Title (en)

STEEL OF HIGH CORROSION RESISTANCE AND STEEL OF HIGH CORROSION RESISTANCE AND WORKABILITY.

Title (de)

STAHL MIT HOHEM KORROSIONSWIDERSTAND UND STAHL MIT HOHEM KORROSIONSWIDERSTAND UND VERARBEITBARKEIT.

Title (fr)

ACIER TRES RESISTANT A LA CORROSION ET ACIER TRES RESISTANT A LA CORROSION ET TRES APTE AU FA ONNAGE.

Publication

EP 0658632 A1 19950621 (EN)

Application

EP 94919855 A 19940706

Priority

• JP 9401096 W 19940706
• JP 16720693 A 19930706
• JP 16720793 A 19930706

Abstract (en)

This invention relates to steel of high corrosion resistance and workability, and more particularly to steel having high corrosion resistance and workability used in an exhaust system of an internal combustion engine for, for example, an automobile or a ship. Steel of a high corrosion resistance and steel of high corrosion resistance and processability in which not less than 0.01 % and less than 1.2% of Si, 0.1-1.5 % of Mn, 2.5-9.9 % of Cr and more than 3.0 % and up to 8.0 % of Al are contained; C, P, S and N are reduced to not more than 0.02%, not more than 0.03 %, not more than 0.01 % and not more than 0.02 % respectively; a total of 0.01-0.5 % of a combination of Nb, V, Ti, Zr, Ta and Hf is contained; a condition expression is satisfied; not less than one kind of element out of Cu, Mo, Sb, Ni, W, rare earth elements and Ca is contained; and the rest consists of Fe and unavoidable impurities.

IPC 1-7

C22C 38/18; C22C 38/50

IPC 8 full level

C22C 38/18 (2006.01)

CPC (source: EP KR)

C22C 38/18 (2013.01 - EP KR); C22C 38/50 (2013.01 - KR)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

WO 9502074 A1 19950119; AU 668315 B2 19960426; AU 7083994 A 19950206; CA 2143434 A1 19950107; EP 0658632 A1 19950621; EP 0658632 A4 19951129; KR 0157727 B1 19981116; KR 950703069 A 19950823

DOCDB simple family (application)

JP 9401096 W 19940706; AU 7083994 A 19940706; CA 2143434 A 19940706; EP 94919855 A 19940706; KR 19950700693 A 19950223