Alloy steels are steels containing elements such as chromium, cobalt, nickel. They also contain a variety of steels with compositions that exceed the limitations of Si, Va, Cr, Ni, Mo, Mn, B and C allocated for carbon steels. Alloy steels are used in specific melting and deoxidization processes for particular kind of applications. When compared with carbon steels, the alloy steels are a lot more responsive to mechanical and heat treatments.
| Element | Content(%) |
|---|---|
| Iron, Fe | 96.54-97.67 |
| Manganese, Mn | 0.750-1.00 |
| Carbon, C | 0.480-0.530 |
| Nickel, Ni | 0.400-0.700 |
| Chromium, Cr | 0.400-0.600 |
| Silicon, Si | 0.150-0.300 |
| Molybdenum, Mo | 0.150-0.250 |
| Sulfur, S | ≤ 0.0450 |
| Phosphorous, P | ≤ 0.0350 |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 715 MPa | 104000 psi |
| Yield strength | 385 MPa | 55800 psi |
| Bulk modulus (typical for steel) | 140 GPa | 20300 ksi |
| Shear modulus (typical for steel) | 80.0 GPa | 11600 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) | 22.50% | 22.50% |
| Hardness, Brinell | 212 | 212 |
| Hardness, Knoop (converted from Brinell hardness) | 235 | 235 |
| Hardness, Rockwell B (converted from Brinell hardness) | 94 | 94 |
| Hardness, Rockwell C (converted from Brinell hardness, value below normal HRC range, for comparison only) | 16 | 16 |
| Hardness, Vickers (converted from Brinell hardness) | 223 | 223 |
| Machinability (annealed and cold drawn, based on 100 machinability for AISI 1212 steel) | 60 | 60 |
| 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 |
ASTM A322
ASTM A505
ASTM A519
SAE J404
SAE J412
SAE J770
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.