... )super-high-ductility high-chromium cast iron ((Cr22Mo2NiCuWV)Clinker crusher hammer, flat hammer, etc2-4 monthsHRC≥607~10alloyed high manganese steel (Mn13Cr3 ... )super-high manganese steel (Mn17Cr3)large and medium-sized crusher hammer, used mainly in crushing limestone, etcdepending on the materialsHRC≥220 ... hammer1.5 times of the abovehead HRC≥60handle≥ 50 Crusher Hammer