StructureCalcsC10X20
American Standard Channel · AISC Shapes Database v15.0 · United States
C10X20 is an American Standard channel 254.0 mm deep with a 69.6 mm wide flange, weighing 29.8 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 | 254.0 mm | 10.00 in |
| Flange width, bf | 69.6 mm | 2.74 in |
| Flange thickness, tf | 11.1 mm | 0.436 in |
| Web thickness, tw | 9.6 mm | 0.379 in |
| Mass per metre | 29.8 kg/m | 20.0 lb/ft |
| Area, A | 3,787 mm² | 5.87 in² |
| Second moment, Ix | 32,840,660 mm⁴ | 78.9 in⁴ |
| Second moment, Iy | 1,165,448 mm⁴ | 2.8 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 C10X20 the computed area agrees with the published value to better than 0.01% and Ix to 0.13%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Sx | 258,257 mm³ |
| Elastic modulus, Sy | 21,785 mm³ |
| Plastic modulus, Zx | 317,563 mm³ |
| Plastic modulus, Zy | 44,414 mm³ |
| Radius of gyration, rx | 93.1 mm |
| Radius of gyration, ry | 17.6 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