提出了 P91钢管热挤压三通管件国产化的工艺方法 ,重点探讨了国产 P91钢管热挤压三通的质量状况。分析表明 ,P91钢管热挤压三通在正确的工艺指导下 ,可以改善钢管材质的金相组织 ,避免了采用焊接工艺易产生冲击韧性值偏低的问题 ,具有良好的常规和高温机械性能 Proposed domestic P91 pipe hot extrusion tee pipe process, focusing on the domestic P91 steel hot extrusion tee quality status. The analysis shows that under the guidance of the correct process, the P91 steel pipe hot extrusion tee can improve the microstructure of the steel pipe material and avoid the problem that the impact toughness value is low due to the welding process, and has good conventional and high temperature mechanical properties