Natural High Carbon Mattress Spring Steel Wire

 Natural High Carbon Mattress Spring Steel Wire

Use for making compression spring, extension spring, torsion spring , mattress spring , flat control cable ,  etc.

Diameter:0.20---12.0mm

Wire Rod Material: 45# ,60#, 65# ,65Mn, 70#,72A,72B, 80#, 82B

Standard: DIN17223, EN10270-1, JIS G 3521, ASTM A227 , GB4357-89

Tensile Strength:  B,C grade / SM,DM;SH,DH/ SWB, SWC

Surface: Smooth , Lead Patented  heat treatment  and Phosphated.

Certificate:  ISO9001 , ISO14001 , SGS