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Invention Grant
US09334552B2 Steel for submarine hulls with improved weldability 有权
具有改善焊接性能的潜艇船体钢

Steel for submarine hulls with improved weldability
Abstract:
The invention relates to a steel for the production of submarine hulls having the chemical composition: 0.030%≦C
Abstract(Chinese):

本发明涉及一种用于生产海底船体的钢，其化学组成为：0.030％＆nlE; C <0.080％0.040％＆nlE; Si＆NlE; 0.48％0.1％＆NlE; Mn＆NlE; 1.4％2％＆NlE; Ni＆NlE; 4％Cr＆ ; 0.3％0.30％＆nlE; Mo + W / 2 + 3（V + Nb / 2 + Ta / 4）＆nlE; 0.89％Mo≥0.15％V + Nb / 2 + Ta / 4＆amp; NlE; 0.004％Nb＆ ; 0.45％Al和nIE; 0.1％Ti＆NlE; 0.04％N＆amp; NlE; 0.0300％余量为铁和由生产操作产生的杂质，硼为含量小于0.0005％的杂质，P + S＆NlE; 0.015％，化学组成 符合条件：410＆nlE; 540×C0.25 + 245 [Mo + W / 2 + 3（V + Nb / 2 + Ta / 4）] 0.30＆nlE; 460。

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