| Customization: | Available |
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| After-sales Service: | 24 Hours 7 Days |
| Warranty: | 10 Years |
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Seamless pipe is formed from a cylindrical bar of hot steel. The bar is heated to a high temperature and then a probe is inserted to create a hole through the cylinder. The cylinder is then transferred to rollers which size the cylinder to the specified diameter and wall thickness. A few mills can produce seamless pipe up to 24-in in diameter. Seamless manufacturing methods are used for small diameter pipe but have higher cost and limited availability, and as diameter increases welded pipes are more economical.
Seamless pipes are derived from solid steel that is in sheet or bar form and is formed into a solid round shape known as "billets" which are then heated and cast over a form such as a piercing rod to create a hollow tube or shell. These kinds of pipes are known for their ability to withstand pressure more efficiently in comparison to other methods of pipe manufacturing processes, as well as being fast and cost-effective. Seamless pipes are generally used in gas lines, as well as pipes that carry liquids. Because seamless pipes are able to withstand high pressures, they are also widely used in high-pressure applications including refineries, hydraulic cylinders, hydrocarbon industries, and in Oil and Gas infrastructure.
In comparison to other types of piping, seamless pipes do not require any welding or joints and are simply formed by solid round billets, which adds on to its strength and other characteristics including corrosion resistance. According to ASME, these pipes are also more effective in withstanding mechanical stress and have a higher operating pressure than welded pipes which are known as nonseamless pipes.
In general, the application of seamless pipes depends on the thickness of the pipe wall. Higher temperatures are required to produce pipes with thicker walls which reduces deformation resistance resulting in a larger deflection
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Product Name
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Seamless Steel Pipe
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Pipe Process Type
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Seamless: Hot rolled, cold drawn, cold rolled, etc.
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Standard
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DIN, BS, EN, ISO, GB, AISI, SAE, GOST, IS, KS, ANSI, AFNOR, UNI, CSA, AS/NZS.
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Specification and Grades
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Stainless Steel:
ASTM A312, ASTM A269, ASTM A358, ASTM A778, ASTM A790 304, 304L, 316, 316L, 310, 317L, 321, 347, 410, 904L |
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Shape
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Round, Square, Rectangular, Oval, Hexagonal, etc.
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Size Range
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OD: 6mm-2500mm
WT: 1mm-150mm Length: 6m 9m 12m OR others |
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Application Industry
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Oil and Gas, Construction, Water Supply and Treatment, Automotive, Power Generation, etc.
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Pipe Ends
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Plain End (PE), Beveled End (BE), Threaded End (TE), Grooved, Bell End, Tapered, Expanded.
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Tolerance
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As standards' Requirements
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Certification
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GB/T19001-2016/ISO9001:2015
GB/T24001-2016/ISO14001:2015 GB/T 45001-2020/ISO 45001:2018 |
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Processing Service
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Cutting, Bending, Threading, Welding, Grooving, Coating, Drilling, Galvanizing, Heat Treatment, Punching.
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MOQ
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1 Ton
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Packaging
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Bundled, Wooden Cases, Plastic Wrapping, Plastic Caps, Palletized, Shrink Wrapped, Plastic Bagged, Steel Crates, Loose, Boxed.
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Delivery Term
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EXW, FOB, FCA, etc.
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Delivery Time
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3-5 days for the regular models, and 7 to 10 working days for the special sizes and processing
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Payment Term
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T/T, L/C, D/P, etc.
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Customization
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Customization Available
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