SG iron rolls, also known as Spheroidal Graphite iron rolls, are a type of mill rolls made of ductile iron.
Kingrail Parts is the largest SG iron roll supplier in China. We can provide SG iron rolls in various sizes. We also provide customized services.
Our SG iron rolls can be used in TMT Rolling Mill, Rebar Rolling Mill, Wire Rod Rolling Mill, Seamless Steel Tube Mills, Intermediate Stand, Finishing Stand, Structural mill, Merchant Mill, Roughing stands.
Chemical Analysis
Designation of rolls |
Material code |
C |
Si |
Mn |
Ni |
Cr |
Mo |
Mg |
CrMo indefinite chilled SG cast iron rolls |
SG Ⅱ |
3.00-3.40 |
1.40-1.90 |
0.20-0.80 |
|
0.20-0.60 |
0.20-0.60 |
≥0.04 |
NiCrMo indefinite chilled SG cast iron rolls (Ⅰ) |
SG Ⅳ |
3.00-3.40 |
1.40-1.90 |
0.40-0.80 |
0.50-1.00 |
0.20-0.60 |
0.20-0.60 |
≥0.04 |
NiCrMo indefinite chilled SG cast iron rolls (Ⅱ) |
SG Ⅴ |
3.00-3.40 |
1.40-1.90 |
0.40-0.80 |
1.10-2.00 |
0.30-1.00 |
0.20-0.60 |
≥0.04 |
Physical Properties
Designation of rolls |
Material code |
Barel hardness (HSD) |
Neck hardness (HSD) |
Tensile strength |
CrMo indefinite chilled SG cast iron rolls |
SG Ⅱ |
50-70 |
35-55 |
>320 |
NiCrMo indefinite chilled SG cast iron rolls (Ⅰ) |
SG Ⅳ |
55-70 |
35-55 |
>320 |
NiCrMo indefinite chilled SG cast iron rolls (Ⅱ) |
SG Ⅴ |
60-70 |
35-55 |
>320 |
Why choose Kingrail Parts
1. The production plant covers an area of more than 100,000 square meters, with 220 workers and 20 technicians
2. Our SG iron rolls meet BS, UIC, DIN, ASTM, AISI, and other international standards.
3. ISO9001-2008 certified
4. Customized according to your specific requirements.
5. Our SG iron roller products are exported to Asia, Europe, America, the United States, Germany, the United Kingdom, France, Thailand, Vietnam and other places.
Get more help
If you have SG iron roller needs, please contact us. We can provide you with the best solution.