Quick Answer
Square Hollow Section (SHS) steel is a square-shaped hollow structural steel tube widely used in construction, steel structures, machinery manufacturing, and engineering projects. A square hollow section weight chart helps engineers and buyers quickly determine the theoretical weight, wall thickness, and dimensions of SHS steel tubes for material estimation, transportation planning, and structural design.
What Is Square Hollow Section (SHS)?
Square Hollow Section (SHS) is a welded steel tube with a square hollow cross-section. It is usually manufactured from hot rolled steel coils or strips through cold-forming or hot-forming processes, followed by high-frequency welding.
Compared with traditional open steel sections, SHS steel tubing offers:
High strength-to-weight ratio
Excellent torsional resistance
Uniform structural performance
Easy fabrication and welding
Modern architectural appearance
Because of these advantages, SHS steel is widely used in:
Steel structure buildings
Construction frameworks
Machinery manufacturing
Bridge engineering
Support columns
Transportation equipment
Agricultural structures
Common Square Hollow Section Standards
SHS steel tubes are commonly produced according to international standards such as:
ASTM A500
EN 10219
EN 10210
JIS standards
AS/NZS standards
These standards define:
Mechanical properties
Dimensional tolerances
Chemical composition
Weld quality
Testing requirements
Common Materials for SHS Steel Tubes
Square hollow sections are available in different steel grades depending on project requirements.
Common SHS materials include:
Carbon steel
Mild steel
Galvanized steel
High-strength low-alloy steel
Structural steel grades
Typical steel grades include:
ASTM A500 Grade B
ASTM A500 Grade C
S235JR
S275JR
S355JR
Why Is SHS Weight Calculation Important?
A square hollow section weight chart is essential for engineers, fabricators, contractors, and steel pipe buyers because it helps calculate:
Steel consumption
Transportation cost
Structural load capacity
Fabrication efficiency
Material procurement budgets
Accurate SHS weight calculation also improves engineering design accuracy and project cost control.
Square Hollow Section Weight Chart
The following table shows common SHS steel sizes and approximate theoretical weights.
|
Product Size (mm)
|
1.5 mm
|
2.0 mm
|
2.5 mm
|
3.0 mm
|
4.0 mm
|
5.0 mm
|
6.0 mm
|
6.3 mm
|
|
20 × 20
|
0.852
|
1.097
|
1.321
|
1.526
|
|
|
|
|
|
22 × 22
|
0.947
|
1.222
|
|
|
|
|
|
|
|
25 × 25
|
1.088
|
1.411
|
1.714
|
1.997
|
2.503
|
|
|
|
|
30 × 30
|
1.323
|
1.725
|
2.106
|
2.468
|
3.131
|
|
|
|
|
35 × 35
|
1.559
|
2.039
|
2.499
|
2.939
|
3.759
|
|
|
|
|
38 × 38
|
|
2.227
|
2.734
|
3.221
|
|
|
|
|
|
40 × 40
|
1.794
|
2.353
|
2.891
|
3.41
|
4.387
|
5.284
|
|
|
|
42 × 42
|
|
|
|
3.598
|
4.638
|
5.598
|
|
|
|
45 × 45
|
2.03
|
2.667
|
3.284
|
3.881
|
5.015
|
6.069
|
|
|
|
48 × 48
|
|
|
|
4.163
|
|
|
|
|
|
50 × 50
|
2.265
|
2.981
|
3.676
|
4.352
|
5.643
|
6.854
|
7.986
|
8.31
|
|
52 × 52
|
|
|
|
4.54
|
|
|
|
|
|
55 × 55
|
|
|
|
4.823
|
|
|
|
|
|
60 × 60
|
2.736
|
3.609
|
4.461
|
5.294
|
6.899
|
8.424
|
9.87
|
10.289
|
|
64 × 64
|
|
|
4.775
|
5.67
|
|
|
|
|
|
65 × 65
|
|
3.923
|
4.854
|
5.765
|
7.527
|
|
|
|
|
70 × 70
|
3.207
|
4.237
|
5.246
|
6.236
|
8.155
|
9.994
|
11.754
|
12.267
|
|
75 × 75
|
|
|
|
6.707
|
|
|
|
|
|
80 × 80
|
3.678
|
4.865
|
6.03
|
7.178
|
9.411
|
11.564
|
13.638
|
14.245
|
|
90 × 90
|
4.149
|
5.493
|
6.816
|
8.12
|
10.667
|
13.134
|
15.522
|
16.223
|
|
100 × 100
|
|
6.121
|
7.601
|
9.062
|
11.923
|
14.704
|
17.406
|
18.201
|
|
110 × 110
|
|
6.749
|
8.366
|
10.001
|
13.179
|
16.274
|
19.29
|
20.18
|
|
120 × 120
|
|
7.377
|
9.171
|
10.946
|
14.435
|
17.844
|
21.174
|
22.158
|
|
125 × 125
|
|
7.691
|
9.564
|
11.417
|
15.063
|
18.629
|
22.116
|
23.147
|
|
130 × 130
|
|
|
9.956
|
11.888
|
15.691
|
19.414
|
23.058
|
24.136
|
|
140 × 140
|
|
|
|
12.83
|
16.947
|
20.984
|
24.942
|
26.114
|
|
150 × 150
|
|
|
|
13.772
|
18.203
|
22.554
|
26.826
|
28.092
|
|
160 × 160
|
|
|
|
14.714
|
19.459
|
24.124
|
28.71
|
30.071
|
|
175 × 175
|
|
|
|
16.127
|
21.343
|
26.479
|
31.536
|
33.038
|
|
180 × 180
|
|
|
|
16.598
|
21.971
|
27.264
|
32.478
|
34.027
|
|
200 × 200
|
|
|
|
|
24.483
|
30.404
|
36.246
|
37.983
|
|
220 × 220
|
|
|
|
|
26.995
|
33.544
|
40.014
|
41.94
|
|
250 × 250
|
|
|
|
|
30.763
|
38.254
|
45.666
|
47.874
|
|
260 × 260
|
|
|
|
|
32.019
|
39.824
|
47.55
|
49.853
|
|
300 × 300
|
|
|
|
|
|
46.104
|
55.086
|
57.765
|
|
325 × 325
|
|
|
|
|
|
50.029
|
59.796
|
62.711
|
|
350 × 350
|
|
|
|
|
|
|
64.506
|
67.656
|
|
400 × 400
|
|
|
|
|
|
|
73.926
|
77.547
|
Square Hollow Section Weight Formula
The theoretical weight of SHS steel tubing is usually calculated using the following formula:
Weight (kg/m)=4×Thickness×(Side Length−Thickness)×0.00785
Formula Variables
Side Length = outer width of the square tube (mm)
Thickness = wall thickness (mm)
0.00785 = density coefficient of carbon steel
This formula provides the theoretical weight per meter of square hollow section steel tubes.
FAQ
- What is the difference between SHS and RHS?
SHS has a square cross-section, while RHS (Rectangular Hollow Section) has a rectangular shape. SHS provides more symmetrical structural performance.
- Is SHS stronger than round pipe?
For many structural applications, SHS provides better torsional resistance and easier connection fabrication compared with round steel pipes.
- How do you calculate SHS weight per meter?
Theoretical weight is calculated based on side length, wall thickness, and steel density using the standard SHS weight formula.
- What is the most common SHS material?
Carbon steel SHS manufactured according to ASTM A500 or EN standards is the most commonly used material in construction and structural engineering.
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