Angles (L)

L8X4X3/4 L203X102X19

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.
xyb = 8d = 4t = 0.75t = 0.75
Cross-section, to scaledimensions in inches

Dimensions

Depthd
4in
Widthb
8in
Thicknesst
0.75in
Distance k (design)kdes
1.25in
Distance k (detailing)kdet
1.25in

Mass and area

Mass per lengthm
28.7lb/ft
Cross-sectional areaA
8.49in²

Strong axis x–x

Moment of inertiaIx
55in⁴
Elastic section modulusSx
10.9in³
Plastic section modulusZx
18.9in³
Radius of gyrationrx
2.55in

Weak axis y–y

Moment of inertiaIy
9.37in⁴
Elastic section modulusSy
3.07in³
Plastic section modulusZy
5.82in³
Radius of gyrationry
1.05in

Principal axes

Moment of inertia, minor principal axisIz
6.14in⁴
Section modulus, minor principal axisSz
2.65in³
Radius of gyration, minor principal axisrz
0.85in
Tangent of principal axis angletan α
0.257

Torsion and stability

Torsional constantJ
1.61in⁴
Warping constantCw
5.75in⁶
Polar radius (shear center)r̄o
3.8in

Centers

Centroidx̄
0.949in
Centroidȳ
2.94in
Plastic neutral axisxp
0.531in
Plastic neutral axisyp
2.34in

Slenderness ratios

Wall slendernessb/t
10.7

Equivalents in other standards