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Indefinite chilled cast iron ring

      Properties

The shell has a remarkable mechanical performance. With virtually no fall off in hardness due to the quantity of graphite remains basically unchanged throughout the working layer. The hardness of roll depends mainly on the type of matrix, namely sorbite or martensite.

               

      Mechanical properties

 

Hardness of shell
HSD60-83
Hardness of core
HSD35-55
Tensile Strength of core
450MPa

 

     Chemical analysis

Grade
C
Si
Mn
Ni
Cr
Mo
Indefinite I
2.9/3.6
0.6/1.2
0.4/1.2
0.7/1.2
0.5/1.0
0.2/0.6
IndefiniteII
2.9/3.6
0.6/1.2
0.4/1.2
1.0/2.0
0.5/1.0
0.2/0.6
IndefiniteIII
2.9/3.6
0.6/1.2
0.4/1.2
2.0/3.0
0.7/1.2
0.2/1.0
IndefiniteIV
2.9/3.6
0.6/1.2
0.4/1.2
3.0/4.8
1.0/2.0
0.2/1.0

 

     

      Applications

          For the finishing stands of continuous rolling mill of strip and bar, the pre-finishing stands of high speed wire, the intermediate and the front of finishing stands of small section, also utilized as thin plate and straightening roll.           

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