StructureCalcs30 x 30 x 1.6 SHS
Square Hollow Section · AS/NZS 1163 · Australia / New Zealand
30 x 30 x 1.6 SHS is a square hollow section 30 × 30 mm with a 1.6 mm wall, weighing 1.4 kg/m. The dimensions below are the published AS/NZS 1163 values; the drawing is generated from them.
Square Hollow Sections carry equal stiffness about both geometric axes, which makes them a natural column and truss-chord choice.
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Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Overall depth, d | 30 mm | 1.18 in |
| Overall width, b | 30 mm | 1.18 in |
| Wall thickness, t | 1.6 mm | 0.063 in |
| Mass per metre | 1.4 kg/m | 0.9 lb/ft |
| Area, A | 175 mm² | 0.27 in² |
| Second moment, Ix | 23,088 mm⁴ | 0.1 in⁴ |
| Second moment, Iy | 23,088 mm⁴ | 0.1 in⁴ |
Derived section properties
Integrated from the section's own outline including its outside corner radii, whose arcs are integrated analytically rather than approximated by facets. For 30 x 30 x 1.6 SHS the computed area agrees with the published value to 0.02% 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 | 1,539 mm³ |
| Elastic modulus, Zy | 1,539 mm³ |
| Plastic modulus, Sx | 1,841 mm³ |
| Plastic modulus, Sy | 1,841 mm³ |
| Radius of gyration, rx | 11.5 mm |
| Radius of gyration, ry | 11.5 mm |
Z is the elastic modulus and S the plastic modulus, following AS 4100. Under AISC 360 the letters are reversed.
Neighbouring sizes
Where these numbers come from
Published AS/NZS 1163 values. How StructureCalcs verifies its numbers · Understanding steel section properties · Query this section over the API