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- Brand Name:cwssteel
Spring Steel
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.
Equivalent grades
GB
ASTM
65Mn
1566
Chemical
Composition
C
Si
Mn
S
P
Cr
Ni
0.62~0.7
0.17~0.37
0.9~1.20
≤0.035
≤0.035
≤0.25
≤0.30
Mechanical Property
Tensile Strength Rm (MPA)
Yield Strength ReH (MPa)
Elongation (%)
Reduction of area Ψ
>980
>784
>8
>30
Applications
Used for small size flat round spring, seat cushion spring, spring wind, spring ring, valve spring, clutch reed, brake spring and cold drawn steel cold roll coil spring
