StructureCalcsC15X40
American Standard Channel · AISC Shapes Database v15.0 · United States
C15X40 is an American Standard channel 381.0 mm deep with a 89.4 mm wide flange, weighing 59.5 kg/m. The dimensions below are the published AISC Shapes Database v15.0 values; the drawing is generated from them.
C-shapes are American Standard channels with tapered flanges — stringers, purlins and frames where a single flat back face is wanted.
Analyse this section, or combine it with plates and other shapes.
Open C15X40 in the Section CalculatorFree, no sign-up, runs in your browser.
Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 381.0 mm | 15.00 in |
| Flange width, bf | 89.4 mm | 3.52 in |
| Flange thickness, tf | 16.5 mm | 0.650 in |
| Web thickness, tw | 13.2 mm | 0.520 in |
| Mass per metre | 59.5 kg/m | 40.0 lb/ft |
| Area, A | 7,613 mm² | 11.80 in² |
| Second moment, Ix | 144,848,536 mm⁴ | 348.0 in⁴ |
| Second moment, Iy | 3,816,842 mm⁴ | 9.2 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 C15X40 the computed area agrees with the published value to better than 0.01% and Ix to 0.73%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Sx | 765,902 mm³ |
| Elastic modulus, Sy | 55,946 mm³ |
| Plastic modulus, Zx | 947,515 mm³ |
| Plastic modulus, Zy | 113,044 mm³ |
| Radius of gyration, rx | 138.4 mm |
| Radius of gyration, ry | 22.6 mm |
S is the elastic modulus and Z the plastic modulus, following AISC 360. Australian and British practice reverse the letters.
Neighbouring sizes
Where these numbers come from
Published AISC Shapes Database v15.0 values. How StructureCalcs verifies its numbers · Understanding steel section properties · Query this section over the API