随着我国国防工业及工农业的发展,对低温材料的需要日益增多。过去,对于工作温度低于—120℃的设备,均选用铝、铜或不锈钢来制造。我国铬、镍资源暂还比较缺少,迅速扭转在低温设备中大量耗用铝、铜、不锈钢,成了当前国民经济发展中急待解决的问题之一。鞍钢工人阶级高举“鞍钢宪法”的光辉旗帜,经过两条路线的激烈斗争,成功地创造出符合我国资源的,无铬,镍的,在热轧状态下使用的20Mn23Al 奥氏体—196℃低温用 With the development of China’s defense industry and industry and agriculture, the need for low-temperature materials is increasing. In the past, the working temperature of less than -120 ℃ equipment, are made of aluminum, copper or stainless steel to manufacture. China’s chromium and nickel resources are temporarily suspended, and rapidly replacing aluminum, copper and stainless steel in low-temperature equipment has become an urgent issue in the current national economic development. Ansteel’s working class, holding the glorious banner of “Ansteel’s Constitution”, has successfully created the 20Mn23Al austenite-196 ℃ low temperature use