Australia Taper Flange Beams & Section Properties
Browse Australian Taper flange beams from the supplied metric section workbook. Compare dimensions and section properties, open a designation for full details, or load a section into Optimal Beam.
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Showing Australia · Taper Flange Beams · Metric
Australian-Sections.xlsx (Sheets 1-19) · 443 sections
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Showing the most relevant 75 sections.
| Designation | Weight (kg/m) | Depth, d (mm) | Width (mm) | Area (mm²) | Ix (mm⁴) | Sx (mm³) |
|---|---|---|---|---|---|---|
| 125×65 TFB | 13.1095 | 125 | 65 | 1670 | 4340000 | 69440 |
| 100×45 TFB | 7.19845 | 100 | 45 | 917 | 1460000 | 29200 |
Family overview
What are Australia Taper Flange Beams?
Browse Australian Taper flange beams from the supplied metric section workbook. Compare dimensions and section properties, open a designation for full details, or load a section into Optimal Beam.
Designations
Understanding Taper Flange Beams designations
TFB designations list nominal depth × flange width followed by the taper-flange beam code.
Nominal depth series
Browse by series
Use these series labels to filter the finder table above.
Properties
Taper Flange Beams properties explained
These properties are especially relevant when comparing Taper Flange Beams. View the complete property glossary.
| Symbol | Property | Units | Why it matters |
|---|---|---|---|
| Weight | Weight | lb/ft, kg/m | Mass per unit length; used for self-weight and economy comparisons |
| d | Overall depth | in, mm | Overall depth and clearance |
| bf | Flange width | in, mm | Overall flange width and lateral behaviour |
| tw | Web thickness | in, mm | Web thickness and shear-related behaviour |
| tf | Flange thickness | in, mm | Flange thickness and flexural/local behaviour |
| A | Cross-sectional area | in², mm² | Total steel cross-sectional area |
| Ix | Moment of inertia (x) | in⁴, mm⁴ | Major-axis flexural stiffness |
| Iy | Moment of inertia (y) | in⁴, mm⁴ | Minor-axis flexural stiffness |
| Sx | Elastic section modulus (x) | in³, mm³ | Elastic bending property about the x-axis |
| Sy | Elastic section modulus (y) | in³, mm³ | Elastic bending property about the y-axis |
| Zx | Plastic section modulus (x) | in³, mm³ | Plastic bending property about the x-axis |
| Zy | Plastic section modulus (y) | in³, mm³ | Plastic bending property about the y-axis |
| rx | Radius of gyration (x) | in, mm | Strong-axis radius of gyration |
| ry | Radius of gyration (y) | in, mm | Weak-axis radius of gyration and lateral stability relevance |
| J | Torsional constant | in⁴, mm⁴ | Torsional constant |
| Cw | Warping constant | in⁶, mm⁶ | Warping constant for lateral-torsional behaviour |
Library summary
Computed Taper Flange Beams summary
The current Australia Taper Flange Beams library contains 2 sections across 2 nominal-depth series. Published weights range from 4.84 to 8.81 lb/ft , and actual depths range from 3.94 to 4.92 inches .
- Lightest section
- 100x45 TFB
- Heaviest section
- 125x65 TFB
- Ix range
- 3.51 – 10.43 in⁴
- Sx range
- 1.78 – 4.24 in³
Related families
Related Australia families
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Source: Australian-Sections.xlsx (Sheets 1-19) v2019.11 · Verified July 2026 · View methodology