Huzhou Zhonghang Roll Co.,Ltd. have manufacturing Metallurgical Rolls since 1992.
The products cover HSS Rollers, Ductile Iron Rolls, SGP Rollers, SGA Rollers, IC Rollers, CC Rollers, HCr Rollers, AD Rolls, AS Rolls and GS Rolls and other 20 different Rollers and Rings.
Products application: below Steel Mill Rolling production lines of Rough Rolling, Intermediate Rolling, Finishing Rolling
1. High-Speed Wire & Rod Mill,
2. Rod & Wire Mill,
3. Narrow Strip Mill,
4. Medium Strip Mill,
5. Section Mill,
6. Other Rolling Mills
Product Highlight:
Introducing the Zhonghang Roll SGV Alloy Ductile Iron Roll.
Engineered with exceptional strength and precision, this high-strength SGV alloy iron mill roll promises unmatched durability and performance, making it an essential asset in any high-demand rolling mill operation.
Our Alloy Ductile Iron Rollers are meticulously designed with a cold hard working layer imbued with a modest amount of globular graphite. This unique composition provides an ideal balance of hardness, ensuring superior roller strength. These rollers are engineered to withstand high temperatures and resist accidents, making them an indispensable asset in any high-demand environment.
1. Product Name: Alloy Ductile Iron Roll
2. Product Material: Premium SGV
3.Chemical Composition
National Standards |
C |
Si |
Mn |
P |
S |
Cr |
Ni |
Mo |
Mg |
Code No. |
SGII |
2.9-3.6 |
0.8-2.5 |
0.4-1.2 |
≤0.25 |
≤0.03 |
0.2-1.6 |
- |
0.2-0.6 |
≥0.04 |
SGIV |
2.9-3.6 |
0.8-2.5 |
0.4-1.2 |
≤0.25 |
≤0.03 |
0.2-1.6 |
0.5-1.0 |
0.2-0.8 |
≥0.04 |
SGV |
2.9-3.6 |
0.8-2.5 |
0.4-1.2 |
≤0.2 |
≤0.03 |
0.3-1.2 |
1.01-2.0 |
0.2-0.8 |
≥0.04 |
4.Physical Property
Physical Property |
Application |
Code No. |
Roll Barrel Hardness(HSD) |
Roll Neck Tensile Strength(N/mm2) |
SGII |
50-70 |
≥320 |
Rod and Wire, Section Steel Mill Roughing mill stand, medium mill stand |
SGIV |
55-70 |
≥320 |
Rod and Wire, Section Steel Mill Roughing mill stand, medium mill stand |
SGV |
60-70 |
≥320 |
section steel, rod and wire medium mill. |


5.Application:
Perfectly engineered for use in Rod and Wire mills,
Essential for Section Steel Mill Roughing mill stands,
Indispensable for Section Steel Mill Roughing mill stands and medium mill stands,



Why Choose Us:
- Standard management makes us the rolls records are documented and so the roll quality can be traced at any time.
- 30+ years manufacturing experience make us research and development on rolls more and deeper in this field.
- Different roller customization is charged by technology team.
- From raw material to final finished roll, we produce rolls by ourselves.
- We have own steel factory to test new products, if test ok, we will put into mass production.
Q: What is your response time for inquiries?
A: We will respond to your inquiry within 1 hour.
Q: Are you a manufacturer?
A: Yes, we have been a direct manufacturer of Cast Rollers for over 30 years.
Q: What kinds of rollers do you manufacture?
A: We specialize in producing HSS rollers, Ductile Iron Rolls, SGP rollers, SGA rollers, IC rollers, CC rollers, HCr rollers, AD rolls, AS rolls, GS rolls, and over 20 other types of Rollers and Rings.
Q: In which applications are Cast Rolls used?
A: Cast Rolls are primarily used in High-Speed Wire & Rod, Rod, Narrow Strip Steel, Medium Strip Steel, Section Steel, and various Rolling Mills for Rough Rolling, Intermediate Rolling, and Finishing Rolling Steel production lines.
Q: Do you offer custom rollers and rings?
A: Yes, we can customize rolls based on your drawings and specific requirements.
Q: Can you recommend suitable rolls based on specific needs?
A: Absolutely, we are pleased to recommend the most suitable rolls for your requirements.
Q: Is it possible to place a trial order to start the business?
A: Yes, we accommodate trial orders without any problem.
Q: How do you ensure the quality of the rolls?
A: We conduct multiple inspections to guarantee the quality of our products.
- Raw material inspection
- Inspection at each stage of production
- 100% finished product inspection
Q: How are the rolls packaged?
A: Rolls are packed using three layers of plastic wrapping and then secured on an iron frame.
Q: How are the rolls shipped?
A: Typically, rolls are shipped by sea from the ports of Shanghai or Ningbo.
Q: Which countries do Zhonghang Rolls export to?
A: Our products are primarily exported to the United States, Russia, Japan, Spain, Malaysia, Turkey, South Korea, and over 10 other countries worldwide.