1, s136 tool steel .2, Hardness: HRC=50~52 3, HBS<=235 4, Usage: plastic mould, s136 tool steel 1. Size:RoundDiameterLength50mm-600mm2000mm-5800mmSteel plateThicknessWidthLength20-400mm185-2200mm2000mm-5800mm 2. Delivery Condition: 1. Hot rolled , black, 2. Hardness: HRC=28--33,3. Annealed Hardness: HBS<=235. 3. General Good mechanincal property, make surface have equal hardness after deal with ...