Delivery condition (strip,coil,sheet) Grade based on DIN Standard High quality heat treating steel strip, coil, sheet
supply capacity and condition
Hardness<20HRC Hardness 29-55HRC
annealed hardened and tempered
thickness Width thickness Width
High carbon steel CK50,CK55, CK60,CK67, CK70,CK75, C75Cr1 0.15-3.0mm 3-320mm 0.15-2.5mm 3-300mm
Alloy spring steel 50CrV4, 51CrV4, 60Si2Mn 0.15-3.0mm 3-320mm 0.15-2.5mm 3-250mm
Stainless spring steel 3Cr13-6Cr13 0.15-3.0mm 3-320mm 0.15-2.5mm 3-250mm
Edge process slit edge; both rounded; one side round, one side slit; square etc
Finish surface polished (blue, yellow, white, grey-blue, black, bright) or Nature etc
Tolerance thickness +/-0.01mm max; width +/-0.05mm max
Physical property Tensile strength: 450-1850N/mm2