The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 10, 2016
Filed:
May. 19, 2006
Jean Beguinot, Le Creusot, FR;
Cédric Chauvy, Saint Firmin, FR;
Jean Beguinot, Le Creusot, FR;
Cédric Chauvy, Saint Firmin, FR;
INDUSTEEL FRANCE, Puteaux, FR;
Abstract
The invention relates to a steel for the production of submarine hulls having the chemical composition:0.030%≦C<0.080%0.040%≦Si≦0.48%0.1%≦Mn≦1.4%2%≦Ni≦4%Cr≦0.3%0.30%≦Mo+W/2+3(V+Nb/2+Ta/4)≦0.89%Mo≧0.15%V+Nb/2+Ta/4≦0.004%Nb≦0.004%Cu≦0.45%Al≦0.1%Ti≦0.04%N≦0.0300%the balance being iron and impurities resulting from the production operation, boron being an impurity whose content is less than 0.0005%, and P+S≦0.015%, the chemical composition complying with the condition:410≦540×C+245[Mo+W/2+3(V+Nb/2+Ta/4)]≦460.