Alloy Steel 8615
Material Data Sheet
Alloy steel 8615 is a case-hardening steel containing nickel, chromium, and molybdenum as alloying elements. The alloy shows good strength and toughness properties.
Chemical Composition
| Chemistry | Content(%) |
|---|---|
| Iron, Fe | 96.995 – 98.07 |
| Manganese, Mn | 0.70 – 0.90 |
| Nickel, Ni | 0.4 – 0.7 |
| Chromium, Cr | 0.4 – 0.6 |
| Phosphorous, P | 0.35 |
| Silicon, Si | 0.15 – 0.30 |
| Molybdenum, Mo | 0.15 – 0.25 |
| Carbon, C | 0.13 – 0.18 |
| Sulfur, S | ≤ 0.04 |
Physical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Density | 7.85 g/cc | 0.284 lb/in3 |
Mechanical Properties
| Properties | Metric | Imperial |
|---|---|---|
| Hardness, Brinell | 179 – 235 | 179 – 235 |
| Hardness, Knoop | 229 | 229 |
| Hardness, Rockwell B | 93 | 93 |
| Hardness, Rockwell C | 15 | 15 |
| Hardness, Vickers | 217 | 217 |
| Tensile Strength, Ultimate | 690 MPa | 100000 psi |
| Tensile Strength, Yield | 500 MPa | 72500 psi |
| Elongation at Break | 20% | 20% |
| Modulus of Elasticity | 205 GPa | 29700 ksi |
| Bulk Modulus | 160 GPa | 23200 ksi |
| Poissons Ratio | 0.29 | 0.29 |
| Machinability | 70% | 70% |
| Shear Modulus | 80.0 GPa | 11600 ksi |
Applications
Alloy Steel 8615 is used in the following application areas:
- Arbors
- Bearings
- Bushings
- Cam Shafts
- Differential Pinions
- Guide Pins
- King Pins
- Pistons Pins
- Gears
- Splined Shafts
- Ratchets
