W21X44
Wide-Flange Beam · AISC Shapes Database v15.0 · United States
W21X44 is a wide-flange beam 525.8 mm deep with a 165.1 mm flange, weighing 65.5 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 W21X44 in the Section CalculatorFree, no sign-up, runs in your browser.
Published dimensions
| Property | Metric | Imperial |
|---|---|---|
| Depth, d | 525.8 mm | 20.70 in |
| Flange width, bf | 165.1 mm | 6.50 in |
| Flange thickness, tf | 11.4 mm | 0.450 in |
| Web thickness, tw | 8.9 mm | 0.350 in |
| Mass per metre | 65.5 kg/m | 44.0 lb/ft |
| Area, A | 8,387 mm² | 13.00 in² |
| Second moment, Ix | 350,883,092 mm⁴ | 843.0 in⁴ |
| Second moment, Iy | 8,615,991 mm⁴ | 20.7 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 W21X44 the computed area agrees with the published value to 0.01% and Ix to 0.53%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Zx | 1,341,723 mm³ |
| Elastic modulus, Zy | 104,313 mm³ |
| Plastic modulus, Sx | 1,568,269 mm³ |
| Plastic modulus, Sy | 166,763 mm³ |
| Radius of gyration, rx | 205.1 mm |
| Radius of gyration, ry | 32.0 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