Ferrite stainless steel with good polishing performance and manufacturing method thereof

Abstract

The invention relates to ferrite stainless steel with good polishing performance and a manufacturing method thereof. The ferrite stainless steel comprises the following components in percentage by weight: not more than 0.015% of C, not more than 0.020% of N, not more than 0.5% of Si, not more than 0.5% of Mn, not more than 0.030% of P, not more than 0.010% of S, 18-22% of Cr, 0.30-0.50% of Cu, not more than 0.30% of Ni, 0.3-0.5% of Nb, not more than 0.002% of Al, not more than 0.005% of O and the balance of Fe and inevitable impurities. According to the manufacturing method provided by the invention, by using Nb for stabilization and controlling the oxygen content and the type of inclusions in the steel, the precipitation of a micro-sized second phase and the generation of brittle inclusions can be avoided, so that the polishing performance of the ferrite stainless steel can be ensured.

Description

technical field [0001] The invention relates to a ferritic stainless steel, in particular to a ferritic stainless steel with good polishing performance and a manufacturing method thereof. Background technique [0002] Ferritic stainless steel, especially ferritic stainless steel containing carbon and very low nitrogen, has excellent corrosion resistance, formability and weldability, and has high product cost performance. It is the world's key resource for developing and replacing austenitic stainless steel Energy-saving products can be widely used in construction, home appliances, kitchen utensils, products and other fields. However, for applications that require surface decoration such as BA and high-grade mirror abrasives, the existing Ti, Nb double-stabilized or Ti single-stabilized ferritic stainless steel is not suitable. [0003] Much research has been done on improving the formability of ferritic stainless steels, but little research has been done on the polishing pr...

AI Technical Summary

Problems solved by technology

However, for applications that require surface decoration such as BA and high-grade mirror abrasives, the existing Ti, Nb double-stabilized or Ti single-stabilized ferritic stainless steel

Images