65Mn Spring Steel with Good Quality

 Spring Steel 

Chemical ingredients: C :0.62~0.70, Si:0.17~0.37 , Mn:0.90~1.20 , S :≤0.035 , P :≤0.035 ,Cr:≤0.25, Ni:≤0.30, Cu:≤0.25

Mechanical properties: Tensile strength σ b (MPa) : 825 ~ 925 Yield strength σ s (MPa) : 520 ~ 690 Elongation δ 10 (%) : 14 ~ 22.5 Reduction of area ψ (%) : no more than 10 Hardness: hot rolled, acuities 302 hb; Cold drawn + heat treatment, acuities 321 hb

Application: Used for small size all kinds of flat, round spring, seat cushion spring, spring wind, also can make spring ring, valve spring, clutch reed, brake spring and cold drawn steel cold roll spiral spring.