250UB25.7
Universal Beam · AS/NZS 3679.1 · Australia / New Zealand
250UB25.7 is a universal beam 248.0 mm deep with a 124.0 mm flange, weighing 25.7 kg/m. The dimensions below are the published AS/NZS 3679.1 values; the drawing is generated from them.
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Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 248.0 mm | 9.76 in |
| Flange width, bf | 124.0 mm | 4.88 in |
| Flange thickness, tf | 8.0 mm | 0.315 in |
| Web thickness, tw | 5.0 mm | 0.197 in |
| Mass per metre | 25.7 kg/m | 17.2 lb/ft |
| Area, A | 3,268 mm² | 5.06 in² |
| Second moment, Ix | 35,526,074 mm⁴ | 85.4 in⁴ |
| Second moment, Iy | 2,550,000 mm⁴ | 6.1 in⁴ |
Derived section properties
Integrated from the section's own outline including the root and toe radii, whose arcs are integrated analytically rather than approximated by facets. For 250UB25.7 the computed area agrees with the published value to better than 0.01% and Ix to 0.44%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Zx | 285,251 mm³ |
| Elastic modulus, Zy | 41,105 mm³ |
| Plastic modulus, Sx | 319,368 mm³ |
| Plastic modulus, Sy | 63,594 mm³ |
| Radius of gyration, rx | 104.0 mm |
| Radius of gyration, ry | 27.9 mm |
Z is the elastic modulus and S the plastic modulus, following AS 4100. Under AISC 360 the letters are reversed — S is elastic and Z is plastic.
Neighbouring sizes
Where these numbers come from
Published AS/NZS 3679.1 values. How StructureCalcs verifies its numbers · Understanding steel section properties · Query this section over the API