EP 2108710 A1 20091014 - AUSTENITE BASED STAINLESS STEEL AND METHOD OF DEHYDROGENATING THE SAME
Title (en)
AUSTENITE BASED STAINLESS STEEL AND METHOD OF DEHYDROGENATING THE SAME
Title (de)
EDELSTAHL AUF AUSTENITBASIS UND VERFAHREN ZU SEINER DEHYDROGENIERUNG
Title (fr)
ACIER INOXYDABLE AUSTÉNITIQUE ET SON PROCÉDÉ DE DÉSHYDROGÉNATION
Publication
Application
Priority
- JP 2007069589 W 20071005
- JP 2007022467 A 20070131
Abstract (en)
By focusing on the non-diffusible hydrogen that causes hydrogen embrittlement of austenitic stainless steel, the present invention provides an austenitic stainless steel in which the non-diffusible hydrogen is removed by maintaining the austenitic stainless steel in a vacuum of 0.2 Pa or less and heating at a heating temperature of 200°C to 500°C for 460 hours or less to remove the hydrogen (H) contained therein to a level of 0.00007 mass% (0.7 mass ppm) or less.
IPC 8 full level
C22C 38/00 (2006.01); C21D 3/06 (2006.01); C21D 6/00 (2006.01); C22C 38/58 (2006.01)
CPC (source: EP KR US)
C21D 3/06 (2013.01 - EP KR US); C21D 6/004 (2013.01 - EP KR US); C22C 38/44 (2013.01 - EP KR US); C21D 2211/001 (2013.01 - EP KR US); C21D 2211/008 (2013.01 - EP KR US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 2108710 A1 20091014; EP 2108710 A4 20100714; CA 2649355 A1 20080807; CN 101443469 A 20090527; CN 101443469 B 20121024; JP 2008208451 A 20080911; KR 20090109466 A 20091020; US 2009263269 A1 20091022; US 2010154939 A1 20100624; WO 2008093453 A1 20080807
DOCDB simple family (application)
EP 07829327 A 20071005; CA 2649355 A 20071005; CN 200780017282 A 20071005; JP 2007069589 W 20071005; JP 2007262057 A 20071005; KR 20087025288 A 20071005; US 30170707 A 20071005; US 68833510 A 20100115