S shapes (American standard beams)

S15X50 S380X74

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 = 5.64d = 15tf = 0.622tf = 0.622tw = 0.55tw = 0.55
Cross-section, to scaledimensions in inches

Dimensions

Depthd
15in
Flange widthbf
5.64in
Web thicknesstw
0.55in
Flange thicknesstf
0.622in
Distance k (design)kdes
1.38in
Distance k (detailing)kdet
1.375in
Web clear depthT
12.25in
Distance between flange centroidsho
14.4in

Mass and area

Mass per lengthm
50lb/ft
Cross-sectional areaA
14.7in²

Strong axis x–x

Moment of inertiaIx
485in⁴
Elastic section modulusSx
64.7in³
Plastic section modulusZx
77in³
Radius of gyrationrx
5.75in

Weak axis y–y

Moment of inertiaIy
15.6in⁴
Elastic section modulusSy
5.53in³
Plastic section modulusZy
10in³
Radius of gyrationry
1.03in

Torsion and stability

Torsional constantJ
2.12in⁴
Warping constantCw
805in⁶
Effective radius of gyrationrts
1.32in

Slenderness ratios

Flange slendernessbf/2tf
4.53
Web slendernessh/tw
22.7

Equivalents in other standards