海量资源,尽在掌握
 美国低合金高强度型钢(ASTMA913/A913M-04)的材料性能要求如表2-1-15~表2-1-17所示。表2-1-15化学成分元素化学成分(最大值)/%钢级:50(345)钢级:60(415)钢级:65(450)钢级:70(485)碳0.120.140.160.16锰1.601.601.601.60磷0.0400.0300.0300.040硫0.0300.0300.0300.030硅0.4 (共 540 字) [阅读本文] >>