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Galvanized steel pipe, in order to improve the corrosion resistance of steel tube, for galvanized welded steel pipe commonly. Zinc galvanization steel tube hot dip galvanized and electrical steel, hot dip galvanized zinc coating thickness, the cost of electric is low. Oxygen tube welding is used for steelmaking oxygen tube. It is generally with small diameter welding pipe, specifications by 3/8 inch - 2 inch eight. With 8, 10, 15, 20, or Q195 - made of Q235 steel strip. For corrosion protection, some aluminized processing.
The wire casing is ordinary carbon welded steel pipe, used in concrete and various power distribution project, common nominal diameter from 13-76 - mm. Wire set set wall is thinner, mostly for coating or galvanized after use, requirements for cold bending test. The metric system of welded pipe, which specifications in the form of a seamless tube, expressed in mm outside diameter with thick wall of welded steel pipe. It can be used for ordinary carbon steel, quality carbon steel or low alloy steel in the tropics, cold welding, or with tropical again after the cold welding method is made. Metric can tube welding points, and thin wall, the common used as a structure, such as transmission shaft, or transmission fluid, thin wall used to make furniture, lamps and lanterns and so on to ensure that the steel pipe strength and bending test.
The roller tube is used in belt conveyor roller welded steel pipe. Q215, Q235A, B are commonly used in steel and 20 steel manufacture, 63.5 219.0 mm in diameter. Of tube bending, end face to the center line of the vertical, ovality has certain requirements, general water pressure and the flattening test. Transformer tube is used in the manufacture of transformer radiator pipe and other heat exchanger. It is using common carbon steel manufacturing, requirement of flattening, flaring, bending and hydraulic test. Welded steel pipe to length or delivery times ruler, steel tube bending has certain requirements. Welding thin wall pipe is mainly used for making furniture, toys, lamps and so on. The current belt made of stainless steel thin wall welded steel pipe application is very wide, senior furniture, decoration, fencing and so on.
General welded pipe is used for transporting low pressure liquid. Use Q195A, Q215A, Q235A steel manufacturing. Also can be used to other mild steel welding manufacturing. Welded steel pipe for pressure, bending, flattening and so on experiment, the surface quality is a certain request, usually the delivery length is from 4 to 10 m, which often required scale delivery of the goods. Of the specifications of the welded steel pipe in nominal diameter nominal diameter is different from the actual, welded pipe with wall thickness by the regulation with ordinary steel pipe and thickening steel pipe, steel pipe and the form of the pipe end points with thread and don't take two.
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