Alloy STEEL BAR H13 Round size: diam: 2-200mm,length:1-6m. produce cutting tools under high load ALLOY STEEL H13Anneal temperature: 840- ... hardening and tempering: 63-66 Characteristic:Tungsten-molybdenum high speed steel developed by China, high performance in toughness ,hardness, high ... tools to bear impact force ,such as gear shaper cutter, milling cutter,screw tap,drill bit etc.Also can be used in ...