Changsha Xiangjia Metal Materical Co., Ltd.

Plastic-coated composite steel pipe   is a type of pipe material that is composed of a steel pipe coated with a plastic film. It combines the strength of the steel pipe and the corrosion resistance of the plastic film, making it widely used in various fields. During the manufacturing process of the plastic-coated composite steel pipe, a layer of primer is first applied to the surface of the steel pipe, followed by a layer of plastic film, and finally they are firmly bonded together through thermal fusion. Plastic-coated composite steel pipe has the following advantages: 1. Plastic-coated composite steel pipe uses high-quality materials such as epoxy resin, which is rust-resistant, anti-static, and has good flame-retardant properties. 2. It low fluid resistance, high cost performance, and the coated plastic surface does not rust or scale. The resistance and friction coefficient are lower than ordinary steel pipes. 3. The coated plastic composite steel pipe has multiple connection metho

Alloy steel pipes   are used in low and medium pressure boilers with a working pressure not exceeding 5.88Mpa and a working temperature below 450℃. They are used for heating pipes, economizers, superheaters, reheaters, and pipes for petrochemical industries in high-pressure boilers (with a working pressure generally above 9.8Mpa, a working temperature between 450℃ and 650℃). To enlarge the argon protection area and enhance the protection effect, a large-diameter welding gun nozzle and increase the argon flow rate can be used for welding alloy pipes. If there is obvious splatter material obstructing the argon flow on the nozzle, the splatter material must be removed or the nozzle replaced. The control of the welding temperature of alloy pipes mainly relies on the control of welding speed and welding current. Experimental results have shown that high current and fast welding speed can effectively prevent the generation of gas porosity. It is because welding the seam at a fast speed allo

Steel pipe   for ship is used for shipbuilding. The main materials of ship pipes are 410, 490 and 440. Compared with other material seamless steel pipes (such as 20# seamless steel pipes and 45# seamless steel pipes), they have some advantages, like high corrosion resistance, high pressure resistance and high temperature resistance performance. Its implementation standard is: GB/T5312-1999 (hot rolling, extrusion, pipe expansion pipe), mainly used for Class I and II pressure pipes for ship boilers and superheaters. The common specification range of ship pipe is 14-426*1.5-60. The weight calculation formula of ship pipe: [(outer diameter-wall thickness)*wall thickness]*0.02466=kg/m (weight per meter) Changsha Xiangjia Metal Materical Co., Ltd.  as steel division of  ADTO Group , we have over 20 years of piping materials making experience and insight into Oil & Gas, Water, Mining, Marine and infrastructure and specializing in the production and sales of carbon steel pipes, alloy pip

The full series of   API oil casing pipe   is steel pipes that implement the API SPEC 5CT standard of the American Petroleum Institute, they are used to exploit the oil, natural gas and other resources. Tubing pipe is used in oil wells to extract oil or natural gas. Casing pipe is used as the well wall of oil and gas wells. We are professional pipe manufacture , we can offer API oil casing pipe with outer diameter: Φ26.67mm~Φ219.08mm; wall thickness: 3.18mm~22.2mm. Features of API oil casing pipe It has good geometric dimension accuracy and stable physical and chemical properties; Casing pipe has excellent anti-collapsing strength, which generally exceeds the API standard value by more than 15%; Oil pipe is rolled by the CPE pipe jacking unit, the inner surface quality is leading in China