◆ Unique advantages of the product

1, high speed steel roll material contains high vanadium, tungsten, chromium, molybdenum, niobium and other alloy elements, the type of carbide in the roll structure is mainly MC type and M2C type, high hardness of carbide, good wear resistance, compared with the traditional ductile iron roll and high nickel chromium roll, single groove (times) high steel amount, saving roll change time, improve the mill operation rate, reduce roll consumption. The production cost is reduced and the comprehensive benefit of the factory is improved.

2, high speed steel roll has good thermal stability, at rolling temperature, roll surface has high hardness and good wear resistance.

3, the high speed steel roll has good hardenability, from the surface of the roll body to the internal hardness of the working layer is almost not reduced, from the roll from outside to inside has the same good wear resistance.

4, high speed steel roll in the use of the process, under good cooling conditions, the surface of the roll body to form a thin and dense oxide film, this uniform, thin and dense oxide film can exist for a long time without falling off, making the high speed steel roll wear resistance is improved.

5, high speed steel roll material expansion coefficient is large, good thermal conductivity, roll in the rolling process with the groove trace wear at the same time, due to the expansion of the high speed steel material itself makes the pass constantly smaller, therefore, the high speed steel roll in the rolling process of the groove changes little, the consistency of the pass size to maintain a long time, Especially when rolling bar or rebar, it is more beneficial to control the negative tolerance of rolled bar.

6, because the centrifugal casting high-speed steel roll core is made of alloy ductile iron material, so the roller neck strength is high.

◆ Product application range

Our high speed steel rolls are widely used in:

The finished frame of the bar mill (HSS roll), the finished front frame (HSS roll), the cutting frame (HSS roll), the pre-cutting frame (HSS roll).

High speed wire mill pre-finishing mill group. Finishing group of hot strip mill.

Spring flat steel mill finishing mill stand and Angle steel, channel steel and other small shape steel mill.

◆ Main chemical composition