Low alloy heat-resisting steel for high temperature use

Specialized metallurgical processes – compositions for use therei – Processes – Free metal or alloy reductant contains magnesium

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75126C, 75126D, 75126E, 75126P, 75128F, 75128T, 75128V, 75128W, C22C 3806, C22C 3822, C22C 3828, C22C 3832

Patent

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043819400

ABSTRACT:
The present invention provides low alloy steels having high strength and toughness, excellent high temperature creep rupture strength and ductility and low sensitivity to temper embrittlement. The alloy steel is a low carbon, low silicon-type Cr-Mo-V low alloy steel, to which are added aluminum, titanium, niobium and Zirconium individually or in combination and further, a small amount of boron.

REFERENCES:
patent: 3643677 (1969-08-01), Nakamura et al.
patent: 4266974 (1981-05-01), Nitta et al.

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