To say that the advantages of ductile iron pipe fittings are specific in what aspects, then we can first of all be sure to be the strength of the product, and there are facts and data strongly proved. According to experiments, the tensile strength of nodular cast iron is 60k, while that of ordinary gray cast iron is 31k. The two are comparable in another aspect, that is, the yield strength, the lowest yield strength of ductile iron is 40k, while the yield strength of ordinary gray iron is only 36k.
Ductile iron pipe fittings include cast iron straight pipe and pipe fittings, which are generally formed by casting cast iron. Because this kind of pipe labor intensity is not big, so can only be applied to water supply, drainage, gas and other transmission lines. If it is classified according to different casting methods, cast iron pipes can also be divided into continuous cast iron pipes and centrifugal cast iron pipes, and the performance of the products is also different.
The smelting method of ductile iron pipe is similar to that of other industrial casting. The difference is that ductile iron pipe needs to add some corresponding teeing agent before starting casting, such as: Magnesium or rare earth magnesium combined with gold spheroidizing agent is added to hot iron before pouring, so that the graphite spheroidization, stress concentration is reduced, so that the pipe has the advantages of high strength, high elongation, impact resistance, corrosion resistance, good sealing and so on.
And ductile iron pipe fittings are made of ductile iron process, in addition to the basic water transmission, water supply and other purposes, can also be used as anti-corrosion pipeline. This is mainly because ductile iron pipe has excellent performance, at the same time, service life, pressure and other aspects are also very ideal, and because of good anti-corrosion effect by the majority of users.
Post time: Mar-08-2023