8740 ALLOY BAR
8740 ALLOY BAR
8740 is a Nickel Chrome Moly produced for case hardening. It can often be found in aerospace applications, when wear resistance, toughness, and strength are needed.
APPLICATIONS:
- Aerospace Engine Parts
- Aerospace Subassemblies
- Aerospace Fasteners
Typical Chemical Properties
| Minimum Properties | Tensile Strength , psi | 167,000 |
| Yield Strength, psi | 152,000 | |
| Elongation | 15% | |
| Hardness | bhn 229 | |
| Chemistry | Carbon( C) | .38 -.43% |
| Chrome (Cr) | 0.40-0.60 % | |
| Manganese (Mn) | 0.75-1.00 % | |
| Molybdenum (Mo) | 0.20 – .30% | |
| Nickel ( Ni) | 0.40 -0.70% | |
| Phosphorus (P) | .035% max | |
| Sulphur (S) | 0.04% max | |
| Silicon (Si) | 0.15- 0.30% |
