Round Bars
4140
Alloy Steel - High quality round bars.
MOQ: Contact for details
Diameter: Wide range available
Condition: Rolled / Forged / Bright
Alloy Steel
4140
Medium-carbon Cr-Mo alloy (≈0.38-0.45%C, Cr ≈0.9-1.2%, Mo ≈0.15-0.30%). Excellent hardenability, used for gears, crankshafts, spindles. Typical tensile range when hardened/tempered ~850-1000 MPa (depends on condition). Excellent for quench & temper cycles.
Key Features
- Excellent hardenability
- High tensile strength
- Versatile alloy
Applications
- Gears
- Crankshafts
- Spindles
Specifications
Contact us for detailed chemical composition and mechanical properties.
Request Datasheet