Difference between the American Standard Schxs and SCH80 of marine Stainless Steel pipes
(1) The canonical component tube is indicated by STD;
(2) The thickened tube is indicated by XS;
(3) The thick tube is indicated by XXS.
(4) ≤dn250mm tube, Sch40 equivalent to Std tube;
≤dn200mm Tube, Sch80 equivalent to XS Tube.
The American Standard steel pipe is a kind of strip steel with hollow section and no seams around. Steel pipe with hollow section, many used to transport fluid pipeline, American standard seamless steel pipe used to transport oil, gas, gas, water and some solid materials pipelines. Compared with solid steel such as steel pipe and steel bar, the flexural and torsional strength is the same, the weight is lighter, it is a kind of economic section steel, it is widely used to make structural parts and mechanical parts, such as oil drill pipe, car drive shaft, bicycle frame and steel scaffold used in construction. The annular parts made of steel pipe can improve data utilization, simplify production process, save data and processing hours, such as rolling bearing ferrule, Jack sleeve and so on, and have been widely used in steel pipe production. Steel pipe is still a variety of conventional weapons can not be a shortage of information, barrel, barrel, etc. to be made of steel pipe. The steel pipe can be divided into round pipe and irregular pipe according to the cross-sectional area shape. Because the circumference is flat, the circle area is the largest, with a circular tube capable of transporting more fluids. In addition, the ring section in the acceptance of internal or external radial pressure, the force is more uniform, thus, the vast majority of steel tubes are round tubes.