127x178 TEE-UB — Sizes, Dimensions & Properties
2 sizes in the 127x178 serial size group. All dimensions in mm, section properties in cm units.
| Designation | Mass (kg/m) | Cut From | h (mm) | b (mm) | A (cm2) | Ixx (cm4) | Iyy (cm4) |
|---|---|---|---|---|---|---|---|
| 127x178x20 | 19.5 | 356x127x39 UB | 176.6 | 126 | 24.9 | 728 | 179 |
| 127x178x17 | 16.5 | 356x127x33 UB | 174.4 | 125.4 | 21.1 | 626 | 140 |
127x178x20 TEE-UB
- Designation
- 127x178x20
- Cut From
- 356x127x39 UB
- Mass per Metre
- 19.5 kg/m
- Depth of Section (h)
- 176.6 mm
- Width of Section (b)
- 126 mm
- Web Thickness (tw)
- 6.6 mm
- Flange Thickness (tf)
- 10.7 mm
- Root Radius (r)
- 10.2 mm
- Cross-Sectional Area
- 24.9 cm2
- Second Moment of Area Ixx
- 728 cm4
- Second Moment of Area Iyy
- 179 cm4
- Elastic Modulus Zxx (Flange)
- 164 cm3
- Elastic Modulus Zxx (Toe)
- 55 cm3
- Elastic Modulus Zyy
- 28.4 cm3
- Plastic Modulus Sxx
- 98 cm3
- Plastic Modulus Syy
- 44.5 cm3
- Radius of Gyration rxx
- 5.41 cm
- Radius of Gyration ryy
- 2.68 cm
- Centroid Distance cy
- 4.43 cm
127x178x17 TEE-UB
- Designation
- 127x178x17
- Cut From
- 356x127x33 UB
- Mass per Metre
- 16.5 kg/m
- Depth of Section (h)
- 174.4 mm
- Width of Section (b)
- 125.4 mm
- Web Thickness (tw)
- 6 mm
- Flange Thickness (tf)
- 8.5 mm
- Root Radius (r)
- 10.2 mm
- Cross-Sectional Area
- 21.1 cm2
- Second Moment of Area Ixx
- 626 cm4
- Second Moment of Area Iyy
- 140 cm4
- Elastic Modulus Zxx (Flange)
- 137 cm3
- Elastic Modulus Zxx (Toe)
- 48.6 cm3
- Elastic Modulus Zyy
- 22.3 cm3
- Plastic Modulus Sxx
- 87.2 cm3
- Plastic Modulus Syy
- 35.1 cm3
- Radius of Gyration rxx
- 5.45 cm
- Radius of Gyration ryy
- 2.58 cm
- Centroid Distance cy
- 4.56 cm
127x178 TEE-UB — Overview
The 127x178 serial size group contains 2 sections, ranging from 16.5 kg/m to 19.5 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.