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Nippon Steel Corp
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Nippon Steel Corp
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Publication date
Application filed by Nippon Steel CorpfiledCriticalNippon Steel Corp
Priority to JP16472878ApriorityCriticalpatent/JPS5839909B2/en
Publication of JPS5591962ApublicationCriticalpatent/JPS5591962A/en
Publication of JPS5839909B2publicationCriticalpatent/JPS5839909B2/en
Solid-Phase Diffusion Into Metallic Material Surfaces
(AREA)
Abstract
PURPOSE: To enhance the temper brittleness resistance and hydrogen brittleness resistance of a low alloy steel by adding a specified amt. or more of sol. metallic Al to the steel.
CONSTITUTION: To a steel contg. C 0.05W0.40%, Si 0.02W0.60%, Mn 0.02W 2.00%, Mo 0.02W3.00%, Cr 0.02W5.00% and Ni 0.02W10.00% as basic components is added sol. metallic Al≥0.150% other than an amt. of Al to be consumed as AlN by N in the steel. Si+Mn≤0.20% may be contained in place of the above-mentioned Si and Mn, and other special elements added as required and inevitable impurities are also contained in the steel.
COPYRIGHT: (C)1980,JPO&Japio
JP16472878A1978-12-281978-12-28
Low alloy steel with excellent resistance to tempering and brittleness
ExpiredJPS5839909B2
(en)