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High Chrome Cast Iron Roll (HCr)

Price $2300.00
Min Order 1 Piece
Availability In Stock
Shipping From Beijing, China
Popularity 408 people viewed
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Customized:
Customized
Condition:
New
Type:
Steel Rolling Equipment
Certification:
ISO
Casting Method:
Centrifugal Cast
Barrel Hardness:
65-95hsd
Core Hardness:
32-45hsd
Weight:
1-50tons
Trademark:
CAMET
Transport Package:
Steel Rack
Specification:
ISO
Origin:
China
Product Description
High chrome cast iron roll

 Properties
Thanks to its high content of M7C3 type carbide in the range of 20-30% and discontinuous network distribution of carbide, the roll offers a high wear-resistance performance. The matrix consist of tempered martensitic and sorbite with finely-dispersed secondary carbides (M7C3, M23C6 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 rolling process.
 
Chemical Analysis
GradesHSCCSiMnNiCrMo
HCrI60~752.3/3.30.3/1.00.5/1.20.7/1.712.0/15.00.7/1.5
HCrII65~802.3/3.30.3/1.00.5/1.20.7/1.715.0/18.00.7/1.5
HCrIII75~902.3/3.30.3/1.00.5/1.20.7/1.718.0/22.01.5/3.0
Mechanical properties
propertiesBarrelNick/corel - grey cast ironNick/corel - SG cast iron
Tensile strength (N/mm2)850200400
Bending strength (N/mm2)1300350835
Microstructure
HCrI: bainite + martensite + carbide
HCrII: tempered martensite + eutectic carbide + small percentage secondary carbide
HCrIII: tempered martensite + eutectic carbide + small percentage secondary carbide
Application
Work rolls for roughing stands and front finishing stands of hot strip mill, work rolls for wide and medium plate mill

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