Alloy steels are designated by AISI four-digit numbers. They are more responsive to heat and mechanical treatments than carbon steels. They comprise various types of steels having compositions which exceed the limitations of Va, Cr, Si, Ni, Mo, C and B in the carbon steels.
| Element | Content(%) |
|---|---|
| Iron, Fe |
Balance |
| Carbon, C | 0.13-0.18 |
| Manganese, Mn | 0.40-0.60 |
| Phosphorous, P | 0.035 (max) |
| Sulfur, S | 0.04 (max) |
| Silicon, Si | 0.15-0.30 |
| Nickel, Ni | 3.25-3.75 |
| Molybdenum, Mo | 0.20-0.30 |
| Properties | Metric | Imperial |
|---|---|---|
| Elastic modulus | 190-210 GPa | 27557-30458 ksi |
| Poisson's ratio | 0.27-0.30 | 0.27-0.30 |
| 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 A29
ASTM A322
ASTM A331
ASTM A519
ASTM A752
SAE J1397
SAE J404
SAE J412
ASTM A505
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.