Place of Origin
Guangdong, China
Dimensions
0.20-2.5mm*10-300mm
Model Number
CK75 C75 SAE 1075 steel
Application
roller shutter door, rolling shutter door
Processing Service
65mn spring steel strip
Surface
polished (blue, yellow, white, grey-blue, black, bright) or Nature etc
Hardness
<20hrc, 20-30hrc, 30-55hrc
Tolerance
thickness +/-0.01mm max; width +/-0.05mm max
Heat Treatment
Quenching+Tempering
Process
Tempered Steel Strip
Certificate
ISO9001:2008/SG-S/BV
Material
hardened tempered coil for cold rolled steel
Product Name
Roller shutter door spring steel strip for cold rolled spring 65Mn
Packing
Hardened and tempered spring steel 65Mn