Angles (L)

L4X3-1/2X5/16 L102X89X7.9

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 = 3.5t = 0.313t = 0.313
Cross-section, to scaledimensions in inches

Dimensions

Depthd
3.5in
Widthb
4in
Thicknesst
0.313in
Distance k (design)kdes
0.688in
Distance k (detailing)kdet
0.6875in

Mass and area

Mass per lengthm
7.7lb/ft
Cross-sectional areaA
2.25in²

Strong axis x–x

Moment of inertiaIx
3.53in⁴
Elastic section modulusSx
1.25in³
Plastic section modulusZx
2.24in³
Radius of gyrationrx
1.25in

Weak axis y–y

Moment of inertiaIy
2.52in⁴
Elastic section modulusSy
0.98in³
Plastic section modulusZy
1.74in³
Radius of gyrationry
1.06in

Principal axes

Moment of inertia, minor principal axisIz
1.16in⁴
Section modulus, minor principal axisSz
0.806in³
Radius of gyration, minor principal axisrz
0.721in
Tangent of principal axis angletan α
0.757

Torsion and stability

Torsional constantJ
0.0782in⁴
Warping constantCw
0.0798in⁶
Polar radius (shear center)r̄o
2.08in

Centers

Centroidx̄
0.923in
Centroidȳ
1.17in
Plastic neutral axisxp
0.281in
Plastic neutral axisyp
0.4in

Slenderness ratios

Wall slendernessb/t
12.8

Equivalents in other standards