ROLLS DIVISION
SG IRON PEARLITIC ROLLS
Microstructure of SG
pearilitic rolls
Distance from surface - mm
Hardness - ShC
CHARACTERISTICS
Spheroidal Graphite Iron Rolls are structurally characterized as having graphite in nodular form instead of being in flakes as characterized in normal Cast Iron Rolls. The matrix structure varies from Ferrito-Pearlitic and Pearlitic together with different carbide content and graphite in the form of spheroid / nodules.
SUPPLY CONDITIONS
- CO2 PROCESS
- PROOF MACHINED
- FINAL SIZE MACHINED/ BEARING SIZE
- HEAT TREATMENT
- GRADE CONFIRMATION THROUGH SPECTROMETER AND UTM MACHINE
CHEMICAL COMPOSITION
| SYMBOL | HARDNESS | C% | MN% | SI% | S% | P% | CR% | NI% | MO% | UTS KGL/MM.SQ |
| SGP-40 | 40-50 | 3.00 3.30 |
0.30 0.60 |
1.50 2.30 |
0.015 MAX |
0.10 MAX |
0.30 MAX |
1.25 1.75 |
0.25 0.40 |
50-65 |
| SGP-50 | 50-60 | 3.00 3.30 |
0.30 0.60 |
1.50 2.30 |
0.015 MAX |
0.10 MAX |
0.40 MAX |
1.50 2.00 |
0.25 0.50 |
50-60 |
| SGP-60 | 60-70 | 3.10 3.50 |
0.50 1.00 |
1.30 1.80 |
0.015 MAX |
0.10 MAX |
0.30 0.80 |
1.50 2.00 |
0.30 0.60 |
50-60 |
| SGP-70 | 70-75 | 3.10 3.50 |
0.50 1.00 |
1.30 1.80 |
0.015 MAX |
0.10 MAX |
0.30 0.80 |
1.50 2.00 |
1.60 0.60 |
40-60 |
APPLICATIONS
These rolls are suitable for Roughing and Intermediate Mill stands of Blooming/Slabbing, TMT Bars Mills and Wire Rod mills. Rolls for Intermediate and Finishing Stands of Structure and Strip Mills