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High-carbon steel base adamite ring

      Properties

 The carbon content of steel base adamite is between steel and iron. The material holds the strength and toughness of steel rolls, and meanwhile possesses the high hardness and good wear-resistance as the iron roll. In order to improve the wear-resisitance, the content of carbon is controlled nearly the same as iron. The microstructure of the shell of high-carbon steel base adamite ring consists of matrix and carbides. It features the tiny hardness fall in the working layer and even wear-resistance, ensuring the consistency in dimension when rolling large-section pieces. Graphite steel is used as the core material due to its high strength meeting the requirements of big rolling force.

              

      Mechanical properties

Hardness of shell
HSD40-60
Hardness of core
HSD38-48
Tensile Strength of core
450MPa

 

      Chemical analysis

Grade
C
Si
Mn
Ni
Cr
Mo
AD180
1.7/1.9
0.3/0.8
0.6/1.1
0.5/2.0
0.8/1.5
0.2/0.6
AD190
1.8/2.0
0.3/0.8
0.8/1.2
1.0/2.0
1.5/3.5
0.2/0.6
AD200
1.9/2.1
0.3/0.8
0.8/1.2
0.6/2.5
0.6/2.0
0.3/0.8

 

       Applications

        Mainly used for cantilever and edging stand or plane-barrelled roll of H-beam mills.

 

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