High Speed Steel (HSS) Rolls for Hot Strip Mill

• Condition: New
• Certification: ISO9001
• Standard: GB
• Customized: Customized
• Material: Metal
• Application: Metal Processing Machinery Parts
• Model NO.: 84553000
• Transport Package: Metal Pallet
• Specification: VARIOUS
• Trademark: CAMET
• Origin: China
• HS Code: 84553000

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

Grades	HSC	C	Si	Mn	Ni	Cr	Mo
HCrI	60~75	2.3/3.3	0.3/1.0	0.5/1.2	0.7/1.7	12.0/15.0	0.7/1.5
HCrI	65~80	2.3/3.3	0.3/1.0	0.5/1.2	0.7/1.7	15.0/18.0	0.7/1.5
HCrI	75~90	2.3/3.3	0.3/1.0	0.5/1.2	0.7/1.7	18.0/22.0	1.5/3.0

Physical Properties

properties	Barrel	Nick/corel - grey cast iron	Nick/corel - SG cast iron
Tensile strength (N/mm^2)	850	200	400
Bending strength (N/mm^2)	1300	350	835

 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