W18×50 wide-flange beam

W18×50 weighs 50 lb per foot. Detailing dimensions and section properties below come from the AISC Shapes Database, 16th Edition. Values are shown to the nearest 1/16 in. as they appear on a shop drawing.

Detailing dimensions

Depth (d)18"
Flange width (bf)7 1/2"
Web thickness (tw)3/8"
Flange thickness (tf)9/16"
k (detailing)1 1/4"
Workable gage (g)3 1/2"

Section properties

Weight50 lb/ft
Area (A)14.7 in²
Ix800 in⁴
Sx88.9 in³
Zx101 in³
rx7.38 in
Iy40.1 in⁴
Sy10.7 in³
Zy16.6 in³
ry1.65 in
J1.24 in⁴

Detailing values are rounded to the nearest 1/16 in. per the AISC Steel Construction Manual. Verify critical dimensions against the current Manual before fabrication. Need W18×50 cut, formed, or fabricated? Huntington Steel & Supply Co.

Interactive drawing