大直徑厚壁TP347H不銹鋼管的研制與開發(fā)

Research and Development of Large-sized Heavy-wall TP347H Stainless Steel Pipe

摘要: 攀鋼集團成都鋼釩有限公司采用離心澆鑄制坯經(jīng)皮爾格軋機軋管工藝,開發(fā)出規(guī)格為Φ355.6mm×42.8mm大直徑厚壁TP347H不銹鋼管,經(jīng)檢測其各項技術(shù)指標(biāo)均滿足ASME A 312標(biāo)準(zhǔn)要求,性能良好,且鋼管的縱、橫向性能均勻。所用工藝結(jié)合了離心澆鑄管坯和熱軋成型雙聯(lián)工藝的優(yōu)點,效果良好。該大直徑厚壁TP347H不銹鋼管的研制成功,對于推動大直徑厚壁不銹鋼管的國產(chǎn)化有著積極的意義。

Abstract: The Φ355.6 mm×42.8 mm large-sized heavy-wall TP347H stainless steel pipe has been developed by Pangang Group Chengdu Steel and Vanadium Co.,Ltd. by means of the process of billet centrifugal casting plus rolling with Pilger mill. Relevant testing and inspection results show that all the technical indexes of the said pipe are in compliance with the requirements as specified in ASME A 312,and that the pipe is of good properties, and fine homogeneity of both longitudinal and transversal properties. Thanks to the advantages of the billet centrifugal casting plus hot-rolling combined process,the research and development result is excellent. There is no doubt that the successful development of the large-sized heavy-wall TP347H stainless steel pipe is significant in speeding up production localization of large-sized heavy-wall stainless steel tubes.