W12X30
Wide-Flange Beam · AISC Shapes Database v15.0 · United States
W12X30 is a wide-flange beam 312.4 mm deep with a 165.6 mm flange, weighing 44.6 kg/m. The dimensions below are the published AISC Shapes Database v15.0 values; the drawing is generated from them.
Analyse this section, or combine it with plates and other shapes.
Open W12X30 in the Section CalculatorFree, no sign-up, runs in your browser.
Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 312.4 mm | 12.30 in |
| Flange width, bf | 165.6 mm | 6.52 in |
| Flange thickness, tf | 11.2 mm | 0.440 in |
| Web thickness, tw | 6.6 mm | 0.260 in |
| Mass per metre | 44.6 kg/m | 30.0 lb/ft |
| Area, A | 5,671 mm² | 8.79 in² |
| Second moment, Ix | 99,063,079 mm⁴ | 238.0 in⁴ |
| Second moment, Iy | 8,449,498 mm⁴ | 20.3 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 W12X30 the computed area agrees with the published value to better than 0.01% and Ix to 0.50%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Zx | 631,004 mm³ |
| Elastic modulus, Zy | 102,312 mm³ |
| Plastic modulus, Sx | 704,249 mm³ |
| Plastic modulus, Sy | 156,745 mm³ |
| Radius of gyration, rx | 131.8 mm |
| Radius of gyration, ry | 38.7 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