S shapes (American standard beams)

S8X23 S200X34

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 = 4.17d = 8tf = 0.425tf = 0.425tw = 0.441tw = 0.441
Cross-section, to scaledimensions in inches

Dimensions

Depthd
8in
Flange widthbf
4.17in
Web thicknesstw
0.441in
Flange thicknesstf
0.425in
Distance k (design)kdes
1in
Distance k (detailing)kdet
1in
Web clear depthT
6in
Distance between flange centroidsho
7.58in

Mass and area

Mass per lengthm
23lb/ft
Cross-sectional areaA
6.76in²

Strong axis x–x

Moment of inertiaIx
64.7in⁴
Elastic section modulusSx
16.2in³
Plastic section modulusZx
19.2in³
Radius of gyrationrx
3.09in

Weak axis y–y

Moment of inertiaIy
4.27in⁴
Elastic section modulusSy
2.05in³
Plastic section modulusZy
3.67in³
Radius of gyrationry
0.795in

Torsion and stability

Torsional constantJ
0.55in⁴
Warping constantCw
61.2in⁶
Effective radius of gyrationrts
0.999in

Slenderness ratios

Flange slendernessbf/2tf
4.91
Web slendernessh/tw
14.1

Equivalents in other standards