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) centrifugal ductile iron pipe plant, referred to as the ball pipe, ductile iron pipe and ductile iron pipe and so on. Ductile iron pipe compared with gray cast iron pipe, strength, toughness, thin wall, metal with less, can withstand high pressure dn500 centrifugal 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, 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, simple and rapid than the rigid interface is installed, according to the casting methods, small labor intensity. The main components of ductile iron pipe with carbon, silicon, manganese, sulfur, phosphorus and magnesium. On the ferrite and pearlite matrix distribution spherical graphite certain number of different caliber and elongation requirements based on the nominal ratio of the matrix organization ferrite and pearlite differ dn600 centrifugal ductile iron pipe, small diameter ratio of the general control of pearlite generally not more than 20%, large diameter of about 25%. Minimum tensile strength: 420 / Mpa, minimum yield strength 300 / Mpa, the minimum elongation of 7%. Ductile iron pipe performance standards GB / T13295-2008ISO2531 / 2008. Centrifugal ductile iron pipe ductile iron pipe plant in Yan'an _ _ by virtue Pipe Industry Co., Ltd Liaocheng virtue. Liaocheng virtue Pipe Co., Ltd. (www.meidegc.com) (www.meidegc.com) (www.mdwfg.com) (www.mdggc.com) strong, credible, Liaocheng in Shandong steel industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead virtue of Industry and you work into the brilliant, for a better future!