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Ms Steel ERW Carbon ASTM A53 Black Iron Pipe Welded Sch40 Steel Pipe For Building Material
| Commodity | ERW steel pipe |
| Outer Diamater | 1/2"-24"(20mm-610mm) |
| Wall Thickness | 1.5mm-25.4mm |
| Length | 1-12m or as your requirement,Ready to ship pipes are 6m long |
| Steel Material | Q195 Q235 Q345 St37 St52 A53 |
| Standard | ASTM A53 ASTM A500; GB/T3091 GB/T3094;DIN EN10025; DIN EN10217-2005; BS EN10217; BS EN10219; BS EN10025; JIS G3466 |
| Type | Welded pipe |
| Pipe ends | 1)Plain 2)Beveled 3)Threaded with coupling and plastic cap |
| End protector | 1) Plastic cap 2) Iron protector 3) as request |
| Surface Treatment | 1) Bared 2) Black Painted 3) Galvanized 4) Oiled |
| Deep processing | oiled, painted, galvanized, powder coating, shrink head, pressure groove, welding head, punching, threaded with coupling and plastic cap |
| Inspection | With Hydraulic Testing, Eddy Current, Infrared Test |
| Application | Construction,machine structure pipe, Agriculture equipment pipe,Water and gas pipe, Greenhouse pipe, Scaffolding pipe, Building material tube, Furniture tube, Low pressure fluid tube, Oil pipe, etc. |
| Shipment |
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Welded pipe is the abbreviation of welded steel pipe, refers to the steel plate crimped into a round pipe or square pipe, after welding formed steel pipe. Widely used in water conservancy projects, municipal drainage, tap water transportation and so on.
In practical production and application, welded pipe is usually divided into two kinds according to welding mode: straight seam welded pipe and spiral welded pipe.
Straight welded pipe: usually for the nominal diameter of DN15 (4 branch) -DN150 (6 inch pipe) small and medium caliber specifications of welded pipe. The straight seam welding process is simpler than the spiral welding process, with low welding cost and high efficiency. The disadvantage is that the weld is in the same straight line and the compressive strength is low. Therefore, the straight seam welding is only suitable for the production of small and medium caliber welded pipes.
Spiral welded pipe: usually for the nominal diameter of DN200 (8 inch pipe) -DN600 (24 inch pipe) of large diameter specifications of welded pipe. Spiral welding process can use the same width of steel plate in the production of different diameter welded pipe, the disadvantage is that technology is complex, of the same length than straight seam welded pipe spiral weld much longer, causing the production cost is high, the production efficiency is low, so the spiral welding used in the production of large diameter welded pipe, spiral weld has higher compressive strength at the same time, ensure the compressive capacity of large diameter welded pipe.
The measurement method of welded pipe is generally weighing and counting two kinds, weighing is actually weighed by the scale, counting is in accordance with the theoretical formula to calculate the weight, the formula is: "meter weight (kg) = (outer diameter mm- wall thickness mm) * wall thickness mm*0.02466".
