Mechanical properties of ductile iron pipe to get a better improvement

2014-01-07


Short di pipes, for buyers is very important, because the serious consequences of ductile iron pipes are widely used in water supply, if you buy a poor quality of ductile iron pipe, it not only affects the progress of the project, if the occurrence would violate the law, to bear the corresponding legal responsibility. So first a brief performance on ductile iron pipe line. Ductile iron pipe performance: ductile iron pipe is cast iron pipe class is an important classification, Double Flanged Pipes is an alloy of iron, carbon and silicon. Spheroidal graphite ductile iron is present in the form of free graphite, so nodular cast iron, spheroidal graphite eliminate this damaging effects to make it tough. Average size of 6-7 grade graphite, cast pipe required level of control of the ball to the 1-3 level (ball rate ≥ 80%) on the quality, and thus the mechanical properties of the material itself has been good improvement with iron nature, steel properties. Annealed ductile iron pipe, the microstructure of ferrite plus a small amount of pearl physical, mechanical performance has been greatly improved.