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Hebei haihao high pressure flange & pipe fitting group was established in 1982, located in Mengcun County the hometown of pipe fittings in China.

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Difference between cold galvanizing and hot galvanizing

In the production of galvanized pipe fittings,especially galvanized elbow and galvanized reducer,cold galvanizing and hot galvanizing are often used.Customers sometimes choose a certain galvanizing method according to their own needs.The price of two kinds of galvanization method is different,craft also is different,below we are analysed in detail for everybody cold galvanization and hot galvanization distinction.

Cold galvanized slip on flanges finished in Haihao Group

Cold galvanized slip on flanges finished in Haihao Group

  • From the price point of view,hot galvanized to be higher than cold galvanized,cold galvanized can choose as long as the outside of a layer of galvanized,there is no inside,and hot galvanized to be fully plated.
  • From the perspective of principle,hot galvanizing is firstly to melt the zinc ingot and add some materials,and then put the pipe fitting into the zinc solution,making the inner and outer surface of the pipe fitting adhere to a layer of zinc layer;Cold galvanizing is first electrolytic zinc salt solution,and then directly to the pipe coating.So hot galvanized relatively cold galvanized coating uniform,thick,and not easy to fall off.
  • From the production process,hot galvanized process requirements are unoil,pickling,dipping,drying,cold galvanized process requirements are unoil,pickling,electrolysis,hot galvanized production process is more complex,and cold galvanized simple operation.
  • From the appearance,hot galvanized appearance looks thick,strong texture,cold galvanized looks more smooth, delicate.The zinc layer of hot galvanizing is much thicker than cold galvanizing, so its anti-corrosive ability is also much higher.
Cold galvanized pipe fittings products finished in Haihao Group

Cold galvanized pipe fittings products finished in Haihao Group

We can supply cold galvanized and hot galvanized pipe fittings and flanges products and our products used well in our customers’ pipeline system.For more information,please contact us feel free.Email:sales@haihaogroup.com

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