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Postweld heat treatment process of carbon steel and low alloy steel
Postweld heat treatment process of carbon steel and low alloy steel
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机译:碳钢和低合金钢的焊后热处理工艺
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摘要
The creep strength of a welded joint portion is improved, and damage of the welded joint portion based on the generation or development of cracks is suppressed. A postweld heat treatment process, wherein a welded joint made of carbon steel and low alloy steel is held within austenite single-phase temperature range for a given time and subsequently the joint is cooled by air-cooling or by slow cooling at a cooling rate lower than that of the air-cooling.
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