Hangzhou designed for high abrasion 50CrV4 spring steel hardenability 50CV4 50CV4 carbon steel

 50CrV4 steel is an alloy spring steel, 50CrV4 German standard steel, corresponding to China is 50CrVA. Scope 2 features and good mechanical properties and process performance, high hardenability, adding vanadium steel grain refinement, lower thermal sensitivity, improves the strength and toughness, high fatigue strength, yield ratio is also relatively high, but poor welding, cold deformation due to low plasticity. A spring is higher, the larger cross-section as the important spring and high load operating temperature <300 ℃ of the valve spring, piston spring, valve spring. 3 Chemical composition Carbon C: 0.46 ~ 0.54 Si Si: 0.17 ~ 0.37 Manganese Mn: 0.50 ~ 0.80 Sulfur S: ≤0.030 phosphorus P: ≤0.030 chromium Cr: 0.80 ~ 1.10 Ni-Ni: ≤0.35 copper Cu: ≤0.25 vanadium V: 0.10 to 0.20 4 Mechanical Properties Tensile strength σb (MPa): ≥1274 (130) yield strength σs (MPa): ≥1127 (115) Elongation δ5 (%): ≥10 section shrinkage ψ (%): ≥ 405 Common Specifications Name Specification Material farm price spring steel 50CrV4 2.5 * 1250 Laiwu spring 6800 Laiwu Steel 50CrV4 3.0 * 1250 6800 spring steel 50CrV4 3.5 * 1250 Laiwu spring 6800 Laiwu Steel 50CrV4 4.0 * 1250 6800 spring steel 50CrV4 4.5 * Laiwu Steel 6800 1250 spring steel 50CrV4 5.0 * 1250 Laiwu spring 6800 Laiwu Steel 50CrV4 5.5 * 1250 6800 spring steel 50CrV4 6.0 * 1250 Laiwu spring 6800 Laiwu Steel 50CrV4 6.5 * 1250 6800 spring steel 50CrV4 7.0 * 1250 Laiwu spring 6800 Laiwu Steel 50CrV4 7.5 * 1250 6800 spring steel 50CrV4 8.0 * 1250 Laiwu spring 6800 Laiwu Steel 50CrV4 8.5 * 1250 6800 spring steel 50CrV4 9.0 * 1250 Laiwu spring 6800 Laiwu Steel 50CrV4 10.0 * 1250 6800 spring steel 50CrV4 11.0 * 1250 Laiwu Steel 6800 spring steel 50CrV4 12.0 * 1250 Laiwu 68,006 brands in each country corresponds to US grades: G61500 corresponding to Japanese brands: SUP10 correspond Domestic brands: 50CrVA correspond Britain grades: 735A51 for French grades: 50CrV4