6150 spring steel is a type of steel. Good mechanical properties and technological properties, high hardenability, adding vanadium to refine the grain of steel, reduce overheating sensitivity, improve strength and toughness, have high fatigue strength, high yield ratio, but poor weldability and low cold deformation plasticity.
Supply Form & Size
| Form of Supply | Size(mm) | Length(mm) |
| Round bar | 6.0mm-1200mm | 2.5m-10m |
Chemical Composition&Related Specifications
| Grade | C | Si | Mn | P | S | Cr |
| 6150 | 0.48-0.53 | 0.15-0.35 | 0.7-0.9 | ≤0.035 | ≤0.04 | 0.8-1.1 |
Brand comparison table
| AISI/SAE | DIN/EN | BS | JIS/KS | China |
| 6150 | 51CrV4(1.8159) | 51CrV4(1.8159) | SUP10 | 50CrVA |
Mechanical Property
| tensile strength σb (MPa) | ≥1274(130) |
| yield strength σs (MPa | ≥1127(115) |
| hardness | hot-rolling≤321HB;Cold drawing+heat treatment≤321HB |
