Ductile Iron Pipe, Steel Pipe, Q&A, Interview Question, Important Questions, Knowledge,

Описание к видео Ductile Iron Pipe, Steel Pipe, Q&A, Interview Question, Important Questions, Knowledge,

For watermain pipe size less than 600mm, ductile iron is normally used because internal welding for steel pipes below 600mm is difficult to be carried out. Moreover, it requires only simple jointing details which allow for faster rate of construction. For watermain pipe size above 600mm, steel pipes are recommended because steel pipes are lighter than ductile iron pipes for the same material strength and therefore the cost of steel pipes is less than that of ductile iron pipes. In addition, in areas of difficult access the lighter mild steel pipes pose an advantage over ductile iron pipes for easy handling.
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