Schedule 40 pipe is a pipe built according to special process guidelines, and its dimensions include but are not limited to the outer diameter (O.D.), inner diameter (I.D.), wall thickness and mass per foot of pipe. Together, these parameters affect the physical properties of pipes and their performance in practical applications.
Schedule 40 Pipe Dimensions-Thickness(SCH 40)
What Is a Pipe Schedule?
Pipe Specification (SCH) Measures the nominal wall thickness of the steel pipe. There are three main pipe sizes used by metal manufacturers in the past: standard, super strong and double super strong.
However, it is not helpful to have only the above three undefined dimensions. Therefore, there are currently 14 different specifications of steel pipes.
Among them, Schedule 40 is the most common. Schedule 40 carbon steel pipe is a kind of medium-sized pipe.
Schedule 40 Steel Pipe Dimensions-size/thickness/chart
Tuspipe is a major supplier and manufacturer of Sch 40 carbon pipe products. There are many levels of carbon and different chemical compositions. Pressure bearing capacity is measured and classified. Carbon steel pipe Schedule 40 is a medium pressure range pipe with a maximum diameter of 24 inches and a maximum wall thickness of 46 mm.
1 inch 2 = 645.2 mm 2 = 6.452 cm 2 = 6.452 x 10-4 m 2
1 foot (ft) = 0.3048 m
The ratio of diameter to wall thickness determines whether it is Pipe Sch 40 or other specifications, and also takes into account material strength. The schedule is determined by the outer diameter of the material, wall thickness, and bearing capacity.
The weight of Schedule 40 carbon steel pipes varies depending on the material of manufacture. The higher the carbon content in the steel, the lighter the pipe weight. But wall thickness matters as much as diameter. Given that Schedule 40 is classified as medium pressure, this means that the pipe has a medium Schedule 40 wall thickness and weight, and its weight is also in the medium range. ASTM A53 is the most commonly used grade for Schedule 40.
The following is the schedule 40 pipe dimensions chart, covering 1 schedule 40 pipe, 1 1/4 schedule 40 pipe, 1 1/2 schedule 40 pipe dimensions, schedule 40 pipe thickness/schedule 40 wall thickness/ sch 40 pipe thickness (in mm)/ etc. :
Nominal size [inches] | Outside diameter [inches] | Outside diameter [mm] | Wall thickness [inches] | Wall thickness [mm] | Weight [lb/ft] | Weight [kg/m] |
1/8 | 0.405 | 10.3 | 0.068 | 1.73 | 0.24 | 0.37 |
1/4 | 0.54 | 13.7 | 0.088 | 2.24 | 0.42 | 0.84 |
1/2 | 0.84 | 21.3 | 0.109 | 2.77 | 0.85 | 1.27 |
3/4 | 1.05 | 26.7 | 0.113 | 2.87 | 1.13 | 1.69 |
1 | 1.315 | 33.4 | 0.133 | 3.38 | 1.68 | 2.5 |
1.25 | 1.66 | 42.2 | 0.14 | 3.56 | 2.27 | 3.39 |
1.5 | 1.9 | 48.3 | 0.145 | 3.68 | 2.72 | 4.05 |
2 | 2.375 | 60.3 | 0.154 | 3.91 | 3.65 | 5.44 |
2.5 | 2.875 | 73 | 0.203 | 5.16 | 5.79 | 8.63 |
3 | 3.500 | 88.9 | 0.216 | 5.49 | 7.58 | 11.29 |
3.5 | 4.000 | 101.6 | 0.226 | 5.74 | 9.11 | 13.57 |
4 | 4.500 | 114.3 | 0.237 | 6.02 | 10.79 | 16.07 |
5 | 5.563 | 141.3 | 0.258 | 6.55 | 14.62 | 21.77 |
6 | 6.625 | 168.3 | 0.28 | 7.11 | 18.97 | 28.26 |
8 | 8.625 | 219.1 | 0.322 | 8.18 | 28.55 | 42.55 |
10 | 10.75 | 273 | 0.365 | 9.27 | 40.48 | 60.31 |
12 | 12.75 | 323.8 | 0.406 | 10.31 | 53.52 | 79.73 |
14 | 14 | 355.6 | 0.375 | 11.13 | 54.57 | 94.55 |
16 | 16 | 406.4 | 0.5 | 12.7 | 82.77 | 123.3 |
18 | 18 | 457 | 0.562 | 14.27 | 104.67 | 155.8 |
20 | 20 | 508 | 0.594 | 15.09 | 123.11 | 183.42 |
24 | 24 | 610 | 0.688 | 17.48 | 171.29 | 255.41 |
Schedule 40 Pipe Dimensions Selection and Application
Schedule 40 Pipe Dimensions Selection
It is helpful to consider the following factors in the selection of pipe size and improve the performance of the pipe system.
Working pressure: Different sizes of Schedule 40 pipe bearing capacity is different, consider this factor to avoid safety accidents.
Fluid properties: Fluids have different viscosities, densities and corrosivity. Understanding these characteristics ensures smooth flow of fluids and improved corrosion resistance in piping systems.
Environmental conditions: Fully understand the temperature, humidity and soil conditions of the pipeline to ensure that the pipeline system can operate stably in a variety of environments.
Application of Schedule 40 Pipe
Schedule 40 steel pipes are used in a wide range of industries.
Such as urban water supply, gas, heat and other systems in municipal engineering, Schedule 40 pipe is suitable for transporting various fluid media. In the industrial oil, gas, chemical, and pharmaceutical industries, Schedule 40 pipes are cost-effective for transporting a wide range of corrosive media and high-pressure gases. In the water supply, drainage, fire fighting, and other systems of civil buildings, it transmits clean water, sewage and fire fighting water.
Schedule 40 Pipe Dimensions Conclusion
In short, Schedule 40 pipe sizing parameters constitute a complex and critical system that, taken together, determines the function of the pipe and its practical application outcomes. In the process of selecting and operating Schedule 40 pipe, it is necessary to deeply understand all its size parameters, and make a wise choice and application after referring to the actual needs of the project.
FAQs:
1. What are the sizes of steel pipe SCH40 and 80?
Schedule 40 pipe dimensions cover NPS values, extending from 1/8 inch to 36 inch. Although the wall thickness of the sch 80 pipe varies, the nominal pipe sizes are consistent and include the same range of NPS values from 1/8 schedule 40 pipe dimensions to 36 inch.
2. How do I choose the right pipe schedule?
The core formula for determining pipeline progress is SCH=1000 (P/S). P stands for stress at work, S for stress. They are all expressed in pounds per square inch (psi), with SCH standing for the pipeline’s progress abbreviation.
