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

0.15-2.5mm

8-600mm

0.15-2.5mm

8-300mm

Alloy spring steel

50CrV4, 51CrV4, 60Si2Mn

0.20-2.2mm

8-180mm

0.20-2.2mm

8-180mm

Stainless spring steel

3Cr13-6Cr13

0.20-2.5mm

8-150mm

0.20-2.5mm

8-150mm

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