What is Seamless Pipe
Seamless steel pipe is a kind of hollow cross-section, no seams around the circle, square, rectangular steel. Seamless steel pipe or solid steel ingot is made of the capillary tube through the hole, then through the hot-rolled, cold rolled or cold call is made. Seamless steel pipe with a hollow cross-section, a large number of pipes for conveying fluids, such as steel and solid steel round bar compared to the same torsional strength in bending, lighter, is an economic cross-section steel, widely used in the manufacture structural parts and mechanical parts, such as drill pipe, automotive drive shafts, bicycle frames and construction using steel scaffolding.
Usage: Seamless steel pipe has better pressure capacity, strength is higher than ERW welded steel pipe. So it is widely applied in high-pressure equipment, and thermal, boiler industries.
Molding process: Seamless steel pipe can be formed one time in the rolling process.
Cost and prices: Usually the seamless steel pipe cost is higher than welded steel pipes, because of the raw material, manufacturing equipment, and processes. But sometimes by the market pressure, the welded pipe is more expensive
A seamless steel pipe is a pipe that does not have any welding seam. The seamless steel pipe will ideally be a solid metal tube with each end connected to another tube without having any welding joint. These pipes have threads either at one end or at both ends and can be threaded to the end of another hollow tube or pipe.
The presence of any seam on a welded pipe acts as a weak point. However, if the tube is seamless, it tends to be solid and overcome various industrial forces and pressures while in operation.
A Seamless steel pipe is extruded and drawn from a billet whereas a welded pipe is produced from a strip that is roll formed and welded to produce a tube. Since a Seamless steel pipe offers a higher range of safety measures it is more expensive than a welded tube.
Since a Seamless steel pipe offers a higher range of safety measures it is more expensive than a welded tube.
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