海量資源,盡在掌握
 美國低合金高強度型鋼(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化學成分元素化學成分(最大值)/%鋼級:50(345)鋼級:60(415)鋼級:65(450)鋼級:70(485)碳0.120.140.160.16錳1.601.601.601.60磷0.0400.0300.0300.040硫0.0300.0300.0300.030硅0.4 (共 540 字) [閱讀本文] >>