›

40CrMnMo hot rolled steel round bars possess good comprehensive mechanical properties, hardenability, and high tempering stability after quenching and tempering. They are primarily used in the quenched and tempered state for manufacturing heavy-duty, large cross-section components such as gear shafts, gears, rear axle axles, and steam turbine parts. This material can also serve as an alternative to 40CrNiMo.
| Material Grade | GB/T 3077 | Standard | GB/T 3077 |
| Thickness Range | N/A (Round Bar) | Width Range | N/A (Round Bar) |
| Length Range | Customizable | MOQ | 1 Ton |
| Lead Time | 7-15 days | Port of Shipment | Shanghai / Tianjin |
| C | 0.37-0.45 | Si | 0.17-0.37 |
| Mn | 0.90-1.20 | Cr | 0.90-1.20 |
| Mo | 0.20-0.30 | Tensile Strength (Rm) | 834 MPa |
| Yield Strength (Rp0.2) | 823 MPa | Impact Energy (KV) | 41 J |
| Elongation (A) | 33% | Hardness (HB) | ≤233 HB |
Our team of steel experts is ready to help you source any product from our global network of mills and warehouses.