Ductile steel pipe is a pipe made of ductile cast iron commonly used for potable water transmission and distribution.
This type of pipe is a direct development of earlier cast iron pipe, which it has superseded.The ductile iron used to manufacture the pipe is characterized by the spheroidal or nodular nature of the graphite within the iron. Typically, the pipe is manufactured using centrifugal casting in metal or resin lined moulds.
Protective internal linings and external coatings are often applied to ductile iron pipes to inhibit corrosion: the standard internal lining is cement mortar and standard external coatings include bonded zinc, asphalt or water-based paint. In highly corrosive environments loose polyethylene sleeving (LPS) to encase the pipe may also be used.
Life expectancy of unprotected ductile iron pipes depends on the corrosiveness of soil present and tends to be shorter where soil is highly corrosive. However, a lifespan in excess of 100 years has been estimated for ductile iron pipelines installed using "evolved laying practices", including use of properly installed LPS (polyethylene encasement). Studies of ductile iron pipe's environmental impact have differing findings regarding emissions and energy consumed. Ductile iron pipe manufactured in the United States has been certified as a sustainable product by the Institute for Market Transformation to Sustainability.
Founded in 2000, China Lucky Steel Co., Ltd. has become one of the leading suppliers of steel products in China. We have two factories and four marketing centers with more than 30 production lines and an annual capacity of 900,000 metric tons.
The company mainly specialized in various kinds of steel products, such as hot-dipped galvanized steel pipe, ERW black steel pipe, deformed steel, round bar steel, seamless steel pipe, spiral pipe, angle steel, I-beam, steel channel... We can also customize products according to orders, fulfilling all customers’ requests by providing convenient one-stop service. The company has been certified by BV, and all production process is strictly conforms to the international standard of ASTM A53, BS 1387, JIS G3444, DIN 2440, APL 5L and GB/T 628 to ensure the quality.
China Lucky Steel Co., Ltd always adhere to the tenet of "loyalty and service first", taking sincerity as our life. "To satisfy customers" is our constant business principle. Since the establishment, we have been playing an active role in city construction, especially in 2008 Qingdao Olympics, Undersea tunnel, sea-crossing bridge. We have accumulated much experience in this line, and our products have been well sold worldwide. Through years' development, we have built up great reputation in quality and services among customers all over the world.
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