MS (Mild Steel) Square Tube, also known as MS SHS (Square Hollow Section), is widely used in construction frameworks, fabrication structures, machinery supports, and steel engineering projects.
Understanding MS square tube weight per meter is essential for:
Cost estimation
Load calculation
Structural design
Transportation planning
How to Calculate MS Square Tube Weight?
The theoretical weight of an MS square tube is calculated using the basic mass formula:
Weight (W) = Volume (V) × Density (ρ)\textbf{Weight (W) = Volume (V) × Density (ρ)}Weight (W) = Volume (V) × Density (ρ)
Step 1: Calculate Cross-Sectional Area
For a square hollow section:
V=a2−(a−2t)2V = a^2 - (a - 2t)^2V=a2−(a−2t)2
Where:
a = Side length (mm)
t = Wall thickness (mm)
ρ = Density of mild steel = 7.85 g/cm³ (or 7850 kg/m³)
Simplified Practical Formula (Weight Per Meter)
For engineering use, the weight per meter of MS square tube can be simplified as:
\textbf{Weight (kg/m) = 0.00785 × (a^2 - (a - 2t)^2)}
(a and t in millimeters)
This formula directly gives MS SHS pipe weight per meter in kilograms.
MS Square Tube Weight Chart in KG:
|
Sizes |
Weight in KG |
Sizes |
Weight in KG |
Sizes |
Weight in KG |
|
20 x 20 x 2.0 |
1.12 |
75 x 75 x 3.0 |
7.07 |
150 X 150 X 6.3 |
28.30 |
|
25 x 25 x 1.5 |
1.06 |
80 x 80 x 3.6 |
8.59 |
150 X 150 X 10 |
43.60 |
|
25 X 25 X 2.5 |
1.74 |
80 x 80 x 6.0 |
13.90 |
150 X 150 X 16 |
66.40 |
|
30 X 30 X 2.0 |
1.68 |
90 x 90 x 3.6 |
9.72 |
180 X 180 X 5 |
27.40 |
|
30 X 30 X 3.0 |
2.51 |
90 x 90 x 6.0 |
15.76 |
180 X 180 X 8 |
43.00 |
|
40 x 40 x 2.0 |
2.31 |
100 x 100 x 3.0 |
8.96 |
180 X 180 X 12.5 |
65.20 |
|
40 x 40 x 3.0 |
3.45 |
100 x 100 x 5.0 |
14.80 |
200 X 200 X 5 |
30.50 |
|
40 x 40 x 5.0 |
5.40 |
100 x 100 x 6.0 |
16.19 |
200 x 200 x 6.3 |
38.2 |
|
50 x 50 x 2.0 |
2.93 |
100 x 100 x 10 |
27.90 |
200 x 200 x 10 |
59.30 |
|
50 x 50 x 3.0 |
4.39 |
120 x 120 x 6.0 |
21.30 |
200 x 200 x 16 |
91.50 |
|
50 x 50 x 5.0 |
6.97 |
120 x 120 x 8.0 |
27.90 |
250 x 250 x 8 |
60.50 |
|
60 x 60 x 4.0 |
6.97 |
120 X 120 X 12 |
35.8 |
250 x 250 x 12.5 |
92.60 |
|
60 x 60 x 6.0 |
9.45 |
140 X 140 X 5.0 |
21.10 |
300 x 300 x 6.3 |
57.90 |
|
70 x 70 x 3.6 |
7.46 |
140 X 140 X 8 |
32.90 |
300 x 300 x 10 |
57.90 |
|
70 x 70 x 6.3 |
12.50 |
140 X 140 X 12.5 |
49.50 |
300 x 300 x 12.5 |
112.00 |
|
350 x 350 x 8 |
85.70 |
400 x 400 x 10 |
122.00 |
400 x 400 x 12.5 |
152.00 |
Dimensional Tolerances of MS Square Tubing:
|
Length |
6 MM to 11 MM |
|
Weight |
+10%,-8% |
|
Corner Radius |
3T maximum |
|
Outer Diameter |
±1% |
|
Thickness |
±10% |
|
Squareness |
90° ± 2° |
Mild Steel Square Tube Weight Per Meter:
|
Size |
Weight per meter |
Thickness |
|
5 mm |
0.17 |
1.3 |
|
10 mm |
0.26 |
1 |
|
15 mm |
0.60 |
1.5 |
|
20 mm |
0.84 |
1.5 |
|
22 mm |
3.23 |
5.5 |
|
25 mm |
1.68 |
2.5 |
|
30 mm |
3.04 |
4 |
|
35 mm |
2.02 |
2 |
|
36 mm |
3.80 |
4 |
|
40 mm |
2.85 |
2.5 |
|
42 mm |
3.55 |
3 |
|
45 mm |
4.40 |
3.5 |
|
50 mm |
4.31 |
3 |
|
60 mm |
6.82 |
4 |
|
70 mm |
8.07 |
4 |
|
80 mm |
11.44 |
5 |
|
90 mm |
13 |
5 |
|
90 mm |
19.73 |
8 |
|
100 mm |
22.25 |
8 |
|
110 mm |
21.98 |
7 |
|
120 mm |
20.99 |
6 |
|
120 mm |
30.28 |
9 |
|
140 mm |
32.29 |
8 |
|
150 mm |
34.81 |
8 |
|
180 mm |
42.34 |
8 |
|
180 mm |
61.36 |
12 |
FAQ
Q1: Is the weight chart theoretical or actual?
The chart reflects theoretical weight. Actual weight depends on production tolerance.
Q2: Can this formula apply to galvanized MS square tubes?
Yes. Add coating weight if precise calculation is required.
Q3: What unit should be used?
All dimensions must be in millimeters to use the simplified formula directly.
Conclusion
The MS Square Tube Weight Chart in KG provides a fast reference for engineers, fabricators, and procurement managers.
By applying the correct formula and understanding material density, you can accurately determine MS square tube weight per meter, ensuring efficient structural design and cost control.
