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Forged steel work roll performs as a tool to transform materials under normal room temperature,Website:http://www.kdroll.com, therefore , it is  the most wear and tear spare parts during the rolling process . With 2%Cr, 3%Cr, 5%Cr material series , we have greatly improved our products both in terms of quality and diversification .Table.1 Physical Performances SymbolHardnessHardness UniformityDepth of hardnessSize9Cr2Mo85-102 HSD3HSD8~15mm?200-600mmMC385-102HSD3HSD15-30mm?200-1000mmMC585-102HSD3HSD20-40mm?300-1000mmPic.1 Harndess Curve of Work Roll Table.2 Roll ApplicationsSymbolType of materi