Non-magnetic low nickel abrasion-resistant and corrosion-resistant high nitrogen stainless steel and processing method thereof

Abstract

The invention discloses a non-magnetic low nickel abrasion-resistant and corrosion-resistant high nitrogen stainless steel. The non-magnetic low nickel abrasion-resistant and corrosion-resistant high nitrogen stainless steel is characterized by including, by mass percentage, 14%-15% of manganese, 14%-15% of chromium nitride, 0.002% of cobalt, 0.002% of niobium, 1% of silicon, 0.003% of phosphorus, 0.001% of sulfur, 0.2%-0.25% of nitrogen, 1.3%-1.5% of nickel, 0.01% of molybdenum, 0.002%-0.003% of vanadium, 0.004% of rich rare earth and the balance iron. The manganese and the nitrogen replace the nickel, direct application of a nitrogen alloy in stainless steel production is achieved, the strength of the stainless steel is improved, and it is guaranteed that no corrosion is generated in the usage period; the production and application cost of the stainless steel is reduced by 30% or above; and there is a very good promoting and leading effect on the stainless steel processing enterprise including transformation and upgrading and product structure adjustment of the screen cloth processing enterprise.

Description

technical field [0001] The invention belongs to the technical field of metal materials, and in particular relates to a non-magnetic, low-nickel, wear-resistant, corrosion-resistant, high-nitrogen stainless steel and a processing method thereof. Background technique [0002] Existing stainless steel materials all need nickel as the main raw material, accounting for more than 50% of the production cost of stainless steel, while nickel is an international resource, and its price is high and unstable. At present, the 304 or 316 stainless steel materials mainly used in China are difficult to meet the needs of users in terms of strength, toughness, non-magnetic, wear-resistant and corrosion-resistant properties. Therefore be badly in need of a kind of corrosion-resistant, wear-resistant, high-strength, non-magnetic, low production cost stainless steel new material. [0003] The new type of stainless steel that was initially researched and developed in China mainly uses methods su...

AI Technical Summary

Problems solved by technology

[0003] The new type of stainless steel that was initially researched and developed in China mainly uses methods such as adding manganese and chromium to reduce the amount of nickel used. The grain refinement cannot meet the requirements, and the probability of material phase change is high, so the magnetization phenomenon is prominent, and the corrosion resistance and wear resistance are poor.