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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
Brand name: LMM GROUP
Packing Details : Wooden box with fumigation or Wooden Fram
Delivery Details: 30~60days or Based on the quantity
Shipping: Sea freight、Land freight、Air freight
Customization:
Customized logo(Min. Order 1 piece)
Customized packaging(Min. Order 1 piece)
Graphic customization(Min. Order 1 piece)
Checking report: Material Report、Hardness Report、UT/MT Report、Dimensions checking report、Mechanical Property Test Report
Processing technology: casting, forging
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
Manufacture drawing | √ |
Process schedule with ETD date | √ |
QC checking of each process | √ |
Checking report | √ |
Photos &videos of each process | √ |
ISO 9001 certificate | √ |
Warranty Time | √ |
The third party Checking | √ |
LIAONING MINERAL & METALLURGY GROUP CO., LTD (referred to as LMM GROUP) is a cross-industry, cross-regional, diversified and large-scale multinational corporation with strong international competitiveness centered on the five major sectors of iron and steel, metallurgy, intelligent research and development, food, and aviation. LMM GROUP overseas warehouses and branches have been successively established in the United States, Switzerland, Mexico, Germany, Iran, Turkey and other countries.
The products of LMM Group have been exported to more than 90 countries, countries & areas in America, Europe, Southeast Asia, Middle East, Africa, Asia etc, forms strong and core competitiveness in steelmaking, continuous casting, rolling areas to supply high value added, green, intelligent and one-stop solution and service to global customers in iron, steel, metallurgical industries etc.
Product Parameters
Chemical Analysis
| Designation of rolls | Material code | C | Si | Mn | Ni | Cr | Mo |
| CrMo indefinite chilled cast iron roll | IC | 3.1-3.4 | 0.6-0.9 | 0.5-1.0 | 0.7-1.1 | 0.2-0.6 | |
| NiCrMo indefinite chilled cast iron roll (Ⅰ) | IC Ⅰ | 3.1-3.4 | 0.6-0.9 | 0.5-1.0 | 0.6-0.8 | 0.7-1.1 | 0.2-0.6 |
| NiCrMo indefinite chilled cast iron roll (Ⅱ) | IC Ⅱ | 3.1-3.4 | 0.6-1.0 | 0.5-1.0 | 2.2-2.8 | 0.7-1.1 | 0.2-0.6 |
| NiCrMo indefinite chilled cast iron roll (Ⅲ) | IC Ⅲ | 3.1-3.4 | 0.6-1.0 | 0.5-1.0 | 2.2-2.8 | 0.8-1.3 | 0.2-1.0 |
| NiCrMo indefinite chilled cast iron roll (Ⅳ) | IC Ⅳ | 3.1-3.4 | 0.6-1.0 | 0.5-1.0 | 3.1-4.3 | 1.0-1.3 | 0.2-1.0 |
| NiCrMo indefinite chilled cast iron roll (Ⅴ) | IC Ⅴ | 3.1-3.4 | 0.8-1.2 | 0.5-1.0 | 3.8-4.5 | 1.4-2.0 | 0.2-1.2 |
Physical Properties
| Designation of rolls | Material code | Barrel hardness (HSD) | Neck hardness (HSD) | Tensile strength (Mpa) | |||
| CrMo indefinite chilled cast iron roll | IC | 50-70 | 35-55 | >160 | |||
| NiCrMo indefinite chilled cast iron roll (Ⅰ) | IC Ⅰ | 55-72 | 35-55 | >160 | |||
| NiCrMo indefinite chilled cast iron roll (Ⅱ) | IC Ⅱ | 55-72 | 35-55 | >160 | |||
| NiCrMo indefinite chilled cast iron roll (Ⅲ) | IC Ⅲ | 65-78 | 35-55 | >350 | |||
| NiCrMo indefinite chilled cast iron roll (Ⅳ) | IC Ⅳ | 70-83 | 35-55 | >350 | |||
| NiCrMo indefinite chilled cast iron roll (Ⅴ) | IC Ⅴ | 77-82 | 35-55 | >350 | |||
Microstructure
| Designation of rolls | Material code | Microstructure | ||||||
| CrMo indefinite chilled cast iron roll | IC | Pearlite+cementite+small percentage graphite | ||||||
| NiCrMo indefinite chilled cast iron roll (Ⅰ) | IC Ⅰ | Pearlite+cementite+small percentage graphite | ||||||
| NiCrMo indefinite chilled cast iron roll (Ⅱ) | IC Ⅱ | Fine pearlite+cementite+small percentage graphite | ||||||
| NiCrMo indefinite chilled cast iron roll (Ⅲ) | IC Ⅲ | Sorbite+cementite+small percentage graphite | ||||||
| NiCrMo indefinite chilled cast iron roll (Ⅳ) | IC Ⅳ | Sorbite tempered bainite+carbide+graphite+A small amount of martensite or bainite carbide+graphite | ||||||
| NiCrMo indefinite chilled cast iron roll (Ⅴ) | IC Ⅴ | Sorbite tempered bainite+carbide+graphite+A small amount of martensite or bainite carbide+graphite | ||||||
Application
| Designation of rolls | Material code | Application | ||||||
| CrMo indefinite chilled cast iron roll | IC | Section mill, bar mill, Intermediate and finishing stands of wire-rod mil | ||||||
| NiCrMo indefinite chilled cast iron roll (Ⅰ) | IC Ⅰ | Section mill, bar mill, intermediate and finishing stands of wire-rod mill | ||||||
| NiCrMo indefinite chilled cast iron roll (Ⅱ) | IC Ⅱ | Section mill, bar mill, intermediate and finishing stands of wire-rod mill | ||||||
| NiCrMo indefinite chilled cast iron roll (Ⅲ) | IC Ⅲ | Section mill, bar mill, intermediate and finishing stands of wire-rod mill | ||||||
| NiCrMo indefinite chilled cast iron roll (Ⅳ) | IC Ⅳ | Profile, rod and wire, narrow strip mill finishing stand, Plate, flat rack, strip finishing | ||||||
| NiCrMo indefinite chilled cast iron roll (Ⅴ) | IC Ⅴ | Plate, flat rack, strip finishing | ||||||
Pre-sales:
recommend suitable products according to the actual working conditions and needs of customers.It can also bedeveloped and designed according to needs, and customized services can be provided. During the epidemic, provide remote detection technical support
Strict quality control:
From raw materials, to the production process and befor eleaving the factory, all performance indicators arestrictly tested, and the professional QC team controls according to the process.
After-sales service:
Quality assurance and Resolution of any issues that arise
Product Equipment
Product Certification
LMM Factory
Our production factory have two roll production lines with world leading advantages: One is for cast rolls with the annual capacity of 50,000 tons; the other is for forged rolls with the annual capacity of 5,000 tons. We have advanced production and testing equipment at home and abroad and professional research & development team. At present, the main products are: alloy indefinite chilled cast iron roll, alloy chilled cast iron roll, pearlitic & acicular nodular cast iron roll, high chrome cast iron roll, alloy cast steel roll, semi-steel roll, graphite steel roll, high chrome cast steel roll, high speed steel roll, forged roll and other more than 20 series of rolls, which are mainly used for roughing mill stand, Intermediate mill stand, finishing mill stand of wire, rod, strip, section steel, etc. Since its establishment.
LMM Partners
The products of LMM Group have been exported to more than 90 countries, countries & areas in America, Europe, Southeast Asia, Middle East, Africa, Asia etc, forms strong and core competitiveness in steelmaking, continuous casting, rolling areas to supply high value added, green, intelligent and one-stop solution and service to global customers in iron, steel, metallurgical industries etc.
What do I need for offering a quote ?
Please offer us 2D or 3D drawings (with material, dimension, tolerance, surface treatment and other technical requirement etc.) ,quantity, application or samples. Then we will quote the best price within 24h.
One of the largest enterprises in China specializing in the production of high-performance high-speed steel roll series products
86(411) 84174804
lmme-business@lmmrolls.com
We can provide special services and differentiated products according to the different working conditions of the rolling mill.
Service Include
Classification by roll material：
Cast iron mill rolls
Cast steel mill rolls
Forging mill rolls
Sort by position on the rolling mill：
Work rolls
backup rolls
Intermediate roll
LMM high-speed steel rolls have higher steel passing per groove (times) due to their good wear resistance, which saves roll changing time, improves rolling mill operation rate, reduces roll consumption, and improve the overall efficiency of the factory.
Generally, the amount of steel passing in a single groove (times) is 3 to 5 times that of cast iron rolls.
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.
* Inquiry and consulting support.
* Planning layout and Design requires machinery
* Welcome visit our Factory.
* The production process and before leaving the factory, all performance indicators are strictly tested, and the professional QC team controls according to the process.
* Engineers available to service machinery overseas.
* IN-TIME delivery goods.
* The quality is tracked throughout the process, and the installation and use are guided throughout the process.
* Long-term technical support.
* Stick to the agreement, do not do anything that violates the agreement, stick to the spirit of the contract to the end.
Are You Looking for rolling mill rolls? – contact us to get best plan.