HEAT-RESISTANT STEEL FOR STEEL PIPES AND CASTINGS
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United States of America Patent
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Jun 20, 2024
app pub date -
Jan 20, 2021
filing date -
Jan 20, 2021
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Abstract
The present invention provides an element composition and use of a heat-resistant steel for steel pipes and castings. The present invention further provides a preparation method and use of a steel pipe and a casting. The heat-resistant steel for steel pipes and castings provided by the present invention according to preferred element composition can be used to prepare the heat-resistant steel pipe and the casting with excellent properties through the preparation steps thereof. The steel pipe and the casting prepared from this heat-resistant steel have excellent creep rupture strength, and can satisfy the use requirements of pressure vessels or parts of power machinery with a working temperature of 650° C. and below 650° C.
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