40 x 40 x 3 EA
EA · AS/NZS 3679.1 · Australia / New Zealand
40 x 40 x 3 EA is a ea 40.0 mm deep with a 40.0 mm flange, weighing 1.8 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 | 3.0 mm | 0.118 in |
| Mass per metre | 1.8 kg/m | 1.2 lb/ft |
| Area, A | 233 mm² | 0.36 in² |
| Second moment, Ix | 34,350 mm⁴ | 0.1 in⁴ |
| Second moment, Iy | 34,350 mm⁴ | 0.1 in⁴ |
| Principal maximum, Imax | 54,500 mm⁴ | 0.1 in⁴ |
| Principal minimum, Imin | 14,200 mm⁴ | 0.0 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 3 EA the computed area agrees with the published value to 0.21% and Ix to 0.07%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Zx | 1,177 mm³ |
| Elastic modulus, Zy | 1,177 mm³ |
| Plastic modulus, Sx | 2,168 mm³ |
| Plastic modulus, Sy | 2,168 mm³ |
| Radius of gyration, rx | 12.2 mm |
| Radius of gyration, ry | 12.2 mm |
| Principal maximum, Imax (derived) | 54,515 mm⁴ |
| Principal minimum, Imin (derived) | 14,231 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