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Contact SupplierWe are offering backup roll.
01.specification diameter:dn240mm to dn1050mmlength: no more than 6000mmweight: no more than 85tmaterial: 70cr3mor,9cr2mor,86crmov7,mc3,mc5,etcbarrel hardness: hsd75-90(high hardness)barrel hardness evenness:±1.5hsd hardness depth(one side): 15-100mmneck rings and bearing sleeves can be fitted when required. 02.manufacturing process: ingot--forging--ut--rough machining--ut--second rough machining--ut--magnetic particle test--quenching--magnetic particle test--finished machining--ut--magnetic particle test--oiling--packing--shipping 03.application--- the product is always used in hot strip mills,stecket mills and cold rolling mills.