Blue tempered steel strip

Hardened and Tempered Steel strip has been subjected to a series of heating and cooling furnaces to acquire a specified hardness. we further process the steel for color and surface appearance. Two typical colors we produce are Blue and Navy.  Others are available on request.The GWLY Companies operate the largest Hardening and Tempering facility in china and offer technical knowledge and service. Count on GWYL Companies to provide the good quality Hardened and Tempered Steel for your application.  Commonly referred to as Spring Tempered Steel,Polished and Blued Spring Steel, Scaleless Blue Spring Steel.