Seamless stainless steel pipes bearing nitric acid corrosion is one of high-technology products researched and developed by FENGTAI and Beijing Steel Academe. They mainly are high-Si Austenitic seamless stainless steel pipes with kinds of outside diameter, main grade includes: KY704 (C4 steel), KY705 (C5 steel) and so on. Through technique improvement of FENGHUA and Beijing Steel Academe, we have effectively solved kinds of rupture during production of KY704 (C4 steel), KY705 (C5 steel) and so on Austenitic seamless stainless steel pipes with high-Si content. These products have satisfied requirements of Cangzhou Dahua Group Ltd, Anhui Huaihua Group Co., Ltd, CNPC Lanzhou Petrol-Chemical Company etc, seven strong nitric acid manufactures and got excellent feed back from them.

 

Production Specifications:

GB 13296-2007 Specification for seamless stainless steel boiler, heat-exchanger tubes

GB/T14976-2002 Stainless steel seamless tubes for fluid transport

 

Main Grade: KY704 (C4 steel)KY705 (C5 steel)

 

Size Range:φ6~159X0.5~12mm