Product Details
Product name: high speed steel rolls
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
LMM GROUP offers a varietyof High-Speed SteelRolls to be used on rolling mills. Such rolls provide higher groove life time compared with cast iron rolls, as well as higher resistance to thermalor mechanical shocks compared with tungsten carbide rings.
| 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 | √ |
The rolls are composed by an outer layermade of high-carbon and alloy high speed-steel and an inner core layer madeof spheroidal graphite cast iron.The rollsare manufactured with the horizontal centrifugal casting technology which grantsan homogeneous and fine microstructure。
The external layer is characterized by thepresence of MC-type primary carbides withhigh hardness and tempered martensile matrix with high temperature resistance.
Main features:
>high and uniform hardness;
>high resistance to wear abrasion;
>high resistance to adhesivenessby surface oxide layer;
>high resistance to heat cracksand thermal stress;
>fine and uniform structure overthe external layer.
>An increase in roll lifetime compared with standard cast iron rolls (3-5 times bigger)thanks to longer groove life time(2-3 times)and reduced redressing thickness (-10 to -50%).
>Reduction of heat cracks and mechanical impact cracks compared with tungsten carbide rings.
> lncreased rolling campaign time.
Better surface finishing.
Chemical Analysis
Designation of rolls | Matenal code | C | Si | Mn | Ni | Cr | Mo | V | W |
HSS | HSS | 1.5-2.20 | 0.30-1.00 | 0.40-1.20 | 0.00-1.50 | 3.00-8.00 | 2.00-8.00 | 2.00-9.00 | 0.00-2.00 |
S-HSS | S-HSS | 0.60-1.20 | 0.80-1.50 | 0.50-1.00 | 0.20-1.20 | 3.00-9.00 | 2.00-5.00 | 0.40-3.00 | 0.00-3.00 |
Certification
The company strictly according to modern enterprise management requirements set up a perfectquality assurance system, and passed the ISO9001:2008 quality management system certification,ISO14001:2004 environmental management system certification, OHSAS18001:1999 occupationalhealth and safety management system certification.
Service Display
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 Brochure Download
As professional one-stop solution provider, LIAONING MINERAL & METALLURGY GROUP CO., LTD(LMM GROUP) Established in 2007, and focus on engineering research & design, production & delivery, technology transfer, installation & commissioning, construction & building, operation & management for iron, steel & metallurgical industries globally.
PRODUCT CATALOG
CONTACT US
