Φ460 mm连轧管机生产大直径不锈钢钢管的实践

    Practice of Manufacturing Large-sized Stainless Steel Tube with Φ460 mm Mandrel Mill

    • 摘要: 介绍了Φ460 mm PQF三辊连轧管机组生产TP304不锈钢钢管的生产工艺、过程控制要点以及产品质量的情况。根据ASME SA 213/SA 213M—2004标准要求,所有奥氏体钢管应是以热处理状态供货,且TP304热处理应加热至最低温度1 040℃,并在水中淬火或用其他方法迅速冷却,在步进炉热处理线上对钢管进行了固溶热处理。生产实践结果表明:Φ460 mm PQF三辊连轧管机组适合轧制高合金不锈钢无缝钢管,且产品的各项技术和性能指标符合ASME SA 213/SA 213M—2004标准要求。

       

      Abstract: Elaborated here in the article are the main aspects of production of the TP304 stainless steel tube with the Φ460 mm 3-roll PQF mill operation line, including the manufacturing process, the tips of in-process control, and the product quality, etc.As required by ASME SA 213/SA 213M-2004, any austenitic steel pipe must be furnished under as-heat treated conditions.And for the TP304 stainless steel tube, it must be heated to minimum 1 040℃, and then quenched with water or with any other process to be quickly cooled down prior to undergoing solid solution heat treatment on the walking beam furnace heat treatment line.The actual production practice shows that the Φ460 mm 3-roll PQF mill is suitable for rolling high alloy stainless steel seamless tubes with all the technical and properties specifications up to the requirements as specified under ASME SA 213/SA 213M-2004.

       

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