Steel is a metal alloy chiefly consisting of iron in addition to small amounts of carbon based on the grade and quality of the steel. Alloy steel is a type of steel to which one or more elements besides carbon have been added to form a desired mechanical property. AISI 4142H is a chromium-molybdenum steel whose mechanical properties and toughness can be improved after heat treatment.
| Element | Content(%) |
|---|---|
| Iron, Fe | 96.615 - 97.91 |
| Chromium, Cr | 0.75 - 1.2 |
| Manganese, Mn | 0.65 - 1.1 |
| Carbon, C | 0.39 - 0.46 |
| Silicon, Si | 0.15 - 0.30 |
| Molybdenum, Mo | 0.15 - 0.25 |
| Sulfur, S | ≤ 0.040 |
| Phosphorous, P | ≤ 0.035 |
| Properties | Metric | Imperial |
|---|---|---|
| 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 |
| Hardness, Brinell | 187 - 229 | 187 - 229 |
| Hardness, Vickers | 218 | 218 |
| Hardness, Knoop | 230 | 230 |
| Hardness, Rockwell C | 15 | 15 |
| Hardness, Rockwell B | 94 | 94 |
| 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 |
DIN 1.7223
UNI 38 CrMo 4
ASTM A304
SAE J1268
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.