Profile pipes are an indispensable material in construction, mechanical engineering, and metal structures. Knowing the weight of 1 meter of pipe helps to properly plan the budget, load, and logistics. In this article, we will explain how to quickly calculate the mass of a profile pipe using formulas and an online calculator, as well as discuss key GOST parameters.
How to Calculate the Weight of a Profile Pipe
The weight per meter of a profile pipe depends on:
- Cross-sectional dimensions (e.g., 20×20, 40×40, 40×20×2);
- Wall thickness;
- Steel grade (according to GOST 8639-82, 8645-68).
Calculation Formula
Weight (kg) = (2×(A+B) – 4×S) × S × 0.00785
where: A and B are the sides of the section (mm), S is the wall thickness (mm).
For a 40×40×2 pipe:
(2×(40+40) – 4×2) × 2 × 0.00785 = 2.34 kg/m.
Table of Weight for Popular Profile Pipes
| Pipe Type | Dimensions (mm) | Weight per Meter (kg) |
|---|---|---|
| Square (GOST 8639-82) | 20×20×1.5 | 0.93 |
| Rectangular (GOST 8645-68) | 40×20×2 | 1.74 |
| Steel Square | 40×40×2 | 2.34 |
GOSTs and Standards for Profile Pipes
In Russia, production is regulated by:
- GOST 8639-82 — for square pipes;
- GOST 8645-68 — for rectangular pipes.
These documents define permissible dimensions, wall thickness, and steel grades. For example, a 20×20 profile pipe according to GOST 8639-82 is made of carbon or low-alloy steel.