High chrome cast iron centrifugal rolls

Author:管理员Clicks:891 Time:2015-06-10

 

Description:

The working layer of High chrome cast iron centrifugal rolls contains large amount of separated high hardness carbide,and is covered by oxide film which is highly against the oxidation. To be cautious, the thermal conductivity of working layer is quite low, in case to decrease the thermal stress, it is necessary to cool it by water. However, during the working procession, the rolls perform better wear resistance and anti-accidents.

Physical properties & Application:

Material code

Barrel hardness(HSD)

Neck hardness (HSD)

Tensile strength (Mpa)

Application

HCrl I

60-70

32-45

350

Wire rod finishing, plate, finishing with a coarse

HCrl  II

65-80

32-45

350

Wire rod finishing, plate ,finishing with a coarse

HCrl III

70-90

32-45

350

Wire rod, cold and hot strip finishing, flat

Chemical analysis:

Material code

C

Si

Mn

Ni

Cr

Mo

V

HCrl I

3.00-3.30

0.30-1.00

0.50-1.20

0.70-1.70

12.00-15.00

0.70-1.50

0.10-0.40

HCrl  II

3.00-3.30

0.30-1.00

0.50-1.20

0.70-1.70

15.01-18.00

0.70-1.50

0.20-0.40

HCrl III

3.00-3.30

0.30-1.00

0.50-1.20

0.70-1.70

18.01-22.00

1.50-3.00

0.20-0.40