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随着石油工业的发展,耐腐蚀钢需要量逐年增加。特别是制造化肥设备用钢,要求耐碳、氨腐蚀,如采用碳素钢只能使用半年时间,因此,过去都使用奥氏体不锈钢。但这种钢由于我国资源少,生产量很低,满足不了要求,需要从国外进口,从而增加了大量外汇。为解决此问题,我国从1965年开始,研制耐碳、氨腐蚀用钢,到了1970年,先后研制出15MoVA1、15MoVA1TiRe、08SiAl、12SiMoVNbAl等不含镍、铬而含铝的新钢钟。但由
With the development of the oil industry, the demand for corrosion-resistant steel increases year by year. In particular, the manufacture of fertilizer equipment steel, requiring resistance to carbon, ammonia corrosion, such as the use of carbon steel can only be used for six months, therefore, the past are used austenitic stainless steel. However, due to the lack of resources in our country, the production volume is very low, which can not meet the requirements and needs to be imported from abroad, thus increasing the large amount of foreign exchange. To solve this problem, our country from 1965 onwards, the development of carbon, ammonia corrosion of steel, by 1970, has developed 15MoVA1, 15MoVA1TiRe, 08SiAl, 12SiMoVNbAl nickel-free, chromium and aluminum-containing new steel bell. But by