60SiCr7 Spring Steel

chemical composition:

Carbon C: 0.52～0.60

Silicon Si: 1.50～2.00

Manganese Man: 0.60～0.90

Sulfur S: ≤0.035

Phosphorus P: ≤0.035

Chromium Cr: ≤0.35

Nickel Ni: ≤0.35

Copper Cu: ≤0.25

●Mechanical properties:

Tensile strength be(Map): ≥1274(130)

Yield strength as (Map): ≥1176(120)

Elongation δ10 (%): ≥6

Area shrinkage ψ (%): ≥30

Hardness: hot rolling, ≤302HB; cold drawing + heat treatment, ≤321HB

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