75×40 CH
Taper flange channels (CH) from Australian-Sections.xlsx (Sheets 1-19).
Outline drawn from the published dimensions. Fillets and root radii are not shown.
Dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 75 mm | 2.9528 in |
| Flange width, b_f | 40 mm | 1.5748 in |
| Web thickness, t_w | 5 mm | 0.19685 in |
| Flange thickness, t_f | 6.5 mm | 0.255906 in |
Bending about the major axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, Iₓ | 721,000 mm⁴ | 1.7322 in⁴ |
| Elastic modulus, Sₓ | 19,226.667 mm³ | 1.1733 in³ |
| Plastic modulus, Zₓ | 22,600 mm³ | 1.3791 in³ |
| Radius of gyration, rₓ | 29.176 mm | 1.1487 in |
| Distance to top fibre | 37.5 mm | 1.4764 in |
| Distance to bottom fibre | 37.5 mm | 1.4764 in |
Bending about the minor axis
| Property | Metric | Imperial |
|---|---|---|
| Second moment of area, I_y | 115,000 mm⁴ | 0.276289 in⁴ |
| Elastic modulus, S_y | 4,166.667 mm³ | 0.254266 in³ |
| Plastic modulus, Z_y | 8,880 mm³ | 0.541891 in³ |
| Radius of gyration, r_y | 11.6522 mm | 0.458747 in |
Torsion and warping
| Property | Metric | Imperial |
|---|---|---|
| Torsion constant, J | 12,200 mm⁴ | 0.029311 in⁴ |
| Warping constant, C_w | 109,000,000 mm⁶ | 0.405905 in⁶ |
Mass
| Property | Metric | Imperial |
|---|---|---|
| Mass per metre | 6.649 kg/m | 4.4679 lb/ft |