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:
Jul. 29, 1980
Filed:
Nov. 02, 1977
Jury F Balandin, Leningrad, SU;
Vladimir I Badanin, Gatchina Leningradskoi oblasti, SU;
Igor V Gorynin, Leningrad, SU;
Lev Y Gluskin, Leningrad, SU;
Jury I Zvezdin, Leningrad, SU;
Vladimir A Nikolaev, Gatchina Leningradskoi oblasti, SU;
Anatoly M Parshin, Leningrad, SU;
Nikolai N Zorev, Moscow, SU;
Anatoly A Astafiev, Moscow, SU;
Vladimir S Dub, Moscow, SU;
Oleg M Vishkarev, Moscow, SU;
Sergei I Markov, Moscow, SU;
Jury V Sobolev, Kolpino Leningradskoi oblasti, SU;
Valentin I Kozlov, Kolpino Leningradskoi oblasti, SU;
Other;
Abstract
The steel according to the invention consists of 0.12-0.20% by weight of carbon, 0.15-0.37% by weight of silicon, 0.3-0.8% by weight of manganese, 1.6-2.7% by weight of chromium, 0.8-2.0% by weight of nickel, 0.5-1.0% by weight of molybdenum, 0.05-0.15% by weight of vanadium, 0.002-0.08% by weight of cerium, 0.01-0.10% by weight of copper, 0.0005-0.009% by weight of antimony, 0.0005-0.009% by weight of tin, 0.001-0.02% by weight of sulphur, 0.002-0.02% by weight of phosphorus, 96.246-92.862% by weight of iron. The steel exhibits improved resistance against neutron radiation. At 300.degree. C. and neutron fluence of 1.10.sup.20 neutr./cm.sup.2, the transition embrittlement temperature increases by no more than 50.degree. C. The steel is designed for application in structural members having a wall thickness of up to 650 mm and has ultimate strength .sigma..sub.B at 350.degree. C. of at least 55 kgf/mm.sup.2. The steel does not require immediate temper after welding.