High-speed steel for roller

Abstract

The invention discloses a high-speed steel for a roller. The chemical composition of the high-speed steel comprises the following components by weight percent: 3.2-3.6% of C, 1.2-1.6% of W, 5.0-7.0 of Mo, 2.0-3.0% of V, 8.0-10.0% of Cr, 0.1-0.4% of Al, 2.2-2.6% of Ni, 6.5-7.5% of Co, 0.2-0.4% of Nb, 0.2-0.4% of Ti, 0.4-0.6% of Ce, 0.05-0.20% of Zr, less than 0.8% of Si, less than 1.5 % of Mn, less than 0.03% of S, less than 0.04% of P, and the balance of Fe.

Description

technical field [0001] The invention relates to the field of iron and steel metallurgy, in particular to a high-speed steel. Background technique [0002] Rolls are one of the main spare parts consumed in steel rolling production, and the consumption of rolls is about 5% to 15% of the production cost of steel rolling. If factors such as production downtime, reduced production and increased equipment maintenance due to roll consumption are considered, the proportion of production costs will be even higher. The quality of the roll is not only related to the cost of rolling steel production and the production rate of the rolling mill, but also affects the quality of the rolled material to a large extent. With the development of steel rolling technology, the speed and automation of rolling mills have been continuously improved, and higher requirements have been put forward for the quality of rolls, especially the wear resistance, strength and toughness of rolls. In recent year...

AI Technical Summary

Problems solved by technology

This method has the disadvantages of complicated process, high energy consumption and low efficiency.