WT420X125.5: Sizes, Dimensions and Properties
Full section properties for WT420X125.5. All dimensions in mm, section properties in cm units.
| Designation | Mass (kg/m) | h (mm) | b (mm) | tw (mm) | tf (mm) | A (cm2) | Ixx (cm4) | Iyy (cm4) | cy (mm) |
|---|---|---|---|---|---|---|---|---|---|
| WT420X125.5 | 126 | 429 | 292 | 17 | 31 | 159 | 27,000 | 6,450 | 107 |
WT420X125.5 WT
- Designation
- WT420X125.5
- Serial Size
- 420x125.5
- Mass per Metre
- 126 kg/m
- Cross-Sectional Area
- 159 cm2
- Depth of Section (h)
- 429 mm
- Width of Section (b)
- 292 mm
- Web Thickness (tw)
- 17 mm
- Flange Thickness (tf)
- 31 mm
- Second Moment of Area Ixx
- 27,000 cm4
- Second Moment of Area Iyy
- 6,450 cm4
- Elastic Modulus Zxx
- 837 cm3
- Elastic Modulus Zyy
- 442 cm3
- Plastic Modulus Sxx
- 1,490 cm3
- Plastic Modulus Syy
- 690 cm3
- Radius of Gyration rxx
- 13 cm
- Radius of Gyration ryy
- 6.35 cm
- Centroid Distance cy
- 107 cm
- _note
- Tee: elasticModulusX is the single AISC Sx (controlling fibre); flange/toe split not in source.
- Source Doc
- aisc-shapes-v16
- Verified
- 1
- Verified Note
- Parsed directly from the official AISC Shapes Database v16.0 (SI block). Units converted to SteelSpec schema (A mm2->cm2, I 10^6 mm4->cm4, S 10^3 mm3=cm3, r mm->cm). No transcription.
420x125.5 WT Overview
The 420x125.5 serial size group contains 1 section, ranging from 126 kg/m to 126 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 AISC Shapes Database v16.0.