Hot-dip galvanized steel pipe is widely used in construction, machinery
Hot-dip galvanized steel pipe is widely used in construction, machinery, coal mine, chemical industry, electric power, railway vehicles, automobile industry, highways, Bridges, containers, sports facilities, agricultural machinery, petroleum machinery, prospecting machinery, greenhouse construction and other manufacturing industries.
GI Pipe Factory Direct ASTM A53 Hot Dip Galvanized Pipe
Product application
Hot-dip galvanized steel pipe is widely used in construction, machinery, coal mine, chemical industry, electric power, railway vehicles, automobile industry, highways, Bridges, containers, sports facilities, agricultural machinery, petroleum machinery, prospecting machinery, greenhouse construction and other manufacturing industries.
Galvanized steel pipe is a welded steel pipe with a hot dip plating or electric galvanized layer on the surface. Galvanizing can increase the corrosion resistance of the steel pipe and extend the service life. Galvanized pipe has a wide range of uses, in addition to the pipeline pipe for water, gas, oil and other general low pressure fluids, it is also used as the oil well pipe, oil pipeline, especially in the oil field of the petroleum industry, the oil heater, the condensing cooler of the chemical coking equipment, the tube for the coal distillation and washing oil exchanger, and the pipe for the trestle pipe pile and the support frame of the mine tunnel.
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Production procedure
Technological process is: the clarinet, alkaline cleaning, washing, pickling, rinse, leaching agent, drying, hot dip galvanized - - within the outer wind - air cooling, water cooling, passivation, water rinse, inspection, weighing, warehousing.
Definition
Hot dip galvanizing is made by hot dipping welded pipe in a zinc pool. Hot dip galvanizing is a common anticorrosive process for welded pipes. Therefore, most of the parameters and properties of hot-dip galvanized pipes are the same as those of welded pipes. Compared with pre-galvanizing, hot-dip galvanizing has thick galvanizing layer, uniform coating, strong adhesion, strong corrosion resistance and long service life.
Product common specifications：
Outer diameter O.D: 21.3mm-219.1mm
Thickness W.T: 1.2mm-16mm
LENGTH: The general spot length is 6 meters, the customized length is 4.5m-8m, the common length of the export is 5.8 meters, 5.85 meters, 6 meters and so on. Less than 4.5 meters need double size, cut size fee $7
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HDG GI Steel Pipe/ Hot-dip galvanized round pipe/ hot-dip galvanized square pipe
Surface treatment:
Bare pipe, oiled, painted, remove inside seam, end treatment: plain end, Grooved, Beveled 30-45°, threaded NPT BSPT
GI Hot Rolled Steel Pipe/Hot Finished Steel Pipe
STANDARD STANDARD:
Round tube: GB/T3091. Common foreign standards that can be met are: ASTM A53, ASTM A795(fire pipe standard), BS1387, BS1139, BS EN39, ISO65, EN10217, EN10219.
Square pipe: national standard GB/T3094. Common foreign standards that can be met are: ASTM A500, JIS G3446,EN10219
