W18X234
Wide-Flange Beam · AISC Shapes Database v15.0 · United States
W18X234 is a wide-flange beam 535.9 mm deep with a 297.2 mm flange, weighing 348.2 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 | 535.9 mm | 21.10 in |
| Flange width, bf | 297.2 mm | 11.70 in |
| Flange thickness, tf | 53.6 mm | 2.110 in |
| Web thickness, tw | 29.5 mm | 1.160 in |
| Mass per metre | 348.2 kg/m | 234.0 lb/ft |
| Area, A | 44,258 mm² | 68.60 in² |
| Second moment, Ix | 2,039,533,987 mm⁴ | 4,900.0 in⁴ |
| Second moment, Iy | 232,257,136 mm⁴ | 558.0 in⁴ |
Derived section properties
Integrated from a square-cornered outline: no root radius is published for this standard, and that is material a rolled section really has, so these run slightly below the published values. For W18X234 the computed area is 0.51% from published and Ix 0.70%. Where a value is also published, the published one above is the one to quote.
| Property | Value |
|---|---|
| Elastic modulus, Zx | 7,664,284 mm³ |
| Elastic modulus, Zy | 1,583,765 mm³ |
| Plastic modulus, Sx | 9,035,792 mm³ |
| Plastic modulus, Sy | 2,459,455 mm³ |
| Radius of gyration, rx | 214.9 mm |
| Radius of gyration, ry | 72.7 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