StructureCalcsC8X13.75
American Standard Channel · AISC Shapes Database v15.0 · United States
C8X13.75 is an American Standard channel 203.2 mm deep with a 59.4 mm wide flange, weighing 20.5 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.
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Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 203.2 mm | 8.00 in |
| Flange width, bf | 59.4 mm | 2.34 in |
| Flange thickness, tf | 9.9 mm | 0.390 in |
| Web thickness, tw | 7.7 mm | 0.303 in |
| Mass per metre | 20.5 kg/m | 13.7 lb/ft |
| Area, A | 2,606 mm² | 4.04 in² |
| Second moment, Ix | 15,025,955 mm⁴ | 36.1 in⁴ |
| Second moment, Iy | 632,672 mm⁴ | 1.5 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 C8X13.75 the computed area agrees with the published value to better than 0.01% and Ix to 0.04%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Sx | 147,956 mm³ |
| Elastic modulus, Sy | 14,121 mm³ |
| Plastic modulus, Zx | 179,671 mm³ |
| Plastic modulus, Zy | 28,392 mm³ |
| Radius of gyration, rx | 75.9 mm |
| Radius of gyration, ry | 15.7 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