65 x 50 x 6 UA
UA · AS/NZS 3679.1 · Australia / New Zealand
65 x 50 x 6 UA is a ua 65.0 mm deep with a 50.0 mm flange, weighing 5.2 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 | 6.0 mm | 0.236 in |
| Mass per metre | 5.2 kg/m | 3.5 lb/ft |
| Area, A | 658 mm² | 1.02 in² |
| Second moment, Ix | 272,500 mm⁴ | 0.7 in⁴ |
| Second moment, Iy | 139,800 mm⁴ | 0.3 in⁴ |
| Principal maximum, Imax | 338,000 mm⁴ | 0.8 in⁴ |
| Principal minimum, Imin | 74,300 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 6 UA the computed area agrees with the published value to 0.02% and Ix to 0.08%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Zx | 6,099 mm³ |
| Elastic modulus, Zy | 3,771 mm³ |
| Plastic modulus, Sx | 11,130 mm³ |
| Plastic modulus, Sy | 6,848 mm³ |
| Radius of gyration, rx | 20.3 mm |
| Radius of gyration, ry | 14.6 mm |
| Principal maximum, Imax (derived) | 337,730 mm⁴ |
| Principal minimum, Imin (derived) | 74,314 mm⁴ |
| Principal axis angle, θp | 29.9° |
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