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.

Calculator for Weight of Profile Pipe