Wire spring

steelconstructionfor machinery

Commodity: Cold drawn spring steel wire 1. Material JIS: SUP9; SUP9A; SUP10; SUP7; SUP12; SUP12V; SUP6;SUP7. SAE: SAE9254; SAE5160;SAE9260;SAE6150. DIN: 55Cr3; 51CrV4; 52CrMoV4; 55Si7; 60Si7; 28MnSiB; 58CrMnB4; 27MnMoVB; 65Mn; 55CrSi; 50CrV; 60Si2Mn; CK67; 60Si2CrVA; 60Si2CrMnA. 2. Usage Auto parts; appliance manufacturing; construction machinery; bearing; mattress sofa; regulation spring; etc 3. Size Diameter: 3mm-20mm 4. Material chemical composition Steel grade - C - Mn - S - P - Si - Cr - Cu SUP9 - 0.52～0.60 - 0.65～0.95 - ≤ 0.030 - ≤ 0.030 - 0.17～0.37 - 0.65～0.95 - ≤0.25 SAE9254 - 0.51～0.59 - 0.60～0.90 - ≤0.040 - ≤ 0.035 - 1.20～1.60 - 0.60～0.80 - SAE6150 - 0.48～0.53 - 0.70～0.90 - ≤ 0.035 - ≤ 0.040 - 0.15～0.35 - 0.80～1.10 - 55CrSi - 0.50～0.60 - 0.5～0.8 - ≤ 0.030 - ≤ 0.030 - 1.20～1.60 - 0.50～0.80 - ≤ 0.02 60Si2Mn - 0.56～0.64 - 0.60～0.90 - ≤ 0.035 - ≤ 0.035 - 1.60～2.00 - ≤ 0.035 - ≤0.25 100Cr6 - 0.95～1.05 - 0.25～0.45 - ≤0.025 - ≤0.025 - 0.15～0.35 - 1.40～1.65 - ≤0.25 SUP10 - 0.47～0.55 - 0.65～0.95 - ≤ 0.030 - ≤ 0.030 - 0.15～0.35 - 0.80～1.10 - ≤0.25 SUP6 - 0.56～0.64 - 0.60～0.90 - ≤ 0.035 - ≤ 0.035 - 1.50～2.00 - ≤ 0.035 - ≤0.25 5. Hardness: ≤ 32HRC or 25-30HRC Straightness: 0.4%. 6. Tensile strength/MPa Diameter/mm - Tensile - strength/Mpa - - Grade B - Grade C - Grade D 3.00 - 1370-1670 - 1570-1860 - 1710-1960