我国1952年开始生产研究不锈钢和合金以来，已有仅四十年的历史，从开始仿制苏联钢号到自行研究制造到创立新型的钢种、钢号，到纳入国标，已逐步形成了完整体系。同时，我国特殊钢工业也取得了很大发展。到目前为止，据不完全统计，我国新型不锈钢已有40多个牌号而合金类中就? Since our country began to produce stainless steel and alloy in 1952, it has existed for only 40 years. From the time of imitating the Soviet Union’s steel numbers to researching and manufacturing new types of steel and steel to incorporate the national standard, China has gradually formed a complete system . At the same time, China’s special steel industry has also made great progress. So far, according to incomplete statistics, China’s new stainless steel has more than 40 brands and alloys in the class?