... knives 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 ... 51.0~2.04.5~7.00.8~1.20.3~1.0σb35004100N/mm2HRC61~63αk 22. ... the four cutting edges of high strength HMB steel blade cuts 40 thousand ton steel,the quantity is ...