457x191x98 UB UB — UK Universal Beam Section Properties
457x191x98 UB is a UK UB (Universal Beam) per BS 4-1 and EN 10365 hot-rolled structural steel section. British Steel Advance sections — common floor beam.
Dimensions (Metric)
| Property | Value | Unit |
|---|---|---|
| Depth (d) | 465 | mm |
| Flange Width (bf) | 193 | mm |
| Flange Thickness (tf) | 19.6 | mm |
| Web Thickness (tw) | 11.4 | mm |
| Cross-Sectional Area (A) | 125.0 | cmÃÂò |
| Mass | 98.0 | kg/m |
Elastic Section Properties (Metric)
| Property | Strong Axis (Y-Y) | Weak Axis (Z-Z) | Unit |
|---|---|---|---|
| Moment of Inertia (I) | 45,500 | 2,400 | cmâÃÂô |
| Elastic Section Modulus (S) | 1,960 | 388 | cmÃÂó |
| Plastic Section Modulus (Z) | 1,114 | 598 | cmÃÂó |
| Radius of Gyration (i) | 4.33 | 4.33 | cm |
Torsional Properties
| Property | Value | Unit |
|---|---|---|
| Torsional Constant (J) | 100 | cmâÃÂô |
| Warping Constant (Cw) | 1,330,000 | 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 457x191x98 UB for your loads
- Column Capacity Calculator — Check 457x191x98 UB as a column
- Section Properties Database — Compare with other sections
Frequently Asked Questions
What is the 457x191x98 UB section depth? The 457x191x98 UB has a nominal depth of 465.1mm and a flange width of 193mm. 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 457x191x98 UB? Typically S355J2 per EN 10025-2. Also available as S275JR. Verify grade requirements per EN 1993-1-1 and the UK National Annex.
What is the mass of a 457x191x98 UB beam? 98.0 kg/m. A 12m length weighs approximately 1,176 kg.
What is the section modulus of 457x191x98 UB? S_y = 1,960 cmÃÂó (strong axis) and S_z = 388 cmÃÂó (weak axis). The plastic section modulus Z_y = 1,114 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.