BR Forging

Double Poured Alloy Indefinite Chill

These Rolls are made of a high alloyed shell iron and a soft grey iron or ductile iron core metal depending on neck strength requirement. The shell material consists of predominantly Bainitic or Martensitic matrix with free carbides with small quantities of fine flake graphite, which imparts excellent wear and abrasion resistance coupled with resistance to fire cracking. These rolls are cast both through centrifugal and static route.

Application: These rolls are used in finishing stands of Rod mills and for narrow strip mills.

   

CHEMICAL COMPOSITION

Shell
HardnessCMnSiPSNiCrMoUTS
Kgmf/mm.sq
70-753.10/3.400.60/0.900.70/1.100.10
Max.
0.050
Max.
2.50/4.001.20/1.600.25/0.4040-45
75-803.10/3.400.60/0.900.70/1.100.10
Max.
0.050
Max.
2.50/4.501.40/1.800.25/0.4040-45
80-853.20/3.500.60/0.900.70/1.000.10
Max.
0.050
Max.
4.00/4.501.60/1.900.25/0.4045-50

Core

         
Grey Iron3.10/3.400.50/0.801.40/1.800.15
Max.
0.050
Max.
0.50/1.000.40
Max.
——20-25
Ductile/Nodular Iron3.10/3.400.50/0.801.80/2.200.10
Max.
0.015
Max.
1.00
Max.
0.40
Max.
—–35-45