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 PF 202

Alloy Chilled Cast Iron rolls (rings) is one kind of cast iron roll making use of super-cooling of model surface and adding Ni, Cr, Mo alloy elements. There is no free graphite in the microstructure of the working layer, so it results in high hardness and excellent wear resistance.

These type of material may be used to produce large scale rolls in double pouring process. The barrel of rolls has high hardness while the neck has high toughness, so these type of rolls exhibit the proper tie of high thermal stability and resistance to accident.

Microstructure:


 
Example of Typical Hardness Profile:

 
Chemical Composition (%)
Symbol
C
Si
Mn
Cr
Ni
Mo
V
CS-1
0.55-0.80
0.20-1.00
0.50-1.30
--
--
0.40-1.50
--
CS-2
0.55-0.80
0.20-1.00
0.40-1.30
0.50-1.50
0.20-1.00
0.40-1.50
--
CS-3
0.35-0.55
0.20-1.00
0.20-1.00
2.50-3.50
0.20-1.00
0.20-1.00
0.02-0.40
CS-4
0.40-0.60
0.20-1.00
1.00-1.80
1.00-2.00
0.20-1.00
1.00-1.80
CS-5
0.95-1.20
0.20-1.00
0.70-1.50
0.50-1.50
0.50-1.50
0.40-1.50
--
 
Physical Properties:
Symbol
Barrel Hardness
HS
Tensile strength
MPa
Elongation %
Impact Value
10 4J/m 2
CS-1
28-43
> 600
> 5
> 8
CS-2
30-45
> 800
> 5
> 8
CS-3
45-65
> 800
> 2
> 5
CS-4
45-65
> 800
> 3
> 4
CS5
40-55
> 700
> 4
> 7
 
Application:
Blooming and slabbing mills, roughing and intermediate stands of section mills, vertical scale-breaking and 2-Hi roughing stands of hot strip mills, 2-Hi roughing stands of plate mills, the back-up rolls of narrow strip mills.
 
The Capacity of making:
Diameter of barrel (mm)
Length of barrel (mm)
weight (t)
X 1500(max.)
3000 (max)
60 (max)

Copyright by Pacific Foundry Company, 2004-2007