W12X72
Wide-Flange Beam · AISC Shapes Database v15.0 · United States
W12X72 is a wide-flange beam 312.4 mm deep with a 304.8 mm flange, weighing 107.2 kg/m. The dimensions below are the published AISC Shapes Database v15.0 values; the drawing is generated from them.
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Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 312.4 mm | 12.30 in |
| Flange width, bf | 304.8 mm | 12.00 in |
| Flange thickness, tf | 17.0 mm | 0.670 in |
| Web thickness, tw | 10.9 mm | 0.430 in |
| Mass per metre | 107.2 kg/m | 72.0 lb/ft |
| Area, A | 13,613 mm² | 21.10 in² |
| Second moment, Ix | 248,490,161 mm⁴ | 597.0 in⁴ |
| Second moment, Iy | 81,165,128 mm⁴ | 195.0 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 W12X72 the computed area agrees with the published value to 0.01% and Ix to 0.56%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Zx | 1,599,661 mm³ |
| Elastic modulus, Zy | 527,381 mm³ |
| Plastic modulus, Sx | 1,770,940 mm³ |
| Plastic modulus, Sy | 800,660 mm³ |
| Radius of gyration, rx | 135.5 mm |
| Radius of gyration, ry | 76.8 mm |
Z is the elastic modulus and S the plastic modulus, following AS 4100. Under AISC 360 the letters are reversed — S is elastic and Z is plastic.
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