high speed steel rolls manufacturers

The products of LMM Group have been exported to more than 90 countries, countries & areas in America, Europe, Southeast Asia, the Middle East, Africa, Asia, etc, forming 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.

Please provide design data for special processing requirements

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

High speed steel rolls Production equipment

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. 

Our product 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

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