... and spacers, cold and hot cutting linear blade, Square profiled cutting blade, Wear plates, Sheet metal coils cutting, ... hardness, high toughness, and high hardenability, etc. 7 Blade Incision: Smooth without burr 8 Working Time: A long ... Composition Weight % C Cr Mo W V Si Mn S P0.45~0.554.50~5.51.75~2 ... four cutting edges of high strength HMB steel blade cuts 40 thousand ton steel,the quantity is ...