Products Description
Hot Dipped Galvanized steel circular pipe is first to acid wash the steel pipe, remove the iron oxide on the surface of the steel pipe, and then through the ammonium chloride and zinc chloride mixed aqueous solution cleaning, and then into the hot dip plating tank.
It can also be a hollow cross-section steel pipe made by cold bending of hot-rolled or cold-rolled galvanized steel strip and then high frequency welding. The production process of the pipe is simple, the production efficiency is high, the variety specifications are many and the equipment is less, but the strength is generally lower than that of the seamless steel pipe.
Standard and grade
| BS1378:1985 Light(Hot-dip Galvanized Pipe) | ||||||||||
| Nominal Diameter | Outside Diameter | Wall Thickness | Theoretical Weight(6M/pc) | |||||||
| Max. | Min. | Max. | Min. | Plain End | Screwed and Socketed | |||||
| inch | mm | inch | inch | mm | mm | inch | mm | kg/m | kg/pc | kg/pc |
| 1/2 | 15 | 0.843 | 0.827 | 21.4 | 21.0 | 0.080 | 2.0 | 0.947 | 5.682 | 5.691 |
| 3/4 | 20 | 1.059 | 1.039 | 26.9 | 26.4 | 0.091 | 2.3 | 1.38 | 8.28 | 8.29 |
| 1 | 25 | 1.331 | 1.307 | 33.8 | 33.2 | 0.102 | 2.6 | 1.98 | 11.88 | 11.90 |
| 1¼ | 32 | 1.673 | 1.650 | 42.5 | 41.9 | 0.102 | 2.6 | 2.54 | 15.24 | 15.27 |
| 1½ | 40 | 1.906 | 1.882 | 48.4 | 47.8 | 0.114 | 2.9 | 3.23 | 19.38 | 19.42 |
| 2 | 50 | 2.370 | 2.346 | 60.2 | 59.6 | 0.114 | 2.9 | 4.08 | 24.48 | 24.55 |
| 2½ | 65 | 2.992 | 2.961 | 76.0 | 75.2 | 0.126 | 3.2 | 5.71 | 34.26 | 34.38 |
| 3 | 80 | 3.492 | 3.461 | 88.7 | 87.9 | 0.126 | 3.2 | 6.72 | 40.32 | 40.49 |
| 4 | 100 | 4.484 | 4.449 | 113.9 | 113.0 | 0.142 | 3.6 | 9.75 | 58.50 | 58.75 |
| BS1378:1985 Medium (Hot-dip Galvanized steel circular pipe) | ||||||||||
| Nominal Diameter | Outside Diameter | Wall Thickness | Theoretical Weight(6M/pc) | |||||||
| Max. | Min. | Max. | Min. | Plain End | Screwed and Socketed | |||||
| inch | mm | inch | inch | mm | mm | inch | mm | kg/m | kg/pc | kg/pc |
| 1/2 | 15 | 0.854 | 0.531 | 21.7 | 21.1 | 0.104 | 2.6 | 1.21 | 7.26 | 7.27 |
| 3/4 | 20 | 1.071 | 1.047 | 27.2 | 26.6 | 0.104 | 2.6 | 1.56 | 9.36 | 9.37 |
| 1 | 25 | 1.347 | 1.315 | 34.2 | 33.4 | 0.128 | 3.2 | 2.41 | 14.46 | 14.48 |
| 1¼ | 32 | 1.689 | 1.658 | 42.9 | 42.1 | 0.128 | 3.2 | 3.10 | 18.60 | 18.63 |
| 1½ | 40 | 1.921 | 1.890 | 48.8 | 48.0 | 0.128 | 3.2 | 3.57 | 21.42 | 21.46 |
| 2 | 50 | 2.349 | 2.354 | 60.8 | 59.8 | 0.144 | 3.6 | 5.03 | 30.18 | 30.25 |
| 2½ | 65 | 3.016 | 2.969 | 76.6 | 75.4 | 0.144 | 3.6 | 6.43 | 38.58 | 38.7 |
| 3 | 80 | 3.524 | 3.469 | 89.5 | 88.1 | 0.160 | 4.0 | 8.37 | 50.22 | 50.39 |
| 4 | 100 | 4.524 | 4.461 | 114.9 | 113.3 | 0.175 | 4.0 | 12.20 | 73.20 | 73.5 |
| 5 | 125 | 5.535 | 5.461 | 140.6 | 138.7 | 0.197 | 5.0 | 16.60 | 99.60 | 100.1 |
| 6 | 150 | 6.539 | 6.461 | 166.1 | 164.1 | 0.197 | 5.0 | 19.70 | 118.20 | 118.8 |
| BS1378:1985 Heavy(Hot-dip Galvanized steel circular pipe) | ||||||||||
| Nominal Diameter | Outside Diameter | Wall Thickness | Theoretical Weight(6M/pc) | |||||||
| Max. | Min. | Max. | Min. | Plain End | Screwed and Socketed | |||||
| inch | mm | inch | inch | mm | mm | inch | mm | kg/m | kg/pc | kg/pc |
| 1/2 | 15 | 0.854 | 0.531 | 21.7 | 21.1 | 0.128 | 3.2 | 1.44 | 8.64 | 8.70 |
| 3/4 | 20 | 1.071 | 1.047 | 27.2 | 26.6 | 0.128 | 3.2 | 1.87 | 11.22 | 11.28 |
| 1 | 25 | 1.347 | 1.315 | 34.2 | 33.4 | 0.160 | 4.0 | 2.94 | 17.64 | 17.76 |
| 1¼ | 32 | 1.689 | 1.658 | 42.9 | 42.1 | 0.160 | 4.0 | 3.80 | 22.80 | 22.98 |
| 1½ | 40 | 1.921 | 1.890 | 48.8 | 48.0 | 0.160 | 4.0 | 4.38 | 36.28 | 26.52 |
| 2 | 50 | 2.349 | 2.354 | 60.8 | 59.8 | 0.175 | 4.5 | 5.19 | 31.14 | 31.56 |
| 2½ | 65 | 3.016 | 2.969 | 76.6 | 75.4 | 0.175 | 4.5 | 7.93 | 47.58 | 48.30 |
| 3 | 80 | 3.524 | 3.469 | 89.5 | 88.1 | 0.197 | 5.0 | 10.30 | 61.80 | 63.00 |
| 4 | 100 | 4.524 | 4.461 | 114.9 | 113.3 | 0.213 | 5.4 | 14.50 | 87.00 | 89.40 |
| 5 | 125 | 5.535 | 5.461 | 140.6 | 138.7 | 0.213 | 5.4 | 17.90 | 107.40 | 110.40 |
| 6 | 150 | 6.539 | 6.461 | 166.1 | 164.1 | 0.213 | 5.4 | 21.30 | 127.80 | 137.40 |
application
Hot dipped galvanized steel circular pipe are widely used in various fields such as construction, industry, agriculture, municipal engineering, and power communication, and are highly favored for their corrosion resistance, high strength, and cost-effectiveness.
1. Construction field
Structural support: used for building frames, scaffolding, etc.
Pipeline system: used for water supply, drainage, HVAC, etc.
2. Industrial sector
Transport pipeline: used for transporting water, oil, gas, etc.
Mechanical equipment: used for manufacturing mechanical components and structural parts.
3. Agricultural field
Irrigation system: used for irrigating farmland.
Greenhouse structure: used to build a greenhouse.
4. Municipal engineering
Road guardrail: used for road isolation and protection.
Street lamp pole: used for supporting street lamps.
5. Power communication
Cable protection: used to protect cables and communication lines.
Wire conduit: used for laying wires and cables.
6. Other uses
Furniture manufacturing: used for making furniture frames.
Sports equipment: used for manufacturing basketball hoops, soccer doors, etc.
Advantage
Corrosion resistance: The galvanized layer extends the service life.
High strength: suitable for load-bearing and support.
Low cost: High cost-effectiveness, low maintenance costs.
Principle
Hot-dip galvanized steel circular pipe has the advantages of uniform coating, strong adhesion and long service life. Mainly used in curtain wall, construction, machinery manufacturing, steel structure engineering, shipbuilding, solar support, steel structure engineering.
Hot-Dip Galvanized steel circular pipe BS1387:1985 LIGHT can be used for curtain wall, construction, machinery manufacturing, steel construction project, ship building, so on.
Solar power bracket, steel structure engineering, power engineering, power plant, agriculture and chemical machinery, glass curtain wall, car chassis, airport and so on.
DN15-DN300 hot-dip galvanized steel circular pipe; Hot dip galvanizing of steel circular pipe and square pipe, with diameter of 219-1420mm spiral welded pipe Use: for water, sewage, gas, fire, air, oil, heating steam and other low pressure fluid transportation and mechanical structure. As a transportation pipeline or metal structure, hot-dip galvanized steel pipe is widely used in fire engineering, natural gas transmission, oil processing industry, water conservancy engineering construction and residential construction.
Tianjin Huirun
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Export History |
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Country |
Products |
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Myanmar |
Pre-galvanized square and rectangular hollow section |
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Guatemala |
Pre-galvanized round steel pipes for greenhouse |
|
Guinea-Bissau |
Pre-galvanized round steel pipes and square and rectangular hollow section |
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Vietnam |
Hot dipped galvanized steel pipes |
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Sri Lanka |
Scaffolding steel pipes |
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Peru |
Galvanized steel coils |
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Burkina Faso |
Square steel pipes, angle bars, bright-annealed steel pipes |
|
Bolivia |
Hot dipped galvanized steel pipes |
|
Brazil |
Galvanized steel conduit pipes |
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Hongkong |
Steel planks |
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