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Delivery condition (strip,coil,sheet)
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Grade based on DIN Standard
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High quality heat treating steel strip, coil, sheet
supply capacity and condition
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Hardness<20HRC
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Hardness 29-55HRC
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annealed
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hardened and tempered
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thickness
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Width
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thickness
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Width
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High carbon steel
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CK50,CK55, CK60,CK67, CK70,CK75, C75Cr1
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0.15-2.5mm
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8-600mm
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0.15-2.5mm
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8-300mm
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Alloy spring steel
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50CrV4, 51CrV4, 60Si2Mn
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0.20-2.2mm
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8-180mm
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0.20-2.2mm
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8-180mm
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Stainless spring steel
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3Cr13-6Cr13
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0.20-2.5mm
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8-150mm
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0.20-2.5mm
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8-150mm
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Edge process
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slit edge; both rounded; one side round, one side slit; square etc
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Finish surface
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polished (blue, yellow, white, grey-blue, black, bright) or Nature etc
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Tolerance
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thickness +/-0.01mm max; width +/-0.05mm max
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Physical property
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Tensile strength: 450-1850N/mm2
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