65 x 50 x 8 UA
UA · AS/NZS 3679.1 · Australia / New Zealand
65 x 50 x 8 UA is a ua 65.0 mm deep with a 50.0 mm flange, weighing 6.6 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 | 65.0 mm | 2.56 in |
| Flange width, bf | 50.0 mm | 1.97 in |
| Flange thickness, tf | — mm | — in |
| Web thickness, tw | 7.8 mm | 0.307 in |
| Mass per metre | 6.6 kg/m | 4.4 lb/ft |
| Area, A | 840 mm² | 1.30 in² |
| Second moment, Ix | 340,700 mm⁴ | 0.8 in⁴ |
| Second moment, Iy | 173,900 mm⁴ | 0.4 in⁴ |
| Principal maximum, Imax | 421,000 mm⁴ | 1.0 in⁴ |
| Principal minimum, Imin | 93,600 mm⁴ | 0.2 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 65 x 50 x 8 UA the computed area agrees with the published value to better than 0.01% and Ix to 0.04%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Zx | 7,751 mm³ |
| Elastic modulus, Zy | 4,779 mm³ |
| Plastic modulus, Sx | 14,086 mm³ |
| Plastic modulus, Sy | 8,737 mm³ |
| Radius of gyration, rx | 20.1 mm |
| Radius of gyration, ry | 14.4 mm |
| Principal maximum, Imax (derived) | 420,798 mm⁴ |
| Principal minimum, Imin (derived) | 93,562 mm⁴ |
| Principal axis angle, θp | 29.7° |
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