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STEEL FOR SUBMARINE HULLS WITH IMPROVED WELDABILITY
STEEL FOR SUBMARINE HULLS WITH IMPROVED WELDABILITY
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机译：具有改善的可焊性的海底船用钢
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摘要
The invention relates to a steel for the production of submarine hulls having the chemical composition: 0.030%C0.080% 0.040%Si0.48% 0.1%Mn1.4% 2%Ni4% Cr0.3% 0.30%Mo+W/2+3(V+Nb/2+Ta/4)0.89% Mo0.15% V+Nb/2+Ta/40.004% Nb0.004% Cu0.45% Al0.1% Ti0.04% N0.0300% the balance being iron and impurities resulting from the production operation, boron being an impurity whose content is less than 0.0005%, and P+S0.015%, the chemical composition complying with the condition: 410540×C0.25+245[Mo+W/2+3(V+Nb/2+Ta/4)]0.30460.
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机译：本发明涉及一种用于生产海底船体的钢，其化学成分为：0.030％C <0.080％0.040％Si0.48％0.1％Mn1.4％2％Ni4％Cr0.3％0.30％Mo + W / 2 +3（V + Nb / 2 + Ta / 4）0.89％Mo0.15％V + Nb / 2 + Ta / 40.004％Nb0.004％Cu0.45％Al0.1％Ti0.04％N0.0300％the余量为生产过程中产生的铁和杂质，硼为含量小于0.0005％的杂质，P + S0.015％，化学成分符合条件：410540×C0.25 + 245 [Mo + W /2+3(V+Nb/2+Ta/4)]0.30460。
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