A MS square pipe is a type of hollow structural section characterized by its square shape and hollow interior. The square shape of the hollow section provides excellent load-bearing capabilities, making it a preferred choice in structural designs. It offers high torsional stability, essential for resisting bending and twisting forces. The section's hollow interior allows for efficient materials utilization, reducing weight without compromising strength. This makes **MS Square tube** particularly suitable for weight reduction applications, such as in the aerospace or automotive industries. To enhance the mechanical properties, **MS Box pipe** can undergo additional treatments such as galvanization or coating to improve corrosion resistance. This ensures the longevity and durability of the section, especially in outdoor or corrosive environments.

To calculate the weight of a **MS square pipe**, first you need to know the dimensions and the material from which it is made Now you can determine weight by the following steps:-

Measuring the dimensions of the square pipe:

**Side length (a)**: Measure the length of one side of the square cross-section.

**Wall thickness (t)**: Measure the thickness of the pipe's walls.

Now determine the material of the square pipe from which it is made because different materials have different densities and it affects the weight.

Find the density of the material: Look up the density of the material in kilograms per cubic meter (kg/m³).

Common pipe materials include Mild Steel, Aluminium, and various types of material, each have its own density value.

Formula to calculate the weight (mass) of the MS square pipe:

The formula to calculate the weight (mass) of the square pipe is:

**Weight (W) = Volume (V) x Density (ρ)**

The volume of a square pipe is calculated as follows:

**V = a² - (a - 2t)²**

Where:

**a** is the side length of the square pipe.

**t** is the wall thickness of the pipe.

**ρ** is the density of the material.

Convert the weight to the desired unit: By default, the weight is in kilograms. You can convert it to other units (e.g., pounds) if needed.

Here's an example calculation using steel as the material with a density of approximately 7850 kg/m³:

Let's assume the square pipe has the following dimensions:

Side length (a) = 50 mm (0.05 meters)

Wall thickness (t) = 5 mm (0.005 meters)

**Step 1**: Calculate the volume of the square pipe

V = a² - (a - 2t)²

V = (0.05)² - (0.05 - 2 * 0.005)²

V = 0.05² - (0.05 - 0.01)²

V = 0.0025 - 0.0396

V = 0.0361 m³

**Step 2**: Look up the density of steel (ρ) = 7850 kg/m³

**Step 3**: Calculate the weight (mass) of the square pipe

**W = V x ρ**

W = 0.0361 m³ * 7850 kg/m³

W = **283.585 kg**

So, the weight of the square pipe is approximately 283.585 kilograms (kg).

Note:- Actual weight of the square pipe may vary depending on manufacturing process and tolerance.

#### You can also refer Square pipe, Sq Box, Sq Tube Weight Chart, Dimension and Size in the following Table:

Size mm |
kg/m |
Size mm |
kg/m |

20 x 20 x 2.0 | 1.12 | 20 x 20 x 2.5 | 1.35 |

25 x 25 x 1.5 | 1.06 | 25 x 25 x 2.0 | 1.43 |

25 X 25 X 2.5 | 1.74 | 25 X 25 X 3.0 | 2.04 |

30 X 30 X 2.0 | 1.68 | 30 X 30 X 2.5 | 2.14 |

30 X 30 X 3.0 | 2.51 | 40 x 40 x 1.5 | 1.81 |

40 x 40 x 2.0 | 2.31 | 40 x 40 x 2.5 | 2.92 |

40 x 40 x 3.0 | 3.45 | 40 x 40 x 4.0 | 4.46 |

40 x 40 x 5.0 | 5.40 | 50 x 50 x 1.5 | 2.28 |

50 x 50 x 2.0 | 2.93 | 50 x 50 x 2.5 | 3.71 |

50 x 50 x 3.0 | 4.39 | 50 x 50 x 4.0 | 5.72 |

50 x 50 x 5.0 | 6.97 | 60 x 60 x 3.0 | 5.34 |

60 x 60 x 4.0 | 6.97 | 60 x 60 x 5.0 | 8.54 |

60 x 60 x 6.0 | 9.45 | 70 x 70 x 3.0 | 6.28 |

70 x 70 x 3.6 | 7.46 | 70 x 70 x 5.0 | 10.11 |

70 x 70 x 6.3 | 12.50 | 70 x 70 x 8 | 15.30 |

75 x 75 x 3.0 | 7.07 | 80 x 80 x 3.0 | 7.22 |

80 x 80 x 3.6 | 8.59 | 80 x 80 x 5.0 | 11.70 |

80 x 80 x 6.0 | 13.90 | 90 x 90 x 3.0 | 8.01 |

90 x 90 x 3.6 | 9.72 | 90 x 90 x 5.0 | 13.30 |

90 x 90 x 6.0 | 15.76 | 90 x 90 x 8.0 | 20.40 |

100 x 100 x 3.0 | 8.96 | 100 x 100 x 4.0 | 12.00 |

100 x 100 x 5.0 | 14.80 | 100 x 100 x 5.0 | 14.80 |

100 x 100 x 6.0 | 16.19 | 100 x 100 x 8.0 | 22.90 |

100 x 100 x 10 | 27.90 | 120 x 120 x 5 | 18.00 |

120 x 120 x 6.0 | 21.30 | 120 X 120 X 6.3 | 22.30 |

120 x 120 x 8.0 | 27.90 | 120 x 120 x 10 | 34.20 |

120 X 120 X 12 | 35.8 | 120 X 120 X 12.5 | 41.60 |

140 X 140 X 5.0 | 21.10 | 140 X 140 X 6.3 | 26.30 |

140 X 140 X 8 | 32.90 | 140 X 140 X 10 | 40.40 |

140 X 140 X 12.5 | 49.50 | 150 X 150 X 5.0 | 22.70 |

150 X 150 X 6.3 | 28.30 | 150 X 150 X 8.0 | 35.40 |

150 X 150 X 10 | 43.60 | 150 X 150 X 12.5 | 53.40 |

150 X 150 X 16 | 66.40 | 150 X 150 X 16 | 66.40 |

180 X 180 X 5 | 27.40 | 180 X 180 X 6.3 | 34.20 |

180 X 180 X 8 | 43.00 | 180 X 180 X 10 | 53.00 |

180 X 180 X 12.5 | 65.20 | 180 X 180 X 16 | 81.40 |

200 X 200 X 5 | 30.50 | 200 X 200 X 6 | 35.8 |

200 x 200 x 6.3 | 38.2 | 200 x 200 x 8 | 48.00 |

200 x 200 x 10 | 59.30 | 200 x 200 x 12.5 | 73.00 |

200 x 200 x 16 | 91.50 | 250 x 250 x 6.3 | 48.10 |

250 x 250 x 8 | 60.50 | 250 x 250 x 10 | 75.00 |

250 x 250 x 12.5 | 92.60 | 250 x 250 x 16 | 117.00 |

300 x 300 x 6.3 | 57.90 | 300 x 300 x 8 | 73.10 |

300 x 300 x 10 | 57.90 | 300 x 300 x 8 | 90.70 |

300 x 300 x 12.5 | 112.00 | 300 x 300 x 16 | 142.00 |

350 x 350 x 8 | 85.70 | 350 x 350 x 10 | 106.00 |

350 x 350 x 12.5 | 132.00 | 350 x 350 x 16 | 167.00 |

400 x 400 x 10 | 122.00 | 400 x 400 x 12 | 141.00 |

400 x 400 x 12.5mm | 152.00 | 400 x 400 x 16 | 192 |