Alloy Steel 8750
Material Data Sheet
Alloy Steel 8750 is a low carbon steel with a medium manganese content. Known for its good hardening properties, Alloy Steel 8750 also offers users fair machinability as well as excellent cold bending and forming operations. It has a decent level of weldability and is perfect for shafting and for applications that do not require the high levels of strength found in higher carbon and alloy steels. Alloy Steel 8750 is popular in the aerospace, defense, oil and gas, and automotive industries.
Chemical Composition
| Chemistry | Content(%) |
|---|---|
| Iron, Fe | 96.44 – 97.49 |
| Manganese, Mn | 0.75 – 1.0 |
| Carbon, C | 0.48 – 0.53 |
| Nickel, Ni | 0.4 – 0.7 |
| Chromium, Cr | 0.4 – 0.6 |
| Silicon, Si | 0.2 – 0.35 |
| Molybdenum, Mo | 0.20 – 0.30 |
| Phosphorous, P | ≤ 0.04 |
| Sulfur, S | ≤ 0.04 |
Physical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.75 g/cm3 | 0.280 lb/in3 |
Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Tensile Strength | 1476 MPa | 214100 psi |
| Yield Strength | 1338 MPa | 194100 psi |
| Modulus of Elasticity | 201 – 209 GPa | 29200 – 30300 ksi |
| Bulk Modulus | 160 – 170 GPa | 23200 – 24700 ksi |
| Shear Modulus | 81 – 82 GPa | 11700 – 11900 ksi |
| Poisson’s Ratio | 0.27 – 0.30 | 0.27 – 0.30 | Elongation at Break | 12% | 12% |
| Hardness, Brinell | 423 | 423 |
