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There are different specification roller. they aresemi-finished products, and the specification is from dia.450mm to dia.1500mm.We can supply the roll at the surface hardness of HSD55-75. And in one roll the hardness error is lessthen 5HSD.The depth of the hardness is morethen 70mm at radius in material 50Cr5MoV. We can supply the roll with the material such as Cr2%(9Cr2Mo,86CrMoV7),Cr3%(40Cr3MoV,70Cr3NiMo,70Cr3Mo,MC3),Cr4%(45Cr4NiMoV)andCr5%(50Cr5MoV).......Also we can supply the middle axle of the Back-up roll in material 55Cr,35CrMo or 42CrMo. And the price quotation is in acdordance with the customers' drawings and the weights of the products.
FOUR ROLLER REVERSIBLE COLD ROLLING MILL Back-up Roll