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Paramtents
Shape Round
Color Silver White or Black
Usage Conveying pipeline
Original Tianjin, China
Alloy Or Not Non-alloy
Length 1-12m
Thickness 0.4-35mm
Out Diameter: 15.9-2020mm
Technique Hot Rolled
Packging & Delivery
Min Order1 metric ton
Briefing
Detailed
Seamless Carbon Steel Round Pipe Tubing for Conveying Fluid
Seamless pipe is produced domestically in sizes NPS 'Ie through NPS 26 00. Seamless pipe is produced without a seam or weld in the circumference.
Seamless pipe is produced by a variety of methods. To put it in its most simple terms, seamless pipe is produced by piercing a solid billet of deoxidized and conditioned steel, which has been properly prepared and heated to the proper temperature.
It is then processed through a series of mills where the pipe is finished to its prescribed dimensions.
Seamless sizes over 14 inch 00 are usually rotary rolled from 14 inch seamless shells which expand the diameter and reduce the wall thickness to the approximate dimensions required.
Small sizes of seamless pipe are generally obtained through the use of a stretch reduced mill. In this process the outside diameter and the wall thickness of the pipe is reduced through a series of rolls.
Seamless pipe goes through various finishing operations including straightening, inspection, testing, and end finishing. Seamless pipe is widely used in construction, oil refining, chemical and petro-chemical industries.
Advantages of seamless pipe
The main perceived advantage of seamless pipes is that they don’t have a weld seam. Traditionally, the seam of welded pipes has been viewed as a weak spot, vulnerable to failure and corrosion. For many years, this fear was probably justified. However, in recent years improvements in the manufacturing process for welded steel pipes and other welded pipes have boosted the strength and performance of the weld seam to levels indistinguishable from that of the rest of the pipe.
Seamless pipes provide peace of mind. Although there should be no issues with the seams of welded pipes supplied by reputable manufacturers, seamless pipes prevent any possibility of a weak seam.
Seamless pipes have better ovality, or roundness, than welded pipes.
Production Process
Packing
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