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High speed steel roll

 

      Properties

        The shell is a high carbon alloy steel containing Cr,Mo,W,V and Nb.The Microstructure consists of complex carbides embedded in a tempered martensitic matrix.Control of the carbon and a complex heat treatment allows the optimization of wear resistance,thermal fatigue resistance and oxide film formation,whilst maintaining low residual stress values.

         

 

        Chemical Analysis
Code
HSC
C
Si
Mn
Ni
Cr
Mo
V
W
HSS
75~95
1.5/2.0
0.3/1.0
0.4/1.2
0.0/1.5
3.0/8.0
2.0/8.0
2.0/9.0
0.0/8.0
S-HSS
75~95
0.6/1.2
0.8/1.5
0.5/1.0
0.2/1.2
3.0/9.0
2.0/5.0
0.4/3.0
0.0/3.0
        Mechanical properties

properties
Barrel
Nick/corel – SG cast iron
Tensile strength (N/mm2)
≥760
≥760
Bending strength (N/mm2)
770~1020
425~500

 
        Microstructure

          Tempered martensite + small percentage bainite + carbide

 

        Application

          Work rolls for roughing stands and front finishing stands of strip mill, work rolls for cold strip mill

 

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Contact Us: liweifeng@camet.com.cn kangxiangguang@camet.com.cn  
Tel: +86-10-8858-8886     Fax: +86-10-8858 9776