P91 alloy tube according to GB / T8162-87 provisions 1, Specification: Hot tube diameter 32 ~ 630mm. Wall thickness of 2.5 ~ 75mm. Cold-rolled (cold drawn) tube diameter 5 ~ 200mm. Wall thickness of 2.5 ~ 12mm. 2, the appearance of quality: the inner and outer surfaces of the steel pipe shall not have cracks, folded, rolled off, separation, hairline and scarring defects. These defects should be completely removed t91 material, the wall and the outer diameter than the negative deviation after clearing. 3, both ends of the pipe should be cut at right angles, and clear the glitch. Pipe wall thickness greater than 20mm to allow hot gas cutting and sawing. Agreement by both parties may not cut head. 4, drawn or cold rolled precision P91 alloy tube "surface quality" reference GB3639-83. Our company is a professional T91 alloy tube, p91 ??alloy tube, 1cr5mo alloy tubes, boiler tubes, alloy pipe, stainless steel bar, alloy steel bar, carbon steel bar t91, alloy plate, boiler plate container plate, stainless steel plate large sales enterprises, T91 alloy tube in a high reputation in the industry t91 steel, high-quality annual operating Chengdu, Baotou Steel, Lu Po, Anshan, Anyang, Tianjin, Zhejiang, Tianjin t91, Shanghai, and other major steel mills of steel, complete specifications, quality and quantity. Implementation of national standards GB / T8162-1999, GB / T8163-1999, GB / T3087-1999, GB / T5310-1995, GB / T6479-2000, GB / T9948-2006 and so on. t91 material, Yichang t91, Katherine source of steel provided by source Pipe Co., Ltd. Liaocheng trillion. Liaocheng Katherine source Pipe Co., Ltd. (www.lczygg.com) strong, credible, Liaocheng in Shandong steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving Katherine source of innovative ideas will lead pipe and you work into the brilliant, for a better future!