Title:
HIGH-STRENGTH ISOTROPIC STEEL, METHOD FOR MAKING STEEL PLATES AND RESULTING PLATES
Document Type and Number:
WIPO Patent Application WO2002059384
Kind Code:
A3
Abstract:
The invention concerns a steel whereof the composition, expressed in wt. %, comprises: 0.03 = C = 0.06; 0.50 = Mn = 1.10; 0.08 = Si = 0.20; 0.015 = Al = 0.070; N = 0.007; Ni = 0.040; Cu = 0.040; P = 0.035; S = 0.015; Mo = 0.008; Ti = 0.005; providing that it also comprises boron in an amount such that: 0.65 = B/N = 1.60, the rest of the composition consisting of iron and impurities resulting from preparation. The invention also concerns a method for making steel plates having said composition and the resulting plates.
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Inventors:
MARSAL JOEL (FR)
MESCOLINI DOMINIQUE (FR)
MESCOLINI DOMINIQUE (FR)
Application Number:
PCT/FR2002/000225
Publication Date:
September 19, 2002
Filing Date:
January 21, 2002
Export Citation:
Assignee:
USINOR (FR)
MARSAL JOEL (FR)
MESCOLINI DOMINIQUE (FR)
MARSAL JOEL (FR)
MESCOLINI DOMINIQUE (FR)
International Classes:
C21D9/46; B32B15/01; C21D8/02; C21D8/04; C22C38/00; C22C38/04; C22C38/06; C22C38/16; (IPC1-7): C21D8/04; C22C38/04; C22C38/06
Foreign References:
EP0870848A1 | 1998-10-14 | |||
DE19701443A1 | 1998-07-23 | |||
US6162308A | 2000-12-19 | |||
EP0475096A1 | 1992-03-18 | |||
EP0905267A1 | 1999-03-31 | |||
EP0510718A2 | 1992-10-28 |
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