Narrow spring steel strip ck67
Grade: ck67,ck70 ck75(SAE 1065, SAE 1070, SAE 1075)
Size:0.20-2.5mm*4-30mm
Hardness: 18-30hrc
Surface: bright
Edge: rounded, slit
Coil weight: 200-250kg or as your requirement
Standard of surface: No flaw, burr, rust.
Yield Strees(Strength): 370-1175 N/mm2
Tensile Strength: 540-1275 N/mm2
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