SUP9/55CrMnA/5155 Spring Steel

We offer high-quality SUP9/55CrMnA/5155 spring steel sourced from China, adhering to international standards such as JIS (Japan), ASTM (USA), and GB (China). Available sizes range from 5mm to 300mm in thickness, 40mm to 200mm in width, and 1000mm to 6000mm in length. We can customize sizes based on customer requirements.

The chemical composition of SUP9 steel includes:

• C: 0.52 – 0.6
• Si: 0.17 – 0.35
• Mn: 0.65 – 0.95
• Cr: 0.65 – 0.95
• P: ≤0.035
• S: ≤0.035

Key properties include:

• Tensile strength σb (MPa): ≥1225
• Yield strength σ0.2 (MPa): 1080
• Elongation σ5 (%): ≥9
• Hardness: Hot rolled ≤321HB

Applications include high elasticity components such as machinery parts, springs, and automotive clips. We also provide other spring steel grades like 65Mn, SUP7, SUP7A, SUP10, SK5, in various forms such as bars, coils, and wires.

Contact us for full CO, CQ, and related documents for your order. We support import and transportation services. Located in Hanoi, Vietnam.