Alloy Steel Round Bar
Overview
High-performance steel formulated with chromium, molybdenum, or nickel. Designed for components requiring high tensile strength, toughness, and wear resistance under stress.
Key Features
- Diameter: 9mm - 250mm
- High Tensile Strength
- Excellent Toughness
- Heat Treatable
Grade Deep-Dives
Cr-Mo alloy steel, 1000+ MPa after Q+T — equivalent to AISI 4140 / DIN 42CrMo4
View Details →SCM415Low-carbon Cr-Mo case-hardening steel, surface 58–62 HRC after carburizing — equivalent to AISI 5115 / DIN 16MnCr5 / 18CrMo4 (1.7243)
View Details →SCM420Cr-Mo case-hardening steel, higher core strength than SCM415 — equivalent to AISI 4120 / DIN 20MnCr5 / 20CrMo4 (1.7321)
View Details →SNCM220Ni-Cr-Mo case-hardening steel, excellent core toughness and impact resistance — equivalent to AISI 8620
View Details →6140Cr-V hand tool forging steel, HRC 40–48 after Q+T, ultra-low sulfur (S ≤0.004%) for fatigue life — near equivalent to SAE 6140 / GB 40CrV
View Details →6135High-toughness Cr-V tool steel, HRC 34–42 after Q+T, superior impact resistance vs 6140 — for large-section forgings and impact tools
View Details →SUP9Mn-Cr spring steel (JIS G4801), tensile ≥ 1230 MPa after Q+T — for leaf springs and stabilizer bars, near AISI 5155 / EN 55Cr3
View Details →Or call +886-424078309 or email [email protected]