium. Based on their crystalline structure, stainless steels are divided into three groups, namely, martensitic, austenitic and ferritic. A combination of martensitic and ferritic steels forms a fourth group known as precipitation-hardened steels.
| Element | Content(%) |
|---|---|
| Iron, Fe | 83.4 |
| Chromium, Cr | 12.5 |
| Nickel, Ni | 1.88 |
| Manganese, Mn | 1.0 |
| Silicon, Si | 1.0 |
| Carbon, C | 0.15 |
| Phosphorous, P | 0.040 |
| Sulfur, S | 0.030 |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 1795 MPa | 260300 psi |
| Yield strength (@strain 0.200%) | 1013 MPa | 146900 psi |
| Elastic modulus | 200 GPa | 29000 ksi |
| Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
| Elongation at break (in 50 mm) | 15% | 15% |
| Izod Impact (hardened and tempered) | 30-80 J | 22.1-59 ft.lb |
| Hardness, Brinell (converted from Rockwell C hardness) | 459 | 459 |
| Hardness, Knoop (converted from Rockwell C hardness) | 506 | 506 |
| Hardness, Rockwell C (before testing) | 48 | 48 |
| Hardness, Vickers (converted from Rockwell C hardness) | 487 | 487 |
| 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 |
AMS 5615
ASTM A276
ASTM A314
ASTM A473
ASTM A511
ASTM A580
FED QQ-S-763
SAE 51414
SAE J405 (51414)
1) Structures in Buildings, bridges, railway stations.
2) Fabrication of pipeline components & Industrial equipment.
3) Construction of automotive bodies, warehouses, shipping containers.
4) Commercial appliances, etc.