Austenic stainless steel

Abstract

A high manganese nickelous austenic stainless steel consists of carbon is less than or equal to 0.10wt%, silicon is less than or equal to 0.80wt%, manganese 8.5-10.00wt%, chromium 14.00-15.00wt%, nickel is less than or equal to 1.20wt%, phosphorus is less than or equal to 0.050wt%, sulfur is less than or equal to 0.030wt%, nitrogen is less than or equal to 0.20wt%, iron residue. Its advantages include low cost, good mechanics and manufacturing machining performance.

Description

Technical field [0001] The invention relates to an austenitic stainless steel, in particular to a high-manganese low-nickel austenitic stainless steel. Background technique [0002] At present, domestic and foreign stainless steel pipes, kitchen utensils, tableware, etc. are still mostly made of 300 series and 200 series stainless steels, such as stainless steel 304 and stainless steel 201. These grades of stainless steel contain high chromium and nickel. The chromium and nickel contents of 304 stainless steel are 17.54% and 8.86%, respectively; the chromium and nickel contents of 201 stainless steel are 16.91% and 4.7%, respectively. However, because chromium and nickel resources are relatively scarce in my country, the price of the aforementioned stainless steel is high. Therefore, the applicant believes that for austenitic stainless steels, especially for the austenitic stainless steels for the aforementioned purposes, the nickel and chromium components, especially the nickel ...

AI Technical Summary

Problems solved by technology

Not only will the cost increase, but also because Mo and Al are both ferrite forming elements, it will have an adverse effect on obtaining a single austenite structure