914x419x388 UB UB — UK Universal Beam Section Properties
914x419x388 UB is a UK UB (Universal Beam) per BS 4-1 and EN 10365 hot-rolled structural steel section. British Steel Advance sections — part of the heavy UB range.
Dimensions (Metric)
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 920 | mm |
| Flange Width (bf) | 421 | mm |
| Flange Thickness (tf) | 36.6 | mm |
| Web Thickness (tw) | 21.5 | mm |
| Cross-Sectional Area (A) | 493.0 | cmÃÂò |
| Mass | 388.0 | kg/m |
Elastic Section Properties (Metric)
| Property | Strong Axis (Y-Y) | Weak Axis (Z-Z) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 723,000 | 45,400 | cmâÃÂô |
| Elastic Section Modulus (S) | 15,720 | 2,220 | cmÃÂó |
| Plastic Section Modulus (Z) | 10,170 | 3,360 | cmÃÂó |
| Radius of Gyration (i) | 10.50 | 10.50 | cm |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 1,840 | cmâÃÂô |
| Warping Constant (Cw) | 62,600,000 | cmâÃÂö |
Design Resources
- UK Steel Design Guide (EN 1993) — Eurocode 3 + UK National Annex
- UK Section Properties Guide — UB, UC, PFC overview
- Beam Capacity Calculator — Check 914x419x388 UB for your loads
- Column Capacity Calculator — Check 914x419x388 UB as a column
- Section Properties Database — Compare with other sections
Frequently Asked Questions
What is the 914x419x388 UB section depth? The 914x419x388 UB has a nominal depth of 920mm and a flange width of 421mm. The UB series is produced to BS 4-1 and EN 10365 by British Steel (Scunthorpe) and Tata Steel.
What steel grade is standard for 914x419x388 UB? Typically S355J2 per EN 10025-2. Also available as S275JR, S460M. Verify grade requirements per EN 1993-1-1 and the UK National Annex.
What is the mass of a 914x419x388 UB beam? 388.0 kg/m. A 12m length weighs approximately 4,656 kg.
What is the section modulus of 914x419x388 UB? S_y = 15,720 cmÃÂó (strong axis) and S_z = 2,220 cmÃÂó (weak axis). The plastic section modulus Z_y = 10,170 cmÃÂó.
Related Pages
- UK Steel Design Guide (EN 1993)
- UK UB & UC Section Properties
- EN 1993 Column Buckling
- Beam Capacity Calculator
- Column Capacity Calculator
Educational reference only. Verify all section properties against the current British Steel / Tata Steel section catalogue and BS 4-1 before design. Results are PRELIMINARY — NOT FOR CONSTRUCTION.