|
Roughing Rolls for Section Mill |
|
HARDNESS DROP |
|
 |
 |
| Distance from
Barrel Surface, mm |
Hs 45-50 °Sh-C x
100 |
|
| |
|
| CHARACTERISTICS |
|
CHEMICAL COMPOSITION |
|
C |
Ni |
Cr |
Mo |
|
1.10-1.40 |
0.50 max |
0.70-1.20 |
0.20-0.50 |
|
1.30-1.50 |
0.50 max |
0.70-1.20 |
0.20-0.60 |
|
1.30-1.50 |
1.00-1.20 |
0.90-1.50 |
0.30-0.60 |
|
|
These rolls stand between steel
and cast iron rolls in carbon content and the
structure consists mainly of cementite in a matrix
of spheroidised pearlite. The carbide phase is
discontinuous throughout the matrix. |
| APPLICATION |
|
MECHANICAL PROPERTIES |
|
|
|
|
°Sh-C |
N/mm2 |
J/cm2 |
|
40-45 |
700-750 |
3.0-6.0 |
|
45-50 |
700-850 |
3.0-6.0 |
|
50-55 |
750-850 |
3.0-6.0 |
|
|
Roughing, Intermediate and
Finishing rolls for section and structural mills.
Applications include heavy section and rail mills,
universal beam mills, medium section mills & billet
mills. Roughing rolls for plate and sheet mills.
Pilger rolls for seamless tube mills. |
