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:
Apr. 15, 2014
Filed:
Nov. 24, 2010
Hiroyuki Semba, Sanda, JP;
Masaaki Igarashi, Sanda, JP;
Tomohiko Omura, Kishiwada, JP;
Mitsuo Miyahara, Kobe, JP;
Kazuhiko Ogawa, Nishinomiya, JP;
Hiroyuki Semba, Sanda, JP;
Masaaki Igarashi, Sanda, JP;
Tomohiko Omura, Kishiwada, JP;
Mitsuo Miyahara, Kobe, JP;
Kazuhiko Ogawa, Nishinomiya, JP;
Nippon Steel & Sumitomo Metal Corporation, Tokyo, JP;
Abstract
An austenitic stainless steel for use in a hydrogen gas atmosphere comprises, in mass %, C: 0.10% or less, Si: 1.0% or less, Mn: 0.01 to 30%, P: 0.040% or less, S: 0.01% or less, Cr: 15 to 30%, Ni: 5.0 to 30%, Al: 0.10% or less, N: 0.001 to 0.30% with the balance Fe and inevitable impurities. An X-ray (111) integration intensity of a cross section along the direction rectangular to the working direction is five times that in a random direction or less, and the X-ray integration intensity ratio of a cross section along the working direction satisfies I(220)/I(111)≦10. The high strength steel can also contain one or more of the groups of Mo and W; V, Nb, Ta, Ti, Zr and Hf; B; Cu and Co; Mg, Ca, La, Ce, Y, Sm, Pr and Nd.