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首页> 外文期刊>NIPPON STEEL TECHNICAL REPORT >Development of High-Strength Martensitic Stainless Steel YUS 550 for Architectural Use
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Development of High-Strength Martensitic Stainless Steel YUS 550 for Architectural Use

机译：建筑用高强度马氏体不锈钢YUS 550的开发

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摘要

Recently, higher corrosion resistance is necessary for self-drilling and -tapping screws. Conventional high-strength stainless steel wire rods do not have all of the mechanical properties, corrosion resistance, and manufacturability required of self-drilling and -tapping screws, prompting the demand for the development of new stainless steels for this application. Martensitic stainless steels can be improved in hardness and corrosion resistance by keeping the carbon content, nitrogen content, and anti-rusting index (ARI = Cr + 2.4Mo) of suitable levels and preventing the formation of δ-ferrite. A new martensitic stainless steel, designated YUS 550 and designed with an optimum composition (13% Cr, 1.5/2.4% Ni, 2% Mo, 0.16% C, 0.1% N and 0.003% B), has been developed for self-drilling and -tapping screws. Integrated manufacturing conditions have also been established for YUS 550.
机译：最近，对于自钻和自攻螺钉来说，更高的耐腐蚀性是必需的。常规的高强度不锈钢盘条不具有自钻和自攻螺钉所需的所有机械性能，耐蚀性和可制造性，这促使开发用于此应用的新型不锈钢的需求。通过将碳含量，氮含量和防锈指数（ARI = Cr + 2.4Mo）保持在适当的水平并防止形成δ铁素体，可以提高马氏体不锈钢的硬度和耐腐蚀性。已开发出一种新型马氏体不锈钢，用于自钻，该钢具有最佳的成分（13％Cr，1.5 / 2.4％Ni，2％Mo，0.16％C，0.1％N和0.003％B）设计而成和自攻螺钉。还为YUS 550建立了综合制造条件。

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