Welded Pre Galvanized Steel Pipe

The pre-galvanized welded steel pipe refers to welded tube which undergo degreasing, rush removal,phosphorization, zand drying processes before galvanization.
  The treatments before galvanization allow the product to be conveniently plated with a zinc coating,and also ensure uniform coating thickness,strong coating adhesion,and improved corrosion resistance.
  The per-galvanized welded pipes are widely used in heat,water,and natural gas supply systems,agricultural greenhouse construction,steel structure construction,as well as low and medium pressure piping system.
  This pre galvanized steel pipe shall be manufactured from pre-galvanized steel conforming to ASTM A53. The coated steel shall be cold formed and welded into tube utilizing the high frequency induction welding process capable of forming a weld bead stronger than the parent metal. The outside coating damaged during welding shall be repaired by metallizing (spraying molten zinc wire). The inside weld area damaged during welding shall be left unprotected.
  We can produce and supply to you various steel pipes according to international standard. Pre-galvanized steel pipes are used in the following fields, steel structure, build structure, guard rail, fence, metal furniture etc. our products are exported to about 50 countries in the world, we get a lot of recognition from many customers since our good quality and service.
  Production standard: ASTM, JIS, BS, DIN, EN, API, GB
  Section type: round, square, rectangular, oval and other special section type.

DN	INCH	OD(mm)	WT(mm)	DN	INCH	OD(mm)	WT(mm)
15	1/2'	21.3	1.1-2.75	90	3 1/2'	108	2.0-4.5
20	3/4'	26	1.1-3.0	100	4'	114	2.0-4.75
25	1'	33.4	1.1-3.25	125	5'	140	2.0-4.75
32	1 1/4'	42.2	1.5-3.5	150	6'	165	2.0-4.75
40	1 1/2'	48.3	1.5-3.75	200	8'	219	3.0-6.25
50	2'	60.3	1.5-4.0	250	10'	273	3.0-6.25
65	2 1/2'	76	2.0-4.0	300	12'	325	3.0-10
80	3'	89	2.0-4.0	350	14'	355	3.0-10

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