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Threaded Steel Pipe
SPECIFICATIONS
Threaded Steel Pipe
The threaded steel pipe is also called the Low rib tube, which mainly relies on the outer rib (rib coefficient of 2-3) to enlarge the Heat transfer area, which is generally used in the case that the heat coefficient of the tube is times larger than that of the tube. For the outside of the tube condensation and boiling, due to the effect of surface tension, also has a good strengthening role.
Main material：Q235A、Q23b、Q345、 L245、L290、X42、 X46、X70、 X80。
Threaded Steel pipe is a low-carbon mechanism steel or low alloy structural steel strip，rolled into tube billet at a certain helix angle and then welded pipe seam, it can use a narrow strip steel to produce large diameter steel pipes. Threaded steel welded pipe is important for oil and gas transportation pipelines, its specifications are realized by the product of OD and wall thickness. Threaded steel welded pipe with single-sided welding and double-sided welding, welded pipe should ensure that water pressure test, weld tensile strength and cold bending to comply with the provisions.
Large-diameter thick-walled threaded steel pipe generally used in natural gas, petroleum, chemical, electric power, heat, water supply and drainage, steam heating, hydropower stations, such as pressure steel pipe, thermal power gereration, source and other long distance transmission pipelines and piles, dredging, bridges, steel structures and other engineering categories.
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