Published March 31, 1977 | Version v1
Patent Open

Tough and corrosion resistant austenitic alloy

Creators

Description

The invention concerns austenitic alloys of high corrosion resistance, which can be deformed hot and tempered, so that they can be forged, rolled, and drawn into tubes and other shapes. The alloys have a basis of nickel, chromium and iron. The silicon content is between 2 and 4% by weight, and the molybdenum content is between 0 and 2% by weight. The alloys can be hardened by ageing and contain up to 0.1% by weight of boron. The other alloying materials are 1 to 3.5% by weight of manganese, 4 to 7.5% by weight of cobalt, 2.5 to 8% by weight of copper and 0.05 to 0.25% by weight of carbon. (IHOE)

Availability note (English)

MF available from INIS under the Report Number; Also available from Dt. Patentamt, Muenchen (FRG).

Abstract (German)

Die Erfindung betrifft austenitische Legierungen hoher Korrosionsresistenz, die warmformbar und temperfaehig sind, so dass sie geschmiedet, gewalzt und zu Roehren und anderen Strukturen gezogen werden koennen. Die Legierungen weisen eine Nickel-, Chrom- und Eisenbasis auf. Der Siliziumgehalt betraegt zwischen 2 und 4 Gew.%, der Molybdaengehalt zwischen 0 und 2 Gew.%. Die Legierungen sind alterungshartbar und enthalten bis zu etwa 0,1 Gew.% Bor. An Nebenlegierungen weisen sie weiter 1 bis 3,5 Gew.% Mangan, 4 bis 7,5 Gew.% Kobalt, 2,5 bis 8 Gew.% Kupfer und 0,05 bis 0,25 Gew.% Kohlenstoff auf. (IHOE)

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Additional details

Additional titles

Original title (German)
Zaehe, korrosionsbestaendige, austenitische Legierung

Publishing Information

Imprint Pagination
27 p.
IPC:
Int. Cl. C22C 19/05.
IPC
Int. Cl. C22C 19/05.
Patent number
DE patent document 2641924/A/

INIS

Country of Publication
Germany
Country of Input or Organization
Germany
INIS RN
9373145
Subject category
S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
Descriptors DEI
AGE HARDENING; AUSTENITE; BORON ADDITIONS; CARBON ADDITIONS; CHEMICAL COMPOSITION; CHROMIUM ALLOYS; COBALT ALLOYS; COPPER ALLOYS; CORROSION RESISTANCE; DUCTILITY; FORGING; HARDNESS; HOT WORKING; IRON ALLOYS; MANGANESE ALLOYS; MOLYBDENUM ALLOYS; NICKEL ALLOYS; QUANTITY RATIO; SILICON ALLOYS; SULFURIC ACID; TEMPERING; TENSILE PROPERTIES
Descriptors DEC
ALLOYS; FABRICATION; HARDENING; HEAT TREATMENTS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; MATERIALS WORKING; MECHANICAL PROPERTIES; OXYGEN COMPOUNDS; SULFUR COMPOUNDS; TRANSITION ELEMENT ALLOYS

Optional Information

Notes
1 fig.; 4 tabs.