Centrifugal Casting High Chrome Roll

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Centrifugal Casting High Chrome Roll

Centrifugal Casting High Chrome Roll

Thanks to its high content of M7C3, type carbide in range of 20-30% and discontinuous network distribution of carbide, the roll offers a high wear resistance performance. The matrix is finely-disseminated secondary carbides (M7C3、M23C5 and M3C types), increasing therefore the wear resistance of roll, The Cr2O3 enriched oxide film on the roll surfaces is highly resistant to oxidization and plastic strain, making the roll extremely suitable for steel hot milling process.

Centrifugal Casting High Chrome Roll

Mechanical properties

Hardness of shell               HSD65-85
Hardness of core               HSD35-48
Tensile Strength of core               ≥450MPa

Chemical Properties

C

Si

Mn

Cr

Ni

Mo

2.4/3.0

0.4/0.6

0.8/1.2

16.0/20.0

0.8/1.5

0.8/2.0

 

Application

Mainly used for the front 3 and 4 finishing racks of continuous strip mill and the post rack rough mill.