STD 12m Galvanized Carbon Steel Pipe DN125 Sch40

DN80 DN100 DN125 Sch40 STD Thickness Astm A53 Galvanized Carbon Steel Pipe

Hot dip galvanized pipe is to make molten metal and iron matrix reaction to produce alloy layer, so that the substrate and coating are combined.Hot dip galvanizing is to pickle the steel pipe first. In order to remove the iron oxide on the surface of the steel pipe, after pickling, it is cleaned by ammonium chloride or zinc chloride aqueous solution or ammonium chloride and zinc chloride mixed aqueous solution tank, and then sent into the hot dip plating tank.

Galvanized steel tubes are welded steel tubes with hot dip or electric galvanized coating on the surface.Galvanizing can increase the corrosion resistance of steel pipe and prolong its service life.Galvanized pipe USES is very wide, in addition to a general low pressure fluid such as water, gas, oil line pipe, also used as oil industry, especially the ocean oil field oil well pipe, oil pipe, chemical coking equipment of oil heater, the condensing, exchange of coal distillation wash oil cooler for tube, and trestle pile, mining tunnel supporting frame tube, etc.Hot dip galvanizing has the advantages of uniform coating, strong adhesion and long service life.The complex physical and chemical reactions between the matrix of hot dip galvanized steel tube and the molten bath result in the formation of a tight and corrosion-resistant zinc-ferroalloy layer.The alloy layer is integrated with pure zinc layer and steel tube matrix, so it has strong corrosion resistance.

Hot dip galvanized steel pipe is widely used in construction, machinery, coal mine, chemical industry, electric power, railway vehicles, automobile industry, roads, Bridges, containers, sports facilities, agricultural machinery, petroleum machinery, prospecting machinery and other manufacturing industries.Astm a53 standard The dimensionless designators NPS (nominal pipe size) [DN(diameter nominal)] have been substituted in this specifification for such traditional terms as “nominal diameter,” “size,” and “nominal size.”The term nominal wall thickness has been assigned for the purpose of convenient designation, existing in name only, and is used to distinguish it from the actual wall thickness, which may vary over or under the nominal wall thickness.