The complete theoretical weight table of round tubes is shown in the figure:

The weight formula of round tubes: ρ*l*π*(D^2-d^2)/4

For the formula, ρ is the density of the circular tube, l is the length of the circular tube, D is the outer diameter of the circular tube, and d is the inner diameter of the circular tube.

First calculate the volume of the circular tube. After measuring the inner and outer diameters of the circular tube and the length of the circular tube, the volume of the circular tube is: l*π*(D^2-d^2)/4

Then the weight of the round tube is obtained according to the material density: ρ*l*π*(D^2-d^2)/4

Extended information:

Various circles Theoretical weight calculation formula of pipes and steel theoretical weight calculation formulas

1. Angle steel: weight per meter = 0.00785 × (side width - side thickness) × side thickness

2. Pipes : Weight per meter = 0.02466 × wall thickness × (outer diameter - wall thickness)

4. Square steel: weight per m = 0.00786 × side width × side width

5. Hexagonal Steel: Weight per m = 0.0068×diameter across opposite sides×diameter across opposite sides

6. Octagonal steel: weight per m=0.0065×diameter×diameter

7. Equilateral angle steel: per m weight = side width × side thickness × 0.015

8. Flat steel: weight per m = 0.00785 × thickness × width

9. Seamless steel pipe: weight per m = 0.02466× Wall thickness × (outer diameter - wall thickness)

10. Electrically welded steel: weight per m = seamless steel pipe

11. Steel plate: weight per m2 = 7.85 × thickness

12. Brass tube: weight per meter = 0.02670 × wall thickness × (outer diameter - wall thickness)

13. Copper tube: weight per meter = 0.02796 × wall thickness × (outer diameter diameter - wall thickness)

14. Aluminum pattern plate: weight per square meter = 2.96 × thickness

15. Density of non-ferrous metals: copper plate 8.9 brass plate 8.5 zinc plate 7.2 lead Plate 11.37

16. The calculation formula for non-ferrous metal plates is: weight per square meter = density × thickness

17. Square tube: weight per meter = (side length) × 2×thickness×0.00785

18. Unequal angle steel: weight per meter = 0.00785×side thickness (long side width, short side width-side thickness)

19. I-shaped Steel: Weight per meter = 0.00785 × waist thickness [height f (leg width - waist thickness)]

20. Channel steel: weight per meter = 0.00785 × waist thickness [height e (leg width - waist thickness) )]

Reference: Baidu Encyclopedia-Round Pipe