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Types of Pipe

Date:2019-04-02    keywords:type, pipe
Galvanized steel pipes: In order to improve the corrosion resistance of steel pipes, general steel pipes (black pipes) are galvanized. Galvanized steel pipes are divided into hot-dip galvanizing and electric steel zinc. The hot-dip galvanizing galvanized layer is thick and the cost of electro-galvanizing is low.

Blowing oxygen welded pipe: used as a steel pipe for oxygen blowing, generally with small diameter welded steel pipe, the specifications are from 8/8 inch to 2 inch. Made of 08, 10, 15, 20 or Q195-Q235 steel strip. For corrosion protection, some are aluminized.

Wire bushing: It is also an ordinary carbon steel electric welded steel pipe used in concrete and various structural power distribution projects. The commonly used nominal diameter is from 13-76mm. The sleeve of the wire sleeve is thin, and most of it is coated or galvanized, and a cold bend test is required.

Metric welded pipe: The specification is in the form of seamless pipe. The welded steel pipe is expressed by the outer diameter * wall thickness and millimeter. It is welded with tropical carbon steel, high quality carbon steel or plain low alloy steel, or after tropical welding. It is made by cold dialing. Metric welded pipes can be divided into general and thin walls, commonly used as structural parts, such as transmission shafts, or to transport fluids. Thin walls are used to produce furniture, lamps, etc., to ensure the strength and bending test of steel pipes.

Roller tube: used for belt conveyor electric welding steel pipe, generally made of Q215, Q235A, B steel and 20 steel, diameter 63.5-219.0mm. The pipe bending degree, the end surface should be perpendicular to the center line, and the ellipticity has certain requirements, and the water pressure and flattening test are generally performed.

Transformer tube: used to manufacture transformer heat pipes and other heat exchangers. It is made of ordinary carbon steel and requires flattening, flare, bending and hydraulic testing. Steel pipes are delivered in fixed lengths or multiples, which have certain requirements for the bending of steel pipes. Shaped tube: square tube, rectangular tube, hat tube, and empty rubber steel door and window steel tube welded by ordinary carbon knot structural steel and 16Mn steel, mainly used as agricultural machinery components, steel window doors, etc.

Electric welding thin wall tube: mainly used to make furniture, toys, lamps and so on. In recent years, thin-walled tubes made of stainless steel strips have been widely used, such as high-grade furniture, decoration, and fences. Spiral welded pipe: It is made by rolling a low carbon carbon structural steel or a low alloy structural steel strip into a tube blank at a certain angle of a helix (called a forming angle), and then welding the pipe seam, which can be used in a narrower manner. Strip steel for the production of large diameter steel pipes. Spiral welded pipe is mainly used for oil and natural gas transmission pipelines, and its specifications are expressed by outer diameter * wall thickness. Spiral welded pipes are single-sided welded and double-sided welded. The welded pipe shall ensure that the hydraulic test and the tensile strength and cold bending performance of the weld are in compliance with the regulations.

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