GMW-universal standard - cold rolling

Cold rolling is to use hot rolled steel coils as the raw material, after acid pickling to remove oxide skin for cold rolling, the finished product is hard, because of cold work hardening caused by deformation of continuous cold rolling hard roll strength, increase hardness, toughness and plastic index decreased, so the stamping performance will[more]

IF steel (InterstitialFreeSteel), also called interstitial steel, is after rimmed steel and aluminium killed steel industrial automation widely applied and generation of deep drawing steel. The emergence of the IF steel sheet one of the earliest dates back to 1960 Japanese researchers in an accidental opportunity successfully developed this kind of special steel. The characteristics[more]

Is a kind of high strength low alloy steel welding low carbon structural steel. Its carbon content is usually less than 0.25%, than the ordinary carbon structural steel had a higher yield point or yield strength sigma sigma s 0.2 (30 ~ 80 KGF/was) and showed sigma sigma b/s (0.65 ~ 0.95), good cold and[more]