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CHS steel weight refers to the unit weight or theoretical weight of a circular hollow section per unit length, usually expressed in kilograms per meter (kg/m). It is determined by the tube's outside diameter, wall thickness, and the density of steel.
Accurate weight information is essential for material estimation, transportation planning, structural design, and project cost calculations. The CHS steel weight chart below provides standard theoretical weights for commonly used circular hollow section sizes, allowing engineers, fabricators, and buyers to quickly estimate material requirements.
The following Circular Hollow Section (CHS) Weight Charts list the theoretical weight of standard CHS sizes based on outside diameter, wall thickness, and a steel density of 7.85 g/cm³.
For easier reference, the weight charts are grouped into three categories according to the most commonly used CHS size ranges.
Weight values for small circular hollow sections commonly used in fabrication, light structural work, and general engineering.
| CHS Size (OD × WT, mm) | Weight (kg/m) | Weight / 6 m (kg) | Weight / 12 m (kg) |
|---|---|---|---|
| 21.3 × 3.2 | 1.43 | 8.58 | 17.16 |
| 26.9 × 3.2 | 1.90 | 11.40 | 22.80 |
| 33.7 × 2.6 | 2.00 | 12.00 | 24.00 |
| 33.7 × 3.2 | 2.40 | 14.40 | 28.80 |
| 33.7 × 4.0 | 2.90 | 17.40 | 34.80 |
| 42.4 × 2.6 | 2.60 | 15.60 | 31.20 |
| 42.4 × 3.2 | 3.10 | 18.60 | 37.20 |
| 42.4 × 4.0 | 3.80 | 22.80 | 45.60 |
| 48.3 × 3.2 | 3.60 | 21.60 | 43.20 |
| 48.3 × 4.0 | 4.40 | 26.40 | 52.80 |
| 48.3 × 5.0 | 5.30 | 31.80 | 63.60 |
| 60.3 × 3.2 | 4.50 | 27.00 | 54.00 |
| 60.3 × 4.0 | 5.60 | 33.60 | 67.20 |
| 60.3 × 5.0 | 6.80 | 40.80 | 81.60 |
Weight values for medium circular hollow sections commonly used for structural columns, industrial buildings, equipment supports, and general construction.
| CHS Size (OD × WT, mm) | Weight (kg/m) | Weight / 6 m (kg) | Weight / 12 m (kg) |
|---|---|---|---|
| 76.1 × 3.2 | 5.80 | 34.80 | 69.60 |
| 76.1 × 4.0 | 7.10 | 42.60 | 85.20 |
| 76.1 × 5.0 | 8.80 | 52.80 | 105.60 |
| 88.9 × 3.2 | 6.80 | 40.80 | 81.60 |
| 88.9 × 4.0 | 8.40 | 50.40 | 100.80 |
| 88.9 × 5.0 | 10.30 | 61.80 | 123.60 |
| 114.3 × 3.6 | 9.80 | 58.80 | 117.60 |
| 114.3 × 5.0 | 13.50 | 81.00 | 162.00 |
| 114.3 × 6.3 | 16.80 | 100.80 | 201.60 |
| 139.7 × 5.0 | 16.60 | 99.60 | 199.20 |
| 139.7 × 6.3 | 20.70 | 124.20 | 248.40 |
| 139.7 × 8.0 | 26.00 | 156.00 | 312.00 |
| 139.7 × 10.0 | 32.00 | 192.00 | 384.00 |
| 168.3 × 5.0 | 20.10 | 120.60 | 241.20 |
| 168.3 × 6.3 | 25.20 | 151.20 | 302.40 |
| 168.3 × 8.0 | 31.60 | 189.60 | 379.20 |
| 168.3 × 10.0 | 39.00 | 234.00 | 468.00 |
| 193.7 × 5.0 | 23.30 | 139.80 | 279.60 |
| 193.7 × 5.4 | 25.10 | 150.60 | 301.20 |
| 193.7 × 6.3 | 29.10 | 174.60 | 349.20 |
| 193.7 × 8.0 | 36.60 | 219.60 | 439.20 |
| 193.7 × 10.0 | 45.30 | 271.80 | 543.60 |
| 193.7 × 12.5 | 55.90 | 335.40 | 670.80 |
| 193.7 × 16.0 | 70.10 | 420.60 | 841.20 |
Weight values for large circular hollow sections used in heavy structural steelwork, bridges, industrial plants, offshore projects, and infrastructure.
| CHS Size (OD × WT, mm) | Weight (kg/m) | Weight / 6 m (kg) | Weight / 12 m (kg) |
|---|---|---|---|
| 219.1 × 5.0 | 26.40 | 158.40 | 316.80 |
| 219.1 × 6.3 | 33.10 | 198.60 | 397.20 |
| 219.1 × 8.0 | 41.60 | 249.60 | 499.20 |
| 219.1 × 10.0 | 51.60 | 309.60 | 619.20 |
| 219.1 × 12.5 | 63.70 | 382.20 | 764.40 |
| 219.1 × 16.0 | 80.10 | 480.60 | 961.20 |
| 219.1 × 20.0 | 98.20 | 589.20 | 1178.40 |
| 244.5 × 6.3 | 37.00 | 222.00 | 444.00 |
| 244.5 × 8.0 | 46.70 | 280.20 | 560.40 |
| 244.5 × 10.0 | 57.80 | 346.80 | 693.60 |
| 244.5 × 12.5 | 71.50 | 429.00 | 858.00 |
| 244.5 × 16.0 | 90.20 | 541.20 | 1082.40 |
| 244.5 × 20.0 | 111.00 | 666.00 | 1332.00 |
| 273.0 × 6.3 | 41.40 | 248.40 | 496.80 |
| 273.0 × 8.0 | 52.30 | 313.80 | 627.60 |
| 273.0 × 10.0 | 64.90 | 389.40 | 778.80 |
| 273.0 × 12.5 | 80.30 | 481.80 | 963.60 |
| 273.0 × 16.0 | 101.00 | 606.00 | 1212.00 |
| 273.0 × 20.0 | 125.00 | 750.00 | 1500.00 |
| 273.0 × 25.0 | 153.00 | 918.00 | 1836.00 |
| 323.9 × 6.3 | 49.30 | 295.80 | 591.60 |
| 323.9 × 8.0 | 62.30 | 373.80 | 747.60 |
| 323.9 × 10.0 | 77.40 | 464.40 | 928.80 |
| 323.9 × 12.5 | 96.00 | 576.00 | 1152.00 |
| 323.9 × 16.0 | 121.00 | 726.00 | 1452.00 |
| 323.9 × 20.0 | 150.00 | 900.00 | 1800.00 |
| 323.9 × 25.0 | 184.00 | 1104.00 | 2208.00 |
| 355.6 × 8.0 | 68.60 | 411.60 | 823.20 |
| 355.6 × 10.0 | 85.20 | 511.20 | 1022.40 |
| 355.6 × 12.5 | 106.00 | 636.00 | 1272.00 |
| 355.6 × 16.0 | 134.00 | 804.00 | 1608.00 |
| 355.6 × 20.0 | 166.00 | 996.00 | 1992.00 |
| 355.6 × 25.0 | 204.00 | 1224.00 | 2448.00 |
| 406.4 × 10.0 | 97.80 | 586.80 | 1173.60 |
| 406.4 × 12.5 | 121.00 | 726.00 | 1452.00 |
| 406.4 × 16.0 | 154.00 | 924.00 | 1848.00 |
| 406.4 × 20.0 | 191.00 | 1146.00 | 2292.00 |
| 406.4 × 25.0 | 235.00 | 1410.00 | 2820.00 |
| 406.4 × 32.0 | 295.00 | 1770.00 | 3540.00 |
| 457.0 × 10.0 | 110.00 | 660.00 | 1320.00 |
| 457.0 × 12.5 | 137.00 | 822.00 | 1644.00 |
| 457.0 × 16.0 | 174.00 | 1044.00 | 2088.00 |
| 457.0 × 20.0 | 216.00 | 1296.00 | 2592.00 |
| 457.0 × 25.0 | 266.00 | 1596.00 | 3192.00 |
| 457.0 × 32.0 | 335.00 | 2010.00 | 4020.00 |
| 457.0 × 40.0 | 411.00 | 2466.00 | 4932.00 |
Need an offline version of this CHS Steel Weight Chart for engineering calculations, project estimation, or procurement?
📄 CHS Steel Weight Chart (PDF)
The theoretical weight of a Circular Hollow Section (CHS) is determined by its outside diameter, wall thickness, and the density of steel.
For carbon steel CHS, the commonly used formula is:
Weight (kg/m) = (OD − WT) × WT × 0.02466
Where:
| Symbol | Description | Unit |
|---|---|---|
| OD | Outside Diameter | mm |
| WT | Wall Thickness | mm |
| 0.02466 | Constant based on the density of carbon steel (7.85 g/cm³) | — |
This formula provides the theoretical weight per meter and is widely used for structural steel tubes manufactured to ASTM, EN, JIS, and GB standards. It can also be used to calculate the theoretical weight of custom CHS sizes.
Example
For a CHS with an outside diameter of 114.3 mm and a wall thickness of 5.0 mm:
Weight = (114.3 − 5.0) × 5.0 × 0.02466 ≈ 13.5 kg/m
The calculated result matches the value shown in the CHS Steel Weight Chart.
The values shown in this CHS Steel Weight Chart are theoretical weights calculated using a steel density of 7.85 g/cm³ and the nominal dimensions of each section.
The actual weight of delivered CHS steel may vary slightly due to the manufacturing tolerances permitted by the applicable standard.
| Factor | Influence on Actual Weight |
|---|---|
| Manufacturing Tolerances | Small variations in outside diameter and wall thickness may slightly change the actual weight. |
| Steel Density | Theoretical calculations use a standard density of 7.85 g/cm³ for carbon steel. |
| Surface Coating | Galvanizing or other coatings increase the finished weight of the tube. |
| Cut Length | Total weight changes according to the supplied pipe length. |
For engineering calculations, estimating material quantities, and comparing section weights, theoretical values are widely used as the standard reference.
Related technical resources:
CHS Steel Sizes Chart — Standard circular hollow section dimensions and common sizes.
CHS Steel — Product specifications, steel grades, manufacturing standards, and applications.
Square Tube Weight Chart (SHS) — Theoretical weights for square hollow sections.
Rectangular Tube Weight Chart (RHS) — Theoretical weights for rectangular hollow sections.
Q1. What is CHS steel weight?
CHS steel weight refers to the theoretical or actual mass of a circular hollow section, usually expressed in kilograms per meter (kg/m). It is calculated from the outside diameter, wall thickness, and steel density.
Q2. How much does CHS steel weigh per meter?
The theoretical weight is calculated using the outside diameter (OD), wall thickness (WT), and a carbon steel density of 7.85 g/cm³. Standard weight charts provide calculated values for commonly used CHS sizes.
Q3. Why is the actual weight different from the theoretical weight?
Actual weight may vary slightly because of manufacturing tolerances, surface coatings such as galvanizing, and differences in the supplied pipe length. Theoretical values are intended as engineering reference data.
Q4. What unit is used for CHS steel weight?
CHS steel weight is typically expressed in kilograms per meter (kg/m). Total weight can be obtained by multiplying the linear weight by the pipe length.
Q5. Is the CHS steel weight chart suitable for all steel grades?
Yes. The theoretical values are applicable to most carbon steel CHS products manufactured to ASTM, EN, JIS, and GB standards because they are based on the standard carbon steel density of 7.85 g/cm³.
Q6. What is the unit weight of CHS steel?
CHS unit weight is normally expressed in kilograms per meter (kg/m). The value depends on the outside diameter and wall thickness of the circular hollow section.
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