ENAMELING STEEL SHEET HIGHLY EXCELLENT IN UNSUSCEPTIBILITY TO FISHSCALING AND PROCESS FOR PRODUCING THE SAME

WIPO Patent Application WO/2008/038474

A1

A steel sheet for continuous cast enameling which has non-aging properties and is excellent in the unsusceptibility to fishscaling of an enamel coating formed by one enameling operation; and a process for producing the steel sheet. The steel sheet contains, in terms of mass%, 0.003-0.010% C, 0.03-1.30% Mn, 0.001-0.100% Si, 0.0002-0.010% Al, up to 0.0055% N, up to 0.035% P, up to 0.08% S, 0.005-0.085% O, and 0.055-0.250%, excluding 0.055%, Nb, the remainder being iron and incidental impurities. The steel sheet is preferably characterized in that an Fe-Nb-Mn composite oxide is present in the steel sheet, the composite oxide has a niobium mass% concentration distribution therein, and the ratio of the niobium mass% concentration in a high-concentration part (Nb max%) to the niobium mass% concentration in a low-concentration part (Nb min%) satisfies Nb max%/Nb min% ≥ 1.2.

JPS5782428	PRODUCTION OF SPRING STEEL MATERIAL
JP6573459	Ferritic stainless steel plate with excellent hole expansion and its manufacturing method

MURAKAMI HIDEKUNI (JP)
NISHIMURA SATOSHI (JP)

PCT/JP2007/066059

April 03, 2008

August 13, 2007

Click for automatic bibliography generation  

NIPPON STEEL CORP (JP)
MURAKAMI HIDEKUNI (JP)
NISHIMURA SATOSHI (JP)

C22C38/00; B21B1/26; B21B3/00; B22D11/00; B22D11/124; C21D9/46; C21D9/48; C22C38/60

WO2003038140A1

2003-05-08

JPH11100638A	1999-04-13
JPH0116031A
JPS5974255A	1984-04-26
JP2001316760A	2001-11-16
JPS537531A	1978-01-24
JPH0240437A	1990-02-09
JP3435035B2	2003-08-11
JPH0116031A
JP3111834B2	2000-11-27
JP2002249850A	2002-09-06
JP2004084011A	2004-03-18

See also references of EP 2067870A4

AOKI, Atsushi et al. (Toranomon 37 Mori Bldg.5-1, Toranomon 3-chom, Minato-ku Tokyo 23, JP)

View/Download PDF      PDF Help

Previous Patent: DISPLAY APPARATUS AND DISPLAY METHOD

Next Patent: HEAT EXCHANGING ELEMENT