In alloy steels, alloying elements are added in lower quantities to improve its strength and hardenability or in larger quantities to achieve properties like extreme temperature stability and corrosion resistance. AISI 8642 alloy steel is a nickel-chromium-molybdenum steel.
| Element | Content(%) |
|---|---|
| Iron, Fe | 96.585 - 97.93 |
| Chromium, Cr | 0.75 - 1.2 |
| Manganese, Mn | 0.65 - 1.1 |
| Carbon, C | 0.37 - 0.44 |
| Molybdenum, Mo | 0.15 - 0.3 |
| Silicon, Si | 0.15 - 0.3 |
| Sulfur, S | ≤0.040 |
| Phosphorous, P | ≤0.035 |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 903 MPa | 131000 psi |
| Yield strength | 738 MPa | 107000 psi |
| Modulus of elasticity | 205 GPa | 29700 ksi |
| Bulk modulus | 140 GPa | 20300 ksi |
| Shear modulus | 80 GPa | 11600 ksi |
| Poisson’s ratio | 0.29 | 0.29 |
| Elongation at break | 20.40% | 20.40% |
| Hardness, Brinell | 269 | 269 |
| Hardness, Vickers | 284 | 284 |
| Hardness, Knoop | 294 | 294 |
| Hardness, Rockwell C | 27 | 27 |
| Hardness, Rockwell B | 99 | 99 |
| Machinability | 65 | 65 |
| 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 A331
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.