355.6 CHS — Sizes, Dimensions & Properties
8 sizes in the 355.6 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) |
|---|---|---|---|---|---|---|---|---|
| 355.6x5.0 | 43.2 | 355.6 | 5 | 55.1 | 8,460 | 476 | 615 | 12.4 |
| 355.6x6.0 | 51.7 | 355.6 | 6 | 65.9 | 10,100 | 566 | 733 | 12.4 |
| 355.6x8.0 | 68.6 | 355.6 | 8 | 87.4 | 13,200 | 742 | 967 | 12.3 |
| 355.6x10.0 | 85.2 | 355.6 | 10 | 109 | 16,200 | 912 | 1,200 | 12.2 |
| 355.6x12.0 | 102 | 355.6 | 12 | 130 | 19,100 | 1,080 | 1,420 | 12.2 |
| 355.6x12.5 | 106 | 355.6 | 12.5 | 135 | 19,900 | 1,120 | 1,470 | 12.1 |
| 355.6x14.2 | 120 | 355.6 | 14.2 | 152 | 22,200 | 1,250 | 1,660 | 12.1 |
| 355.6x16.0 | 134 | 355.6 | 16 | 171 | 24,700 | 1,390 | 1,850 | 12 |
355.6x5.0 CHS
- Designation
- 355.6x5.0
- Outside Diameter (D)
- 355.6 mm
- Wall Thickness (t)
- 5 mm
- Mass per Metre
- 43.2 kg/m
- Cross-Sectional Area
- 55.1 cm2
- Second Moment of Area I
- 8,460 cm4
- Elastic Modulus Z
- 476 cm3
- Plastic Modulus S
- 615 cm3
- Radius of Gyration r
- 12.4 cm
- Torsional Constant (It)
- 16,900 cm4
- Surface Area per Metre
- 1.12 m2/m
- Surface Area per Tonne
- 25.8 m2/t
355.6x6.0 CHS
- Designation
- 355.6x6.0
- Outside Diameter (D)
- 355.6 mm
- Wall Thickness (t)
- 6 mm
- Mass per Metre
- 51.7 kg/m
- Cross-Sectional Area
- 65.9 cm2
- Second Moment of Area I
- 10,100 cm4
- Elastic Modulus Z
- 566 cm3
- Plastic Modulus S
- 733 cm3
- Radius of Gyration r
- 12.4 cm
- Torsional Constant (It)
- 20,100 cm4
- Surface Area per Metre
- 1.12 m2/m
- Surface Area per Tonne
- 21.6 m2/t
355.6x8.0 CHS
- Designation
- 355.6x8.0
- Outside Diameter (D)
- 355.6 mm
- Wall Thickness (t)
- 8 mm
- Mass per Metre
- 68.6 kg/m
- Cross-Sectional Area
- 87.4 cm2
- Second Moment of Area I
- 13,200 cm4
- Elastic Modulus Z
- 742 cm3
- Plastic Modulus S
- 967 cm3
- Radius of Gyration r
- 12.3 cm
- Torsional Constant (It)
- 26,400 cm4
- Surface Area per Metre
- 1.12 m2/m
- Surface Area per Tonne
- 16.3 m2/t
355.6x10.0 CHS
- Designation
- 355.6x10.0
- Outside Diameter (D)
- 355.6 mm
- Wall Thickness (t)
- 10 mm
- Mass per Metre
- 85.2 kg/m
- Cross-Sectional Area
- 109 cm2
- Second Moment of Area I
- 16,200 cm4
- Elastic Modulus Z
- 912 cm3
- Plastic Modulus S
- 1,200 cm3
- Radius of Gyration r
- 12.2 cm
- Torsional Constant (It)
- 32,400 cm4
- Surface Area per Metre
- 1.12 m2/m
- Surface Area per Tonne
- 13.1 m2/t
355.6x12.0 CHS
- Designation
- 355.6x12.0
- Outside Diameter (D)
- 355.6 mm
- Wall Thickness (t)
- 12 mm
- Mass per Metre
- 102 kg/m
- Cross-Sectional Area
- 130 cm2
- Second Moment of Area I
- 19,100 cm4
- Elastic Modulus Z
- 1,080 cm3
- Plastic Modulus S
- 1,420 cm3
- Radius of Gyration r
- 12.2 cm
- Torsional Constant (It)
- 38,300 cm4
- Surface Area per Metre
- 1.12 m2/m
- Surface Area per Tonne
- 11 m2/t
355.6x12.5 CHS
- Designation
- 355.6x12.5
- Outside Diameter (D)
- 355.6 mm
- Wall Thickness (t)
- 12.5 mm
- Mass per Metre
- 106 kg/m
- Cross-Sectional Area
- 135 cm2
- Second Moment of Area I
- 19,900 cm4
- Elastic Modulus Z
- 1,120 cm3
- Plastic Modulus S
- 1,470 cm3
- Radius of Gyration r
- 12.1 cm
- Torsional Constant (It)
- 39,700 cm4
- Surface Area per Metre
- 1.12 m2/m
- Surface Area per Tonne
- 10.6 m2/t
355.6x14.2 CHS
- Designation
- 355.6x14.2
- Outside Diameter (D)
- 355.6 mm
- Wall Thickness (t)
- 14.2 mm
- Mass per Metre
- 120 kg/m
- Cross-Sectional Area
- 152 cm2
- Second Moment of Area I
- 22,200 cm4
- Elastic Modulus Z
- 1,250 cm3
- Plastic Modulus S
- 1,660 cm3
- Radius of Gyration r
- 12.1 cm
- Torsional Constant (It)
- 44,500 cm4
- Surface Area per Metre
- 1.12 m2/m
- Surface Area per Tonne
- 9.34 m2/t
355.6x16.0 CHS
- Designation
- 355.6x16.0
- Outside Diameter (D)
- 355.6 mm
- Wall Thickness (t)
- 16 mm
- Mass per Metre
- 134 kg/m
- Cross-Sectional Area
- 171 cm2
- Second Moment of Area I
- 24,700 cm4
- Elastic Modulus Z
- 1,390 cm3
- Plastic Modulus S
- 1,850 cm3
- Radius of Gyration r
- 12 cm
- Torsional Constant (It)
- 49,300 cm4
- Surface Area per Metre
- 1.12 m2/m
- Surface Area per Tonne
- 8.34 m2/t
355.6 CHS — Overview
The 355.6 serial size group contains 8 sections, ranging from 134 kg/m to 43.2 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.