S shapes (American standard beams)

S20X96 S510X143

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 = 7.2d = 20.3tf = 0.92tf = 0.92tw = 0.8tw = 0.8
Cross-section, to scaledimensions in inches

Dimensions

Depthd
20.3in
Flange widthbf
7.2in
Web thicknesstw
0.8in
Flange thicknesstf
0.92in
Distance k (design)kdes
1.75in
Distance k (detailing)kdet
1.75in
Web clear depthT
16.75in
Distance between flange centroidsho
19.4in

Mass and area

Mass per lengthm
96lb/ft
Cross-sectional areaA
28.2in²

Strong axis x–x

Moment of inertiaIx
1,670in⁴
Elastic section modulusSx
165in³
Plastic section modulusZx
198in³
Radius of gyrationrx
7.71in

Weak axis y–y

Moment of inertiaIy
49.9in⁴
Elastic section modulusSy
13.9in³
Plastic section modulusZy
24.9in³
Radius of gyrationry
1.33in

Torsion and stability

Torsional constantJ
8.4in⁴
Warping constantCw
4,690in⁶
Effective radius of gyrationrts
1.71in

Slenderness ratios

Flange slendernessbf/2tf
3.91
Web slendernessh/tw
21.1

Equivalents in other standards