| Customization: | Available |
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| After-sales Service: | 24 Hours 7 Days |
| Warranty: | 10 Years |
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Welded pipes are metal products that start as a strip that would be roll-formed and then welded to form a tube.
The concept of spiral-welded pipe fabrication is the twisting of a metal strip into a spiral shape, followed by welding where the edges join one another to form a seam. This fabrication method starts from a steel coil. The flat and uncoiled steel sheet, after edge trimming for welding preparation, passes through a triplet of rollers positioned in a "pyramid" configuration, and oriented at an appropriate angle with respect to the de-coiling direction. In such a way, the steel coil is bent into a spiral shape. There are two welding stations just after passing through the pyramid rollers, one internal and one external, which perform pipe welding with the submerged arc welding method. In SAW, the metal is joined by fusing with an electric arc that develops between a metal electrode and the edge of the pipe. A layer of granular, fusible material covers the weld area and protects the arc and the molten metal. Internal welding is performed first, followed by external welding.
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Product Name
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weleded steel pipe
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Material
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10#, 20#, 45#, 16Mn, A53(A,B), Q235, Q345, Q195, Q215, St37, St42, St37-2, St35.4, St52.4, ST35
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Wall Thickness
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1MM~12MM
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Outer Diameter
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20MM~508MM
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Length |
Length:Single random length/Double random length 5m-14m,5.8m,6m,10m-12m,12m or as customer's actual reques |
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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 |
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Grade |
10#-45#, 16Mn, A53-A369, Q195-Q345, ST35-ST52 Grade A, Grade B, Grade C etc. |
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Technique
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Hot-rolled cold-rolled galvanizing
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Packing
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Bundle, or with all kinds of colors PVC or as your requirements
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Pipe Ends
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Plain end/Beveled,protected by plastic caps on both ends, cut quare,grooved,threaded and coupling,etc.
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Surface Treatment
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1. Galvanized 2. PVC,Black and color painting 3. Transparent oil,anti-rust oil 4. According to clients requirement |
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Product Application
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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 |
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Origin
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China
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