STAINLESS STEEL PRODUCT CONTAINING B AND METHOD FOR PRODUCTION THEREOF

Title:

STAINLESS STEEL PRODUCT CONTAINING B AND METHOD FOR PRODUCTION THEREOF

Document Type and Number:

WIPO Patent Application WO/2004/024969

Kind Code:

A1

Abstract:

A B-containing stainless steel bloom which comprises a stainless steel bloom containing 0.3 to 2.5 % of B and a protecting material being joined by the use of a weld metal having a chemical components satisfying the following formulae (1) to (4): 15 ≤ Cr eq ≤ 30 --- (1), 4 ≤ Cr eq - Ni eq ≤ 17 --- (2), Cr eq = Cr + 1.5Si + Mo - 5B --- (3), and Ni eq = Ni + 30(C + N) + 0.5Mn --- (4), wherein a symbol of an element represents the content of the element (mass %) in the steel, so as to be integrated with the bloom; the B-containing stainless steel bloom preferably further comprising an inserted material being provided between the bloom and the protecting material in the joining; and a method for producing a steel product comprising rolling the B-containing stainless steel bloom. The B-containing stainless steel bloom can be hot rolled without the occurrence of an edge crack and be used for a neutron shielding material and a separator of a fuel cell.

More Like This:

JPH082450	[Title of the Invention] A method for manufacturing an austenitic stainless steel sheet.
JP2004197126	GRAIN ORIENTED SILICON STEEL SHEET HAVING HIGH MAGNETIC PERMEABILITY, AND METHOD FOR INCREASING MAGNETIC PERMEABILITY OF GRAIN ORIENTED SILICON STEEL SHEET
JPH06238305	METHOD FOR RESTRAINING SURFACE FLAW OF HOT ROLLED STEEL STRIP

Inventors:

ISHIDA KAZUHIKO (JP)
OGAWA KAZUHIRO (JP)
YAZAWA TAKEO (JP)
YAMAMOTO HIDEAKI (JP)
MORISAKI HIDEO (JP)

Application Number:

PCT/JP2003/011276

Publication Date:

March 25, 2004

Filing Date:

September 03, 2003

Export Citation:

Click for automatic bibliography generation Help

Assignee:

SUMITOMO METAL IND (JP)
ISHIDA KAZUHIKO (JP)
OGAWA KAZUHIRO (JP)
YAZAWA TAKEO (JP)
YAMAMOTO HIDEAKI (JP)
MORISAKI HIDEO (JP)

International Classes:

B21B3/02; B23K35/30; B23K15/00; C22C38/00; C22C38/04; C22C38/44; C22C38/54; H01M8/02; B21B1/02; B23K103/04; (IPC1-7): C22C38/00; B21B3/02; B23K9/04; C22C38/32

Foreign References:

JPH04253506A	1992-09-09
JPS6376703A	1988-04-07
JPS61117257A	1986-06-04
JPS6313664A	1988-01-20
EP1046723A1	2000-10-25
JP2001239364A	2001-09-04
JPH09269398A	1997-10-14
JPS6376703A	1988-04-07

Other References: