The difficulties and resolve methods concern with SA-335P91 made header fabrication process are introduced herein such as header ruling, girth welding, nozzle and accessories.

针对高温强度较高的SA - 335P91材料在产品中的应用，尤其是在集箱制造工艺上的情况进行了简介。

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This article discusses the method and accuracy for header differential steel nozzle fillet magnetic particle inspection, and shows the actual dissection result that the author did on products.

对集箱异种钢管接头角焊缝磁粉探伤的方法和准确性进行了探讨，并在产品上进行了实物解剖验证。

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