StructureCalcs300 x 200 x 8.0 RHS
Rectangular Hollow Section · AS/NZS 1163 · Australia / New Zealand
300 x 200 x 8.0 RHS is a rectangular hollow section 300 × 200 mm with a 8.0 mm wall, weighing 59.1 kg/m. The dimensions below are the published AS/NZS 1163 values; the drawing is generated from them.
Rectangular Hollow Sections combine one strong axis with clean flat faces for connections, and resist torsion far better than open sections of similar mass.
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Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Overall depth, d | 300 mm | 11.81 in |
| Overall width, b | 200 mm | 7.87 in |
| Wall thickness, t | 8.0 mm | 0.315 in |
| Mass per metre | 59.1 kg/m | 39.7 lb/ft |
| Area, A | 7,524 mm² | 11.66 in² |
| Second moment, Ix | 93,892,738 mm⁴ | 225.6 in⁴ |
| Second moment, Iy | 50,416,670 mm⁴ | 121.1 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 300 x 200 x 8.0 RHS the computed area agrees with the published value to better than 0.01% 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 | 625,952 mm³ |
| Elastic modulus, Zy | 504,167 mm³ |
| Plastic modulus, Sx | 757,075 mm³ |
| Plastic modulus, Sy | 574,462 mm³ |
| Radius of gyration, rx | 111.7 mm |
| Radius of gyration, ry | 81.9 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