How to Welded Steel Pipe

Welded Steel Pipe firstly clean up the clean weld oil,paint,water,rust,and groove according to wall thickness,the thick wall thickness must open  large groove,the thin wall thickness can open a small groove(angle grinder),then that is the product of the gapgeneral welding rod,wire diameter 1 – 1.5 times,if you groove open big with careless,it may be appropriate to stay small.Tack welding at least three points,generally four points better work.
Welded steel pipe must be welding should be half and half,starting preferably more than the lowest point of about one centimeter from the opposite side as the connector.If the wall thickness is thick,it should be layered,at least two layers,the first layer must full circle finished welding,then it can weld the second layer.

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