As a new heat-resistant steel developed in recent years,P91 steel has become the preferred material for high-temperature pipeline supports and hangers.According to the allowable stress limit stipulated in ASME NF,the study calculates the allowable stress of the support hanger.According to the operating environment of the support hanger of high temperature pipeline,the study selects three environmental conditions of normal temperature,300℃and 500℃to conduct strength theoretical test study on the bearing mechanical properties of the support hanger of high temperature pipeline.The strength test of high temperature pipeline support and hanger is carried out according to the actual operating condition.The results show that P91 material high temperature pipe support hanger can operate normally under high temperature and high load,and meet the requirements of use.
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