Liaocheng virtue Pipe Co., Ltd. ductile iron pipe is ideal for urban water supply pipes, gas pipeline network, high-set strength, ductility, and corrosion resistance and strong advantages, dn1600 ductile iron pipe, with the nature of iron, steel performance, is Traditional cast iron pipe replacement and ordinary steel products; the main component of ductile iron pipe carbon, silicon, manganese, sulfur, phosphorus and magnesium. On the ferrite and pearlite matrix distributed a certain number of spherical graphite, different caliber and to extend the requirement based on the nominal rate, the proportion of the matrix structure of ferrite and pearlite is different, small-diameter ratio of pearlite generally not more than 20% of large diameter generally controlled at about 25%. Minimum tensile strength: 420 / Mpa, minimum yield strength 300 / Mpa, a minimum elongation of 7%. Ductile iron pipe performance standards GB / T13295-2008 ISO2531 / 2008. Water-cooled metal mold centrifugal ductile iron pipe production technology and equipment 94 through the national scientific and technological achievements; ductile iron pipe was named the year 1994 state-level new products; ductile iron pipe in 2002 won the national quality metallurgical products Gold Award. Products undergo strict composition analysis, metallurgical testing, dimensional inspection, surface quality inspection, pressure ring test, tensile testing, hardness testing, hydrostatic testing, leak test, the thickness of the lining and the outer coating, such as quality inspection. All of the above test items qualified rear allowed the factory. GB ductile iron pipe specifications --- k9 grade ductile iron pipe specifications Spot / T-type connector to pipe ductile iron pipe Daquan --- GB k9 grade ductile iron pipe ---- T-ductile iron pipe essence has iron, steel performance, excellent corrosion resistance, ductility is good, easy to install, mainly used for municipal, industrial and mining water, gas and so on. Graphite cast iron graphite is spherical equivalent spherical cast iron there are many gaps. Influence of spherical voids than a sheet of cast iron strength small gap, so high strength ductile cast iron strength than normal number of "ductile iron pipe." publish and implement national standards, is a tube mold manufacturing industry is a major event, ductile iron pipe prices, for the rapid development of pipe mold industry provides an important basis for strengthening our product quality pipe mold, pipe mold of standardized products on the market, protect and promote the sustainable development of China's mold industry and the tube to improve the international competitiveness of China's manufacturing industries have played a positive role in promoting. Liaocheng virtue Pipe Co., Ltd. is a production and sales: ductile iron pipe, ductile iron pipe Yunnan, flexible interface cast iron pipes, fittings, large enterprise specialized in ductile pipe fittings, manhole covers casting the production process have reached advanced domestic Level. Ductile iron pipe fittings strictly enforce the national standard GB13295-2003 and international standards of ISO2531, EN545 standard, covers the implementation of EN124 standard. At present, our company's pipe products specifications DN80-DN800, also can arrange production according to other standards required by the user. Fittings annual production of two hundred thousand tons have been sold to domestic provinces and Europe, the Middle East, Southeast Asia and other countries and regions. Perfection Since its establishment, has always pursued 'quality first' purpose, mold shop, machine shop, hydraulic workshops, laboratories, workshops and other sand processing and testing equipment, and in 2002 passed the ISO9001: 2000 quality management system certification. Management of ductile iron weight, the virtues of Industry, Yunnan ductile iron pipe is provided by virtue Liaocheng Industry Co., Ltd. Management of ductile iron weight, the virtues of Industry, Yunnan ductile iron pipe is virtue Pipe Co., Ltd. Liaocheng (www.meidegc.com) (www.meidegc.com) (www.mdwfg.com) (www.mdggc.com) this year launched a new upgrade, the above picture is for reference only, please call the telephone or pictures on this page, for the latest information, contact: Hvdroxide.