Austenitic stainless steel having high properties
AssigneesCreusot-Loire Industrie, Tecphy
InventorsFrancois Dupoiron, Jean-Christophe Gagnepain, Richard Cozar, Bernard Mayonobe
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Abstract
The invention provides a steel containing by weight 23% .ltoreq.Cr.ltoreq.28%; 15%.ltoreq.Ni.ltoreq.28%; 0.5%.ltoreq.Mn.ltoreq.6%; 3%.ltoreq.Mo.ltoreq.8%; 0.35%.ltoreq.N.ltoreq.0.8%; and 1%.ltoreq.W.ltoreq.5%. The steel has a high resistance to corrosion and may be used for manufacturing massive parts for any application, in particular for manufacturing equipment for oil platforms and chemical works, containers for transporting corrosive products, ship hulls and ply sheets.
Claims14
Austenitic stainless steel having high mechanical properties, high resistance to corrosion and a high structural stability, and a chemical composition comprising by weight:
- 23%.ltoreq.Cr.ltoreq.28%;
- 15%.ltoreq.Ni.ltoreq.28%;
- 0.5%.ltoreq.Mn.ltoreq.6%;
- 0% .ltoreq.Cu.ltoreq.5%;
- 0% .ltoreq.C.ltoreq.0.06%;
- 0% .ltoreq.Si.ltoreq.1%;
- 0% .ltoreq.Nb.ltoreq.0.5%;
- 0% .ltoreq.V.ltoreq.0.5%;
- 0% .ltoreq.Al.ltoreq.0.1%;
- 3% .ltoreq.Mo.ltoreq.8%;
- 0.35% .ltoreq.N.ltoreq.0.8%;
- 1% .ltoreq.W.ltoreq.5%;
- and
- the remainder being iron and impurities related to the preparation thereof.
Dependencies are inferred from the claim text.