W shapes (wide flange)

W36X318 W920X474

Standard: AISC Shapes Database v16.0Source: AISC (aisc.org) — Shapes Database v16.0 (Excel file)
Values published by AISC, in US customary (original) and SI units.
xybf = 12.4d = 38.2tf = 2.13tf = 2.13tw = 1.18tw = 1.18
Cross-section, to scaledimensions in inches

Dimensions

Depthd
38.2in
Flange widthbf
12.4in
Web thicknesstw
1.18in
Flange thicknesstf
2.13in
Distance k (design)kdes
2.88in
Distance k (detailing)kdet
3.375in
Distance k1k1
1.813in
Web clear depthT
31.5in
Distance between flange centroidsho
36.1in

Mass and area

Mass per lengthm
318lb/ft
Cross-sectional areaA
93.4in²

Strong axis x–x

Moment of inertiaIx
21,200in⁴
Elastic section modulusSx
1,110in³
Plastic section modulusZx
1,300in³
Radius of gyrationrx
15.1in

Weak axis y–y

Moment of inertiaIy
682in⁴
Elastic section modulusSy
110in³
Plastic section modulusZy
176in³
Radius of gyrationry
2.7in

Torsion and stability

Torsional constantJ
98.3in⁴
Warping constantCw
222,000in⁶
Effective radius of gyrationrts
3.33in

Slenderness ratios

Flange slendernessbf/2tf
2.91
Web slendernessh/tw
27.5

Equivalents in other standards