Angles (L)

L4X4X3/4 L102X102X19

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 = 4t = 0.75t = 0.75
Cross-section, to scaledimensions in inches

Dimensions

Depthd
4in
Widthb
4in
Thicknesst
0.75in
Distance k (design)kdes
1.13in
Distance k (detailing)kdet
1.125in

Mass and area

Mass per lengthm
18.5lb/ft
Cross-sectional areaA
5.44in²

Strong axis x–x

Moment of inertiaIx
7.62in⁴
Elastic section modulusSx
2.79in³
Plastic section modulusZx
5.02in³
Radius of gyrationrx
1.18in

Weak axis y–y

Moment of inertiaIy
7.62in⁴
Elastic section modulusSy
2.79in³
Plastic section modulusZy
5.02in³
Radius of gyrationry
1.18in

Principal axes

Moment of inertia, minor principal axisIz
3.25in⁴
Section modulus, minor principal axisSz
1.81in³
Radius of gyration, minor principal axisrz
0.774in
Tangent of principal axis angletan α
1

Torsion and stability

Torsional constantJ
1.02in⁴
Warping constantCw
1.12in⁶
Polar radius (shear center)r̄o
2.1in
Flexural constantH
0.64

Centers

Centroidx̄
1.27in
Centroidȳ
1.27in
Plastic neutral axisxp
0.68in
Plastic neutral axisyp
0.68in

Slenderness ratios

Wall slendernessb/t
5.33

Equivalents in other standards