S shapes (American standard beams)

S15X42.9 S380X64

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 = 5.5d = 15tf = 0.622tf = 0.622tw = 0.411tw = 0.411
Cross-section, to scaledimensions in inches

Dimensions

Depthd
15in
Flange widthbf
5.5in
Web thicknesstw
0.411in
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
42.9lb/ft
Cross-sectional areaA
12.6in²

Strong axis x–x

Moment of inertiaIx
446in⁴
Elastic section modulusSx
59.4in³
Plastic section modulusZx
69.2in³
Radius of gyrationrx
5.95in

Weak axis y–y

Moment of inertiaIy
14.3in⁴
Elastic section modulusSy
5.19in³
Plastic section modulusZy
9.08in³
Radius of gyrationry
1.06in

Torsion and stability

Torsional constantJ
1.54in⁴
Warping constantCw
737in⁶
Effective radius of gyrationrts
1.31in

Slenderness ratios

Flange slendernessbf/2tf
4.42
Web slendernessh/tw
30.4

Equivalents in other standards