| 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
| Product Name | Seamless Steel Pipe |
| Material | 10#, 20#, 45#, 16Mn, A53(A,B), Q235, Q345, Q195, Q215, St37, St42, St37-2, St35.4, St52.4, ST35 |
| Wall Thickness | 1MM~12MM |
| Outer Diameter | 20MM~508MM |
| Length |
Length:Single random length/Double random length 5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques |
Standard |
API 5L, ASTM A53-2007, ASTM A671-2006, ASTM A252-1998, ASTM A450-1996, ASME B36.10M-2004, ASTM A523-1996, BS 1387, BS EN10296, BS 6323, BS 6363, BS EN10219, GB/T 3091-2001, GB/T 13793-1992, GB/T9711 |
| Grade | 10#-45#, 16Mn, A53-A369, Q195-Q345, ST35-ST52 Grade A, Grade B, Grade C |
| Technique | Hot Dip Galvanized Round Steel Pipe |
| Packing | Bundle, or with all kinds of colors PVC or as your requirements |
| Pipe Ends | Plain end/Beveled,protected by plastic caps on both ends, grooved,threaded and coupling,etc. |
| Surface Treatment |
1. Black 2. PVC 3. Transparent oil,anti-rust oil 4. According to clients requirement |
| Product Application | 1. Fence, greenhouse, door pipe,greenhouse 2. Low pressure liquid, water, gas, oil, line pipe 3. For both indoor and outdoor the building construction 4. Widely used in scaffolding construction which is much cheaper and convenient |
| Certificates | API 5L, API 5CT, ISO9001-2008,SGS.BV |
| Delivery Time | Usually within 10-45 days upon receipt of the advance payment |
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