Alloy steels consist of alloying elements such as manganese, silicon, nickel, titanium, copper, chromium and aluminum in varying amounts to enhance the properties of steel such as corrosion resistance, hardenability, formability, strength and weldability. AISI 8645 alloy steel is a nickel-chromium-molybdenum steel.
| Element | Content(%) |
|---|---|
| Iron, Fe | 96.595 - 97.72 |
| Manganese, Mn | 0.75 - 1 |
| Carbon, C | 0.43 - 0.48 |
| Nickel, Ni | 0.40 - 0.70 |
| Chromium, Cr | 0.40 - 0.60 |
| Silicon, Si | 0.15 - 0.30 |
| Molybdenum, Mo | 0.15 - 0.25 |
| Sulfur, S | ≤0.040 |
| Phosphorous, P | ≤0.035 |
| Properties | Metric | Imperial |
|---|---|---|
| Tensile strength | 1158 MPa | 167953 psi |
| Yield strength | 1034 MPa | 149969 psi |
| Elongation | 15% | 15% |
| Bulk modulus | 140 GPa | 20300 ksi |
| Shear modulus | 80 GPa | 11600 ksi |
| Hardness, Brinell | 184 - 235 | 184 - 235 |
| Hardness, Vickers | 220 | 220 |
| Hardness, Knoop | 239 | 239 |
| 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 |
SAE J404
SAE J412
SAE J770
ASTM A322
ASTM A331
ASTM A505
ASTM A519
MIL-SPEC MIL-S-16974
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.