The world No. 1 in crude steel production steel plant, over 70% of the HSS for bar and wire are from us.

Alloy SG rolls

Previous slide
Next slide

LMM GROUP, as an expert in roll production, is committed to providing high-quality, high-performance roll products to the global steel industry. We have rich experience and advanced technology to meet the needs of various steel rolling processes. Our rolls have the characteristics of high precision, high wear resistance and high fatigue resistance, which can significantly improve the output and product quality of steel rolling mills. Cooperation with us will provide you with stable, reliable and efficient roll solutions to help you achieve your business goals. We sincerely welcome you to contact us to learn more about our products and services.

Chemical Analysis

Designation of rollsMaterial code    CSiMnNi        CrMoMg
CrMo indefinite chilled SG cast iron rollsSG Ⅱ3.00-3.401.40-1.900.20-0.80 0.20-0.600.20-0.60≥0.04
NiCrMo indefinite chilled SG cast  iron rolls (Ⅰ)SG Ⅳ3.00-3.401.40-1.900.40-0.800.50-1.000.20-0.600.20-0.60≥0.04
NiCrMo indefinite chilled SG cast  iron rolls (Ⅱ)SG Ⅴ3.00-3.401.40-1.900.40-0.801.10-2.000.30-1.000.20-0.60≥0.04

Centritugal ocasting ( φ200-φ600) × 1050×3000: (φ500-φ1350)×1400~5300×11000
The monobloc casting is applied to all dimensions or roils. the maximum weight of rollisup to 80T.

Physical Properties

Designation of rollsMaterial codeBarel hardness (HSD)Neck hardness  (HSD)Tensile strength
CrMo indefinite chilled SG cast iron rollsSG Ⅱ50-7035-55>320
NiCrMo indefinite chilled SG cast iron rolls (Ⅰ)SG Ⅳ55-7035-55>320
NiCrMo indefinite chilled SG cast iron rolls (Ⅱ)SG Ⅴ60-7035-55>320

Request For Quotation

Please provide design data for special processing requirements

How to find a trustworthy Adamite rolls manufacturer

If you want to find a trustworthy adamite rolls supplier with long-term cooperation, maybe you need to concern about as the following

1.Mill rolls equipment

The equipment plays an important role in the high-quality mill rolls. Types of equipment matters from the beginning to the finished products. Compared with alloy cast steel roll, adamite roll has a good abrasion resistance through a special heat treatment process, so for the products, the equipment ever much more important.

2.Quality Control

Different stages of production have to follow controlling parameters to ensure that the production department is working with the required efficiency. To get the quality mill roll, quality is absolutely necessary

3. Technological Advancement of the manufacturer

A reliable manufacturer will focus on technological advancement for its long-lasting development. The advanced technology can guarantee the improvement of products. The best supplier not only can provide high-standard products but also is the steel solution provider. Before choosing the company you should ensure the manufacture has a professional team for advanced technology.

4. Delivery time and price of the companyDelivery time often is the main factor to choose the supplier. Delivery on-time is also the basis of next time cooperation. Checking out the place of the company and the delivery term is essential. Price is also an important element for a best-value mill roll manufacturer.


Founded in 2007, LMM GROUP mainly produces all kinds of metallurgical rolls for various types of steel, bar, high-speed wire and strip hot and cold plate and strip rolling mills.

The company covers an area of 100,000 square meters, including two complete production lines for cast rolls and forged steel rolls, processing workshops, product research and development centers, testing centers, training centers and office buildings and other supporting facilities. The factory environment is very beautiful.

LMM have been supplied to world’s top steel manufacturer Arcelormittal, TATA Steel, EZZ steel etc. We do OEM for Concast and Danieli for a long time

Play Video about Steel mill roll life

Contact US Now !

We would be happy to help and advise if you have any questions or inquiries.