Applications
- Shafts, crankshafts, and drive shafts subjected to high stress.
- Gears and pinions in industrial machinery.
- Structural parts in the aerospace and automotive industries.
- Rollers and components subjected to wear in the mining and oil industries.
- Bolts, fasteners, and high-strength fastening components.
- Hydraulic cylinders and pressure system components.
Characteristics:
- Alloy steel with chromium and molybdenum.
- Heat treated (T), which improves its strength and hardness.
- High tensile and impact strength.
- Good resistance to wear and fatigue.
- Moderate weldability, requires preheating and post-treatment.
Chemical Composition
| Variant | %(C) Carbono | %(Mn) Manganeso | %(P) Fósforo | %(S) Azufre | %(Si) Silicio | %(Cr) Cromo | %(Mo) Molibdeno |
|---|---|---|---|---|---|---|---|
| 4140 T (Round) | 0.38% - 0.43% | 0.75% - 1.00% | 0.035% Máximo | 0.24% - 0.33% | 0.15% - 0.35% | 0.80% - 1.10% | 0.15% - 0.25% |