C - Chemistry – Metallurgy – 22 – C
Patent
C - Chemistry, Metallurgy
22
C
C22C 38/18 (2006.01) C22C 38/40 (2006.01) C22C 38/60 (2006.01) C21D 6/00 (2006.01)
Patent
CA 2318408
A corrosion resistant, martensitic stainless steel alloy is disclosed having the following composition in weight percent: carbon 0.06-0.10, manganese 0.50 max., silicon 0.40 max., phosphorus 0.060 max., sulfur 0.15-0.55, chromium 12.00-12.60, nickel 0.25 max., molybdenum 0.10 max., copper 0.50 max., nitrogen 0.04 max., and the balance is essentially iron. This alloy provides a unique combination of form tool machinability, corrosion resistance, and hardenability, particularly in the annealed condition (100 HRB max.). The alloy is capable of being hardened to at least 35 HRC.
L'invention concerne un alliage d'acier inoxydable martensitique résistant à la corrosion possédant la composition suivante en pourcentage en masse: carbone 0,06-0,10; manganèse 0,50 au max.; silice 0,40 au max.; phosphore 0,060 au max.; soufre 0,15-0,55; chrome 12,00-12,60; nickel 0,25 au max.; molybdène 0,10 au max.; cuivre 0,50 au max.; azote 0,04 au max.; le reste se composant essentiellement de fer. Cet alliage constitue une combinaison unique d'usinabilité d'outil de forme, de résistance à la corrosion et de trempabilité, notamment à l'état recuit (100 HRB au max.). L'alliage peut être durci jusqu'à au moins 35 HRC.
Bereskin & Parr
Crs Holdings Inc.
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