The main components of ductile iron pipe with carbon, silicon, manganese, sulfur, phosphorus and magnesium. Implementation of standards GB / T13295-2003 ISO2531 / 2003 ductile iron pipe is defined using the 18th over after adding cast iron ball agent, after the high-speed centrifugal ductile iron casting machine into the pipes, called "ductile iron pipe" (DuctileCastIron Pipes) Baoji k9 ductile iron pipe, referred to as the tube, ductile iron pipe and ductile iron pipe and so on. Ductile iron pipe, compared with gray cast iron pipe, high strength, good toughness, thin wall, metal with less, can withstand high pressures in emerging k9 ductile iron pipe, the effective length of 5 m and 6 m; according to the thickness different points P, G two. Is the development direction of the cast iron pipe. The connection between the pipe and the pipe Shaanxi k9 ductile iron pipe, using socket type or flanged interface form; according to the functions can be divided into two kinds of flexible interface and a rigid interface. Flexible interface with a rubber ring seal, to allow a certain limit angle and displacement, which has a good shock resistance and sealing, easy to install quickly than rigid interface k9 ductile iron pipe, according to the casting methods, small labor intensity. Ductile iron pipe water supply main ingredients are carbon, silicon, manganese, sulfur, phosphorus and magnesium. Minimum tensile strength: 420 / Mpa, minimum yield strength: 300 / Mpa, the minimum elongation 7% GB / T13295-2008 ISO2531-2009 Diameter: DN80-DN2600 advantage ductile iron pipe water supply: 1, energy conservation, the main material for sand, stone, local materials. 2, not aging, thermal expansion and contraction of small, long-term exposure to sunlight should be stored at room temperature for more than 40 ℃. 3, high strength, high compression performance, construction unlikely to cause deformation. The default size of the head of the company STO / Remittance / tact / in the pass / rhyme! Shaanxi k9 ductile iron pipe _ virtue of Industry (certified) _ Gannan k9 ductile iron pipe is provided by virtue of Liaocheng Industry Co., Ltd. Liaocheng virtue Pipe Co., Ltd. (www.meidegc.com) (www.meidegc.com) (www.mdwfg.com) (www.mdggc.com) Shandong Liaocheng, steel leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Industry leaders in the United States and Germany with the staff warmly welcome all inquiries negotiations to create the virtues pipe industry a better future.