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提高普通炭素钢中某些元素的含量或加入少量其他合金元素,以提高钢的强度,改善钢的某些性能,是节约金属、延长结构寿命的一个重要途径。根据苏联经验,用屈伏强度不小于35kg/mm~2的低合金钢代替目前广泛采用的钢三(沸腾)在建筑结构中可节约金属18-20%。根据我国实际情况,提高炭素钢中某些元素的含量我国是最容易实现的途径。因此,在冶金工业部德国顾问孔歇尔教授的建议下,根据八个部协调方案的指示,从1957年10月15日起,我们开始试制了ST52号钢。
To increase the content of some elements in ordinary carbon steel or to add a small amount of other alloying elements to improve the strength of the steel and improve some properties of the steel is an important way to save the metal and prolong the service life of the structure. According to the experience of the Soviet Union, the use of low-alloy steels with not less than 35 kg / mm 2 of bending strength instead of the currently widely used steels (boiling) can save 18-20% of the metal in building structures. According to China’s actual situation, it is the easiest way to increase the content of certain elements in carbon steel. Therefore, on the advice of German consultant Prof. Koscher, Ministry of Metallurgical Industry, on the instructions of the coordination ministries of the eight ministries, starting from October 15, 1957, we started trial production of ST52 steel.