Global Patent Index - EP 0378998 B1

EP 0378998 B1 19930623 - STAINLESS WROUGHT AND CAST ALLOYS, AND WELDING ADDITIVES FOR PARTS CONTACTED BY CONCENTRATED HOT SULFURIC ACID

Title (en)

STAINLESS WROUGHT AND CAST ALLOYS, AND WELDING ADDITIVES FOR PARTS CONTACTED BY CONCENTRATED HOT SULFURIC ACID

Publication

EP 0378998 B1 19930623 (DE)

Application

EP 90100125 A 19900104

Priority

DE 3901028 A 19890114

Abstract (en)

[origin: EP0378998A1] Iron-chromium-nickel-silicon alloys containing 13-32% by weight of Cr, 5-25% by weight of Ni and 4-9% by weight of Si and having a microstructure which contains more than 10% of delta-ferrite are highly resistant to hot concentrated sulphuric acid and can be used for structural components in contact therewith.

IPC 1-7

C22C 38/40

IPC 8 full level

C22C 38/00 (2006.01); C22C 38/40 (2006.01)

CPC (source: EP KR US)

C22C 38/00 (2013.01 - KR); C22C 38/34 (2013.01 - KR); C22C 38/40 (2013.01 - EP KR US)

Citation (examination)

  • Peckner/Bernstein, HANDBOOK OF STAINLESS STEEL, McGraw Hill, 1977; Seiten 14.4-14.7#
  • HANDBUCH SCHWEISSZUSATZWERKSTOFFE, 1981/82, Messer Griesheim; Seite 176#
  • CHEMIE ING. TECHN., Heft 18, 1969; Seiten 991-999#

Designated contracting state (EPC)

DE FR GB IT LU NL

DOCDB simple family (publication)

EP 0378998 A1 19900725; EP 0378998 B1 19930623; DE 3901028 A1 19900719; DE 59001815 D1 19930729; JP H02290949 A 19901130; KR 0166357 B1 19990115; KR 900011909 A 19900802; US 5051233 A 19910924; US 5120496 A 19920609

DOCDB simple family (application)

EP 90100125 A 19900104; DE 3901028 A 19890114; DE 59001815 T 19900104; JP 368990 A 19900112; KR 900000320 A 19900112; US 46368990 A 19900111; US 58271790 A 19900914