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:
Jun. 01, 2021
Filed:
Jul. 12, 2017
Vallourec Deutschland Gmbh, Dusseldorf, DE;
Bernhard Koschlig, Dusseldorf, DE;
Stephan Scherf, Dusseldorf, DE;
Ralf Hojda, Altena, DE;
Rodolfo Nirello, Hautmont, FR;
VALLOUREC DEUTSCHLAND GmbH, Dusseldorf, DE;
Abstract
The invention deals with Steel for seamless pipes comprising the following chemical composition elements in weight percent: 0.04≤C≤ to 0.18, 0.10≤Si≤0.60, 0.80≤Mn≤1.90, P≤0.020, S≤0.01, 0.01≤Al≤0.06, 0.50≤Cu≤1.20, 0.10≤Cr≤0.60, 0.60≤Ni≤1.20, 0.25≤Mo≤0.60, B≤0.005, V≤0.060, Ti≤0.050, 0.010≤Nb≤0.050, 0.10≤W≤0.50, N≤0.012, where the balance is Fe and inevitable impurities. The steel of the invention can be used in offshore applications, line process pipes, structural and mechanical applications, especially where harsh environmental conditions and service temperatures down to −80° C. occur.