40 x 40 x 6 EA
EA · AS/NZS 3679.1 · Australia / New Zealand
40 x 40 x 6 EA is a ea 40.0 mm deep with a 40.0 mm flange, weighing 3.5 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 | 40.0 mm | 1.57 in |
| Flange width, bf | 40.0 mm | 1.57 in |
| Flange thickness, tf | — mm | — in |
| Web thickness, tw | 6.0 mm | 0.236 in |
| Mass per metre | 3.5 kg/m | 2.4 lb/ft |
| Area, A | 446 mm² | 0.69 in² |
| Second moment, Ix | 63,100 mm⁴ | 0.2 in⁴ |
| Second moment, Iy | 63,100 mm⁴ | 0.2 in⁴ |
| Principal maximum, Imax | 99,700 mm⁴ | 0.2 in⁴ |
| Principal minimum, Imin | 26,500 mm⁴ | 0.1 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 40 x 40 x 6 EA the computed area agrees with the published value to 0.11% and Ix to better than 0.01%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Zx | 2,257 mm³ |
| Elastic modulus, Zy | 2,257 mm³ |
| Plastic modulus, Sx | 4,122 mm³ |
| Plastic modulus, Sy | 4,122 mm³ |
| Radius of gyration, rx | 11.9 mm |
| Radius of gyration, ry | 11.9 mm |
| Principal maximum, Imax (derived) | 99,745 mm⁴ |
| Principal minimum, Imin (derived) | 26,451 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