Alloy Steel 4140
Description
4140 is a chromium-molybdenum alloy steel known for its excellent strength, toughness, and fatigue resistance. It can be heat treated to various hardness levels and offers good machinability in the annealed condition.
Material Properties
| density | 7.85 |
|---|---|
| hardness | HRC 28-32 (annealed) |
| tensile_strength | 655 MPa |
| yield_strength | 415 MPa |
| elongation | 25% |
| corrosion_resistance | Poor - requires coating |
Applications
Gears, shafts, axles, connecting rods, machinery components, oil and gas tools