Grade SUP9M
Corresponding Standard JIS G 3311-2016
Cold Rolled Special Steel Strip
Classification Spring Steel
SUP9M Chemical Element Composition Content (%)
Component C Si Mn P S Cr Cu
Minimum Value 0.52 0.15 0.65 - - 0.65 -
Maximum Value 0.6 0.35 0.95 0.03 0.03 0.95 0.3
SUP9M Mechanical Properties
condition Tensile Strength
σb
Mpa
Hardness
HBW
Steel strip Annealing HV: ≤200
Steel strip Cold Rolling HV: 200~290

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