Chocky bar is a combination of high chromium and molybdenum white iron metallurgically bonded to a mild steel plate. The hardness of wear-resisting layer is 700 bhn, providing superior wear resistance impact protection. The chocky bars is great hard to protect products, and its very easy to use and installed for that there's no need to pre-heating or past heating.In addition , it is easy to form and weld onto inner or outer contoured surface.