What is a tube?
A steel structure with a hollow section, the length of which is significantly greater than its diameter or circumference, is called a pipe.
Tube types
Steel pipes can be classified into different categories based on section shape, material, purpose and production process.
In terms of section shape, steel tubes can be round, square, rectangular or special shaped. According to the material, they can be divided into carbon structural steel pipes, low-alloy structural steel pipes, alloy steel pipes and composite steel pipes.
The purpose of steel pipes can determine their classification, for example, steel pipes for transmission pipelines, engineering structures, thermal equipment, petrochemical industry, machine manufacturing, geological drilling and high pressure equipment.
In terms of the production process, steel tubes can be seamless or welded. Seamless steel tubes can be further divided into hot-rolled and cold-rolled (drawn) types. Welded steel pipes can be straight seam welded steel pipes or spiral seam welded steel pipes.
Steel pipes have a wide range of applications such as transporting fluids and powdery solids, exchanging thermal energy, manufacturing mechanical parts and containers and being an economical steel.
The use of steel tubes in grids, struts and mechanical supports of building structures can reduce weight, save 20 to 40% of metal and allow for industrialized and mechanized construction. The use of steel tubes in the manufacture of highway bridges can save steel, simplify construction, reduce the protective coating area, and lower investment and maintenance costs.
How to calculate the pipe weight?
The tube weight calculation formula is:
W (kg/M) = 0.02466 * wall thickness * (outer diameter – wall thickness)
Pipe Weight Calculator
In accordance with the standards GB/T 21835-2008 and GB/T 17395-2008 for dimensions and weight per unit length of welded steel pipes, the theoretical weight calculation method for circular steel pipes such as welded pipes and tubes seamless, it's the same.
In the market, steel pipes can be delivered based on theoretical weight or actual weight. When steel pipes are delivered based on theoretical weight, the density of common and precision steel pipes is 7.85g/ cm3 , and the density of other types of steel is specified in the relevant standards.
You can use a steel pipe weight calculator to determine the weight of various steel pipes.
Related Tool: Steel Weight Calculator
Pipe Weight Chart
| Tubes | No. | Nominal diameter | OF | Thickness | Weight |
| JDG tube | 1 | 16 | 15.7 | 1.2 | 0.43 |
| two | 20 | 19.7 | 1.2 | 0.55 | |
| 3 | 25 | 24.7 | 1.2 | 0.70 | |
| 4 | 32 | 31.6 | 1.2 | 0.90 | |
| 5 | 40 | 39.6 | 1.2 | 1.14 | |
| 6 | 50 | 49.6 | 1.2 | 1.43 | |
| 7 | 16 | 15.7 | 1.6 | 0.56 | |
| 8 | 20 | 19.7 | 1.6 | 0.71 | |
| 9 | 25 | 24.7 | 1.6 | 0.91 | |
| 10 | 32 | 31.6 | 1.6 | 1.18 | |
| 11 | 40 | 39.6 | 1.6 | 1.50 | |
| 12 | 50 | 49.6 | 1.6 | 1.89 | |
| KBG Tube | 1 | 16 | 15.7 | 1.2 | 0.43 |
| two | 20 | 19.7 | 1.2 | 0.55 | |
| 3 | 25 | 24.7 | 1.2 | 0.70 | |
| 4 | 32 | 31.6 | 1.2 | 0.90 | |
| TC Conduit | 1 | 16 | 15.87 | 1.6 | 0.56 |
| two | 20 | 19.05 | 1.6 | 0.69 | |
| 3 | 25 | 25.4 | 1.6 | 0.94 | |
| 4 | 32 | 31.75 | 1.6 | 1.19 | |
| 5 | 40 | 38.1 | 1.6 | 1.44 | |
| 6 | 50 | 50.8 | 1.6 | 1.94 | |
| Welded Steel Pipe | 1 | 16 | 8:75 p.m. | 2.5 | 1.13 |
| two | 20 | 26:25 | 2.5 | 1.46 | |
| 3 | 25 | 32 | 2.5 | 1.82 | |
| 4 | 32 | 40.75 | 2.5 | 2.36 | |
| 5 | 40 | 46 | 2.5 | 2.68 | |
| 6 | 50 | 58 | 2.5 | 3.42 | |
| 7 | 70 | 74 | 3 | 5.25 | |
| 8 | 80 | 86.5 | 3 | 6.18 | |
| 9 | 100 | 112 | 3 | 8.06 | |
| Steel Pipe for Water Gas | 1 | 16 | 9:25 p.m. | 2.75 | 1.25 |
| two | 20 | 26.75 | 2.75 | 1.63 | |
| 3 | 25 | 33.5 | 3.25 | 2.42 | |
| 4 | 32 | 42.25 | 3.25 | 3.13 | |
| 5 | 40 | 48 | 3.5 | 3.84 | |
| 6 | 50 | 60 | 3.5 | 4.88 | |
| 7 | 70 | 75.5 | 3.75 | 6.64 | |
| 8 | 80 | 88.5 | 4 | 8.34 | |
| 9 | 100 | 114 | 4 | 10.85 | |
| 10 | 125 | 140 | 4.5 | 15.04 | |
| 11 | 150 | 165 | 4.5 | 17.81 | |
| Galvanized Steel Pipe | 1 | 15 | 2.75 | 1.33 | |
| two | 20 | 2.75 | 1.73 | ||
| 3 | 25 | 3.25 | 2.57 | ||
| 4 | 32 | 3.25 | 3.32 | ||
| 5 | 40 | 3.50 | 4.07 | ||
| 6 | 50 | 3.50 | 5.17 | ||
| 7 | 70 | 3.75 | 7.04 | ||
| 8 | 80 | 4:00 | 8.84 | ||
| 9 | 100 | 4:00 | 11:50 am | ||
| 10 | 125 | 4.50 | 16.85 | ||
| 11 | 150 | 4.50 | 10:29 p.m. | ||
| Galvanized round steel | 1 | 6 | 0.222 | ||
| two | 8 | 0.395 | |||
| 3 | 10 | 0.617 | |||
| 4 | 12 | 0.888 | |||
| Galvanized flat steel | 1 | 40*4 | 1.26 | ||
| 1 | 25*4 | 0.79 | |||
- Download the Pipe Weight Table PDF file
