65 x 65 x 5 EA
EA · AS/NZS 3679.1 · Australia / New Zealand
65 x 65 x 5 EA is a ea 65.0 mm deep with a 65.0 mm flange, weighing 4.6 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 | 65.0 mm | 2.56 in |
| Flange thickness, tf | — mm | — in |
| Web thickness, tw | 4.6 mm | 0.181 in |
| Mass per metre | 4.6 kg/m | 3.1 lb/ft |
| Area, A | 581 mm² | 0.90 in² |
| Second moment, Ix | 233,450 mm⁴ | 0.6 in⁴ |
| Second moment, Iy | 233,450 mm⁴ | 0.6 in⁴ |
| Principal maximum, Imax | 371,000 mm⁴ | 0.9 in⁴ |
| Principal minimum, Imin | 95,900 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 65 x 5 EA the computed area agrees with the published value to 0.05% and Ix to 0.09%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Zx | 4,939 mm³ |
| Elastic modulus, Zy | 4,939 mm³ |
| Plastic modulus, Sx | 8,971 mm³ |
| Plastic modulus, Sy | 8,971 mm³ |
| Radius of gyration, rx | 20.1 mm |
| Radius of gyration, ry | 20.1 mm |
| Principal maximum, Imax (derived) | 371,430 mm⁴ |
| Principal minimum, Imin (derived) | 95,889 mm⁴ |
| Principal axis angle, θp | 45.0° |
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