StructureCalcsC4X4.5
American Standard Channel · AISC Shapes Database v15.0 · United States
C4X4.5 is an American Standard channel 101.6 mm deep with a 38.6 mm wide flange, weighing 6.7 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 | 101.6 mm | 4.00 in |
| Flange width, bf | 38.6 mm | 1.52 in |
| Flange thickness, tf | 7.5 mm | 0.296 in |
| Web thickness, tw | 3.2 mm | 0.125 in |
| Mass per metre | 6.7 kg/m | 4.5 lb/ft |
| Area, A | 865 mm² | 1.34 in² |
| Second moment, Ix | 1,469,297 mm⁴ | 3.5 in⁴ |
| Second moment, Iy | 110,301 mm⁴ | 0.3 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 C4X4.5 the computed area agrees with the published value to better than 0.01% and Ix to 0.31%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Sx | 28,832 mm³ |
| Elastic modulus, Sy | 4,212 mm³ |
| Plastic modulus, Zx | 33,521 mm³ |
| Plastic modulus, Zy | 8,211 mm³ |
| Radius of gyration, rx | 41.2 mm |
| Radius of gyration, ry | 11.4 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