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How to test the zinc layer content of hot dipped galvanized steel pipe

Today, as almost all the insiders in steel pipe industry know, hot dipped galvanized steel pipe is worth purchasing compared with other common pipes. Because this type of pipe has zinc coating during its processing, its lifespan is much longer than other ordinary pipes. Besides, it owns very good performance of anti-corrosion. In general, customers would like to purchase the best product with reasonable steel pipe price. Therefore, it seems very important for customers to learn to select the appropriate and satisfactory pipes in conformity with their actual purposes. Generally speaking, qualified galvanized steel pipe has a rigid requirement of the zinc layer content of hot dipped galvanized steel pipe. But how to judge an eligible pipe is the first important step before we intend to select our desired products. Therefore more customers wonder how to test the zinc layer content of galvanized steel pipe? Here we would like to have a brief introduction about that.

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Firstly, we should know that there are distinct testing ways between hot dipped galvanized steel pipe and cold galvanized steel pipe. Because there is no unified requirement of surface zinc layer thickness these two types of steel pipes. By and large, hot dipped galvanized steel pipe price seems higher than cold galvanized steel pipe due to zinc layer content.

Secondly, we ought to pay more attention to the surface smoothness of steel pipe. As a rule, the surface smoothness of steel pipe, to some degree can indicate the amount of zinc coating on galvanized steel pipe. In other words, that is another way for people to make the rough judgment of the zinc layer content of galvanized steel pipe. In other words, a qualified hot dipped steel pipe has the relative smooth surface with little iron exposed.

Thirdly, it is also necessary for customers to acquire enough knowledge about steel pipe prices and various steel pipe sizes. It is believed that it will facilitate customers easily selecting the appropriate product per as different actual application purposes in real life.

Last but not  least, steel pipe manufactures should not neglect the fact that galvanized steel pipe somewhat is restricted by national environmental protection policies, for zinc as kind of harmful substance, to some extent will cause certain pollution to natural environment and play a bad impact on people’s health and normal living life now and then.

Tel: +86 18202256900 Email: steel@fwssteel.com

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