Assembled submarine hull steel components, each steel component having a chemical composition consisting of, in weight percent: 0.030%≰C<0.080% 0.040%≰Si≰0.13% 0.1%≰Mn≰1.4% 2%≰Ni≰4% Cr≰0.3% 0.30%≰Mo+W/2+3(V+Nb/2+Ta/4)≰0.89% 0.15%≰Mo≰0.89% V+Nb/2+Ta/4≰0.004% Nb≰0.004% Cu≰0.45% Al≰0.1% Ti≰0.04% N≰0.0300% impurities resulting from the production operation, said impurities including B≰0.0005%, P+S≰0.015%, the balance being iron, the chemical composition complying with the condition: 410≰540×C0.25+245[Mo+W/2+3(V+Nb/2+Ta/4)]0.30≰460.
Submarine hull steel having enhanced weldability
2016-07-21
Patent
Electronic Resource
English
IPC: | B23K Löten , SOLDERING OR UNSOLDERING / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS / B63G OFFENSIVE OR DEFENSIVE ARRANGEMENTS ON VESSELS , Angriffs- oder Verteidigungsanordnungen auf Schiffen / C21D Veränderung der physikalischen Struktur von Eisenmetallen , MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS / C22C Legierungen , ALLOYS |
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