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ERW Steel Pipe for urban dredging
Straight seam steel pipes for urban dredging are special steel pipes used in dredging projects in urban rivers, ports, waterways and other waters. They are mainly used to transport sediment, mud and other mixed debris.
Straight seam steel pipes for urban dredging are special steel pipes used in dredging projects in urban rivers, ports, waterways and other waters. They are mainly used to transport sediment, mud and other mixed debris.
Here is some key information about straight seam steel pipe for urban dredging:
Manufacturing process: Straight seam steel pipes for urban dredging are usually produced using submerged arc welding technology, which can ensure the uniformity and density of the weld.
Application fields: Widely used in dredging of beaches, rivers, and waterways, urban environmental protection projects, and the construction and landfilling of various underwater pipeline trenches.
Technical features: Straight seam steel pipes have good toughness and plasticity, large pipe diameter, thick pipe walls, high pressure resistance, low temperature resistance, and corrosion resistance. They are suitable for transporting mud containing solid particles in dredging projects.
Equipment matching: Dredging straight seam steel pipes are often used with mechanical equipment such as dredgers. There are two types of dredgers: mechanical and hydraulic. Among them, hydraulic dredgers flush the mud with high-pressure water or use reamers and rake heads to cut mud. , and then use a mud pump to suck the mud through the dredging steel pipe.
Standards: The production of straight seam steel pipes should comply with relevant national standards, such as GB/T 13793-2016 "Straight seam electric welded steel pipes".
Market demand: With the acceleration of urbanization and the improvement of environmental protection requirements, the demand for straight seam steel pipes in urban dredging projects continues to grow.
Economical: Dredging straight seam steel pipes are widely used in urban dredging projects because of their affordable price.
Quality requirements: Dredged steel pipes need to meet certain quality standards, including the mechanical properties of the pipe, dimensional accuracy and weld quality.
To sum up, straight seam steel pipes for urban dredging play an important role in urban dredging projects because of their good comprehensive performance and economy.
| DIAMETER | PACKAGING | BS1387 | ASTM A53 | ||||||||||
| INCH | DN | MM | LARGE | SMALL | O.D | W,T (MM) | W.T (MM)实做 | O.D | W.T (MM) | ||||
| THEORETICALLY | ACTUALLY | PCS | MM | A | ACTUALLY | B | ACTUALLY | MM | SCH40 | ACTUALLY | |||
| 1/2” | 15 | 20 | 21.3 | 217 | 169 | 21.3 | 2.00 | 1.80 | 2.60 | 2.50 | 21.3 | 2.77 | 2.50 |
| 3/4” | 20 | 25 | 26.9 | 169 | 127 | 26.9 | 2.30 | 2.20 | 2.60 | 2.50 | 26.7 | 2.87 | 2.75 |
| 1” | 25 | 32 | 33.4 | 127 | 91 | 33.7 | 2.60 | 2.50 | 3.20 | 3.00 | 33.4 | 3.38 | 3.00 |
| 11/4” | 32 | 40 | 42.4 | 91 | 61 | 42.4 | 2.60 | 2.50 | 3.20 | 3.00 | 42.2 | 3.56 | 3.25 |
| 11/2” | 40 | 47 | 48.3 | 91 | 61 | 48.3 | 2.90 | 2.75 | 3.20 | 3.00 | 48.3 | 3.68 | 3.25 |
| 2” | 50 | 58 | 60.3 | 61 | 37 | 60.3 | 2.90 | 2.75 | 3.60 | 3.50 | 60.3 | 3.91 | 3.50 |
| 2 1/2” | 65 | 73 | 76.1 | 37 | 19 | 76.1 | 3.20 | 3.00 | 3.60 | 3.50 | 73 | 5.16 | 4.75 |
| 3” | 80 | 87 | 88.9 | 37 | 19 | 88.9 | 3.20 | 3.00 | 4.00 | 3.75 | 88.9 | 5.49 | 5.00 |
| 4” | 100 | 113 | 114.3 | 19 | 19 | 114.3 | 3.60 | 3.50 | 4.50 | 4.25 | 114.3 | 6.02 | 5.50 |
| 5” | 125 | 140 | 19 | 10 | 139.7 | - | - | 5.00 | 4.75 | 141.3 | 6.55 | 6.00 | |
| 6” | 150 | 165 | 19 | 7 | 165 | - | - | 5.00 | 4.75 | 168.3 | 7.11 | 6.50 | |
| 8” | 200 | 219 | 7 | 5 | 219.1 | - | - | - | - | 219.3 | 8.18 | 7.50 | |
| 10” | 250 | 273 | 5 | 3 | 273 | - | - | - | - | 273 | 9.27 | 8.50 | |
| 12” | 300 | 325 | 3 | 3 | 325 | - | - | - | - | 323.9 | 10.31 | 9.50 | |
