High-strength alloy steel

Abstract

The invention discloses high-strength alloy steel. The alloy steel comprises 1-4 parts of silicon, 6-13 parts of manganese, 25-38 parts of carbon, 1.5-3 parts of phosphorus, 1.5-5 parts of sulfur, 55-85 parts of chromium, 25-50 parts of molybdenum, 10-20 parts of tungsten, 5-20 parts of aluminum, 60-80 parts of vanadium, 10-20 parts of titanium, 5-15 parts of copper, 0.1-10 parts of nitrogen and 780-900 parts of iron. By controlling the contents of the metals, various indexes of the alloy steel are effectively improved, so that the alloy steel has good hardness, toughness, distortion resistance, impact resistance and wear resistance, and is wide in application range.

Description

technical field [0001] The invention relates to a metal material, in particular to a high-strength alloy steel. Background technique [0002] In the prior art, the wear materials widely used in metallurgy, iron and steel industry, mining, cement industry, pulverizer and other mechanical parts are mostly ordinary chrome-aluminum steel, vanadium steel or high-chromium cast iron, such as rolls in metallurgy and iron and steel industries , The blow bar in the mine and cement industry, the hammer body on the pulverizer and other main parts of the machine are the same. However, ordinary chrome-aluminum steel has limited wear resistance and short service life, resulting in increased production costs. High chromium cast iron has good wear resistance, but high cost and poor toughness. Contents of the invention [0003] The purpose of the present invention is to provide a high-strength alloy steel to solve the problems raised in the above-mentioned background technology. [0004]...

AI Technical Summary

Problems solved by technology

Ordinary chromium-aluminum steel has limited wear resistance and short service life, resulting in increased production costs

High chromium cast iron has good wear resistance, but high cost and poor toughness