139.7 CHS — Sizes, Dimensions & Properties
6 sizes in the 139.7 serial size group. All dimensions in mm, section properties in cm units.
| Designation | Mass (kg/m) | D (mm) | t (mm) | A (cm2) | I (cm4) | Z (cm3) | S (cm3) | r (cm) |
|---|---|---|---|---|---|---|---|---|
| 139.7x4.0 | 13.4 | 139.7 | 4 | 17.1 | 393 | 56.2 | 73.7 | 4.8 |
| 139.7x5.0 | 16.6 | 139.7 | 5 | 21.2 | 481 | 68.8 | 90.8 | 4.77 |
| 139.7x6.0 | 19.8 | 139.7 | 6 | 25.2 | 564 | 80.8 | 107 | 4.73 |
| 139.7x6.3 | 20.7 | 139.7 | 6.3 | 26.4 | 589 | 84.3 | 112 | 4.72 |
| 139.7x8.0 | 26 | 139.7 | 8 | 33.1 | 720 | 103 | 139 | 4.66 |
| 139.7x10.0 | 32 | 139.7 | 10 | 40.7 | 862 | 123 | 169 | 4.6 |
139.7x4.0 CHS
- Designation
- 139.7x4.0
- Outside Diameter (D)
- 139.7 mm
- Wall Thickness (t)
- 4 mm
- Mass per Metre
- 13.4 kg/m
- Cross-Sectional Area
- 17.1 cm2
- Second Moment of Area I
- 393 cm4
- Elastic Modulus Z
- 56.2 cm3
- Plastic Modulus S
- 73.7 cm3
- Radius of Gyration r
- 4.8 cm
- Torsional Constant (It)
- 786 cm4
- Surface Area per Metre
- 0.439 m2/m
- Surface Area per Tonne
- 32.8 m2/t
139.7x5.0 CHS
- Designation
- 139.7x5.0
- Outside Diameter (D)
- 139.7 mm
- Wall Thickness (t)
- 5 mm
- Mass per Metre
- 16.6 kg/m
- Cross-Sectional Area
- 21.2 cm2
- Second Moment of Area I
- 481 cm4
- Elastic Modulus Z
- 68.8 cm3
- Plastic Modulus S
- 90.8 cm3
- Radius of Gyration r
- 4.77 cm
- Torsional Constant (It)
- 961 cm4
- Surface Area per Metre
- 0.439 m2/m
- Surface Area per Tonne
- 26.4 m2/t
139.7x6.0 CHS
- Designation
- 139.7x6.0
- Outside Diameter (D)
- 139.7 mm
- Wall Thickness (t)
- 6 mm
- Mass per Metre
- 19.8 kg/m
- Cross-Sectional Area
- 25.2 cm2
- Second Moment of Area I
- 564 cm4
- Elastic Modulus Z
- 80.8 cm3
- Plastic Modulus S
- 107 cm3
- Radius of Gyration r
- 4.73 cm
- Torsional Constant (It)
- 1,130 cm4
- Surface Area per Metre
- 0.439 m2/m
- Surface Area per Tonne
- 22.2 m2/t
139.7x6.3 CHS
- Designation
- 139.7x6.3
- Outside Diameter (D)
- 139.7 mm
- Wall Thickness (t)
- 6.3 mm
- Mass per Metre
- 20.7 kg/m
- Cross-Sectional Area
- 26.4 cm2
- Second Moment of Area I
- 589 cm4
- Elastic Modulus Z
- 84.3 cm3
- Plastic Modulus S
- 112 cm3
- Radius of Gyration r
- 4.72 cm
- Torsional Constant (It)
- 1,177 cm4
- Surface Area per Metre
- 0.439 m2/m
- Surface Area per Tonne
- 21.2 m2/t
139.7x8.0 CHS
- Designation
- 139.7x8.0
- Outside Diameter (D)
- 139.7 mm
- Wall Thickness (t)
- 8 mm
- Mass per Metre
- 26 kg/m
- Cross-Sectional Area
- 33.1 cm2
- Second Moment of Area I
- 720 cm4
- Elastic Modulus Z
- 103 cm3
- Plastic Modulus S
- 139 cm3
- Radius of Gyration r
- 4.66 cm
- Torsional Constant (It)
- 1,441 cm4
- Surface Area per Metre
- 0.439 m2/m
- Surface Area per Tonne
- 16.9 m2/t
139.7x10.0 CHS
- Designation
- 139.7x10.0
- Outside Diameter (D)
- 139.7 mm
- Wall Thickness (t)
- 10 mm
- Mass per Metre
- 32 kg/m
- Cross-Sectional Area
- 40.7 cm2
- Second Moment of Area I
- 862 cm4
- Elastic Modulus Z
- 123 cm3
- Plastic Modulus S
- 169 cm3
- Radius of Gyration r
- 4.6 cm
- Torsional Constant (It)
- 1,724 cm4
- Surface Area per Metre
- 0.439 m2/m
- Surface Area per Tonne
- 13.7 m2/t
139.7 CHS — Overview
The 139.7 serial size group contains 6 sections, ranging from 32 kg/m to 13.4 kg/m. All sections in this group share the same nominal depth and width but differ in web and flange thickness, which affects the weight and structural capacity.
Section properties are sourced from the Tata Steel Blue Book / SCI P363. For structural design to BS EN 1993-1-1 (Eurocode 3), use these properties with the appropriate partial factors from the UK National Annex.
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Section properties from Tata Steel Blue Book / SCI P363 / BS 4-1:2005.