GB 65Mn Spring Steel supplier in China

Miele Metal Limited can supply the round bar, steel flat bar, plate, hexagonal steel bar and steel square block. AISI 65Mn steel Round bar can be saw to your required lengths as one offs or multiple cut pieces. 65Mn steel Rectangular pieces can be saw from flat bar or plate to your specific sizes. And Ground Spring Steel bar can be supplied, providing a quality precision finished bar to tight tolerances.

Applications

After heat treatment and cold drawing hardening, high strength, it has a certain toughness and plasticity; In the same surface hardening case, completely and the fatigue limit and alloy spring. 

 

 

Chemical composition

C(％) 0.62-0.70

Si(％) 0.17-0.37

Mn(％) 0.90-1.20

P(％) ≤0.035

S(％) ≤0.035

Cr(%) 0.25max

Ni(%) 0.25max

 

 

Tensile strength:σb (MPa)≥980

Conditions to yield strength:σ0.2 (MPa)≥785

Elongation:δ 5 (%)：≥8

Reduction of area:ψ (%)：≥30

Hardness (Hot Rolled):≤302HB;