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  On March 2, the Ministry of industry and information technology approved the formulation and revision plan of the first batch of industry standards in 2021. Among them, Qingtuo Group Co., Ltd. has led or participated in three industry standards, including 2021-0121t-yb cold rolled stainless steel plate and strip for decoration, 2021-0355t-yb Hot Rolled Austenitic stainless steel plate and strip for chromium manganese nickel nitrogen system and 2021-0356t-yb Cold Rolled Austenitic stainless steel plate and strip for chromium manganese nickel nitrogen system.

  Adhering to the pioneering spirit of Qingshan industry, Qingtuo group launched high corrosion resistance and high strength nitrogen-containing qn1803 stainless steel in 2018. After more than two years of development and promotion, it has formed five QN series products, including qn1701 (12cr17mn7ni2cu2n), qn1803 (08cr19mn6ni3cu2n), qn1804 (05cr19mn6ni4cu2n), qn1906 (05cr19ni6mn4mocu2n) and qn2109 (05cr21ni10mn3mo2) The corrosion resistance of qn1906 and qn2109 is even more than 316L. On September 28, 2020, QN's five major products were all shortlisted in the two group standards of "Cr Mn Ni n austenitic stainless steel hot rolled plate and strip" issued by China Steel Association, greatly improving the corrosion resistance level of Cr Ni Mn n austenitic stainless steel in China.

  QN series products have been successfully applied in many fields, such as architecture, decoration, animal husbandry, hardware, household appliances, kitchen and bathroom, marine industry, machinery, fasteners, refrigerators, products and so on. With excellent corrosion resistance, high strength and high cost performance, QN series products have won the high recognition and wide praise of users. At present, the usage has reached more than 200000 tons.

  QN stainless steel is included in the industry standard plan of MIIT, which not only provides a standard basis for users to use, design and purchase, but also provides a strong boost for the high-quality development of China's stainless steel industry.

• [Editor:Catherine Ren]