Spring steel strip
Steel grade
65Mn,1065,SAE1055,1045,CK50,CK55, CK60,CK67, CK70,CK75, C75Cr1,50CrV4, 51CrV4, 60Si2Mn, etc
Thickness 0.08-4.0mm
Width 3-400mm
Hardness <200HV, 200-300HV, 300-550HV
Edge slit edge; both rounded; one side round, one side slit; square etc
Surface polished (blue, yellow, white, grey-blue, black, bright) or Nature etc
Tolerance thickness +/-0.01mm max; width +/-0.05mm max
Physical propety Tensile strength: 450-1850N/mm2
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