CORROSION-RESISTANT STEEL "НЕРЖСТОМ" FOR PROSTHETIC DENTISTRY Russian patent published in 2009 - IPC C22C38/58 C22C38/44 

Abstract RU 2354740 C1

FIELD: metallurgy.

SUBSTANCE: steel contains carbon, silicon, manganese, chrome, nickel, molybdenum, nitrogen, iron and unavoidable admixtures, at following components ratio, wt %: carbon 0.1-0.2, silicon 1.3-2.5, manganese 1.0-2.5, chrome 19.0-25.0, nickel 15.0-23.0, molybdenum 2.5-5.5, nitrogen 0.04-0.15, iron and unavoidable admixtures - the rest. Equivalents of austenite former and ferrite former are related by following dependence Aequ/Fequ≥0.85, where Aequ=%Ni+30%C+27%N+0.5%Mn, Fequ=%Cr+%Mo+1.5%Si.

EFFECT: steel hardening, it is provided receiving of stably antimagnetic austenitic structure with keeping of corrosion stability and nontoxility in oral cavity, manufacturability at manufacturing of dental prosthesis.

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RU 2 354 740 C1

Authors

Novichkova Ol'Ga Vasil'Evna

Lebedenko Igor' Jul'Evich

Shakhpazov Evgenij Khristoforovich

Sachina Lidija Aleksandrovna

Peregudov Aleksej Borisovich

Manin Oleg Igorevich

Dubova Ljubov' Valer'Evna

Parunov Vitalij Anatol'Evich

Kolomejtsev Aleksej Aleksandrovich

Savin Vladimir Alekseevich

Panfilova Viktorija Igorevna

Dates

2009-05-10Published

2007-09-14Filed