Global Patent Index - EP 0969113 A1

EP 0969113 A1 2000-01-05 - Stainless austenitic steel with low nickel content

Title (en)

Stainless austenitic steel with low nickel content

Title (de)

Rostfreier austenitischer Stahl mit niedrigem Nickelgehalt

Title (fr)

Acier inoxydable austenitique à basse teneur en nickel

Publication

EP 0969113 A1 (FR)

Application

EP 99401490 A

Priority

FR 9808427 A

Abstract (en)

The steel contains (in wt.%): 0.01-0.08 carbon, 0.1-1 silicon, 5-11 manganese, 15-17.5 chromium, 1-4 nickel, 1-4 copper, 1 x 10<-4>-20 x 10<-4> sulfur, 1 x 10<-4>-50 x 10<-4> calcium, 0-0.003 aluminum, 0.005-0.1 phosphorus, 5 x 10<-4> boron, 0.01 oxygen, and iron and unavoidable impurities the remainder. Preferably, the steel contains (in wt.%): 0.01-0.05 carbon, 0.1-1 silicon, 5-11 manganese, 15-17.5 chromium, 1-2 nickel, 2-4 copper, 1 x 10<-4>-10 x 10<-4> sulfur, 1 x 10<-4>-10 x 10<-4> calcium, 0-0.001 aluminum, 0.005-0.1 phosphorus, less than 0.01 oxygen, and iron and unavoidable impurities the remainder. The steel may also include 0.01-2% Mo.

Abstract (fr)

Acier inoxydable austénitique comportant une basse teneur en nickel et résistant à la corrosionprésentant la composition suivante en pourcentages pondéraux: 0,01% < carbone < 0,08%, 0,1 % < silicium < 1%, 5% < manganèse < 11%, 15% < chrome < 17,5%, 1% < nickel < 4%, 1% < cuivre < 4%, 1.10<-4>% < soufre < 20.10<-4>%, 1.10<-4>% < calcium < 50.10<-4>%, 0% < aluminium < 0,03%, 0,005% < phosphore < 0,1%, bore < 5.10<-4>%, oxygène < 0,01%, le reste étant du fer et des impuretés résultant de l'élaboration.

IPC 1-7 (main, further and additional classification)

C22C 38/58; C22C 38/42

IPC 8 full level (invention and additional information)

C22C 38/00 (2006.01); C22C 38/42 (2006.01); C22C 38/58 (2006.01)

CPC (invention and additional information)

C22C 38/58 (2013.01); C22C 38/42 (2013.01)

Citation (search report)

Designated contracting state (EPC)

AT BE CH DE DK ES FI FR GB GR IE IT LI LU NL PT SE

DOCDB simple family

EP 0969113 A1 20000105; EP 0969113 B1 20021106; AT 227355 T 20021115; AU 3575799 A 20000120; AU 742519 B2 20020103; BR 9902524 A 20000314; CA 2274634 A1 20000102; CN 1091168 C 20020918; CN 1240839 A 20000112; DE 69903769 D1 20021212; FR 2780735 A1 20000107; FR 2780735 B1 20010622; ID 23569 A 20000504; JP 2000034546 A 20000202; KR 20000011411 A 20000225; TW 452600 B 20010901; US 6274084 B1 20010814; ZA 9904321 B 20000110