Martensitic stainless steel alloy for use with surgical needles

A martensitic stainless steel alloy comprised of 11.5 to 12.5% chromium by weight, between 9.5 and 10.2% nickel by weight, molybdenum 0 to 4.7% and the combination of titanium and tantalum ranging from 0.89% to 5.6%, with the remainder comprising iron and trace elements, containing less than 0.1% ca...

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Bibliographische Detailangaben
Hauptverfasser:	BENDEL, LEE P, STUNGURYS, LEON K, LAVIN, JEFFREY T, MCGRANE, MATTHEW J, TROZZO, LAWRENCE P, FLOREZ, HUGO R, MCVEY, JEFFREY K, SARDELIS, TIMOTHY
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ALLOYS CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS, ORSURGICAL ARTICLES CHEMISTRY DIAGNOSIS DISINFECTION, STERILISATION, OR DEODORISATION OF AIR FERROUS OR NON-FERROUS ALLOYS HUMAN NECESSITIES HYGIENE IDENTIFICATION INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS, OR SURGICALARTICLES MEASURING MEDICAL OR VETERINARY SCIENCE METALLURGY METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS INGENERAL PHYSICS SURGERY TESTING TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	A martensitic stainless steel alloy comprised of 11.5 to 12.5% chromium by weight, between 9.5 and 10.2% nickel by weight, molybdenum 0 to 4.7% and the combination of titanium and tantalum ranging from 0.89% to 5.6%, with the remainder comprising iron and trace elements, containing less than 0.1% carbon is claimed. The formula for martensite finish temperature, Mf ( DEG F), enables one to predict the temperature at which a steel is entirely converted to martensite, and is described as Mf = 1027 - 78% Ni - 27% Ti - 34% Mo. A desirable needle alloy for this amount is nickel at 10%, molybdenum at about 2.7%, and titanium at about 2%.