Angles (L)

L4X3X5/8 L102X76X15.9

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 = 4d = 3t = 0.625t = 0.625
Cross-section, to scaledimensions in inches

Dimensions

Depthd
3in
Widthb
4in
Thicknesst
0.625in
Distance k (design)kdes
1in
Distance k (detailing)kdet
1in

Mass and area

Mass per lengthm
13.6lb/ft
Cross-sectional areaA
3.99in²

Strong axis x–x

Moment of inertiaIx
6.01in⁴
Elastic section modulusSx
2.28in³
Plastic section modulusZx
4.08in³
Radius of gyrationrx
1.23in

Weak axis y–y

Moment of inertiaIy
2.85in⁴
Elastic section modulusSy
1.34in³
Plastic section modulusZy
2.45in³
Radius of gyrationry
0.845in

Principal axes

Moment of inertia, minor principal axisIz
1.59in⁴
Section modulus, minor principal axisSz
1.13in³
Radius of gyration, minor principal axisrz
0.631in
Tangent of principal axis angletan α
0.534

Torsion and stability

Torsional constantJ
0.529in⁴
Warping constantCw
0.472in⁶
Polar radius (shear center)r̄o
1.91in

Centers

Centroidx̄
0.867in
Centroidȳ
1.37in
Plastic neutral axisxp
0.499in
Plastic neutral axisyp
0.808in

Slenderness ratios

Wall slendernessb/t
6.4

Equivalents in other standards