Double angles (2L)

2L4X3X5/8LLBB 2L102X76X15.9LLBB

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.
xy2b + s = 6.394d = 4t = 0.625t = 0.625
Cross-section, to scaledimensions in inches

Dimensions

Depthd
4in
Widthb
3in
Thicknesst
0.625in

Mass and area

Mass per lengthm
27.2lb/ft
Cross-sectional areaA
7.98in²

Strong axis x–x

Moment of inertiaIx
12in⁴
Elastic section modulusSx
4.56in³
Plastic section modulusZx
8.16in³
Radius of gyrationrx
1.23in

Weak axis y–y

Moment of inertiaIy
11.7in⁴
Elastic section modulusSy
3.9in³
Plastic section modulusZy
6.92in³
Radius of gyrationry
1.21in

Torsion and stability

Polar radius (shear center)r̄o
2.02in
Flexural constantH
0.728

Centers

Centroidȳ
1.37in
Plastic neutral axisyp
0.808in

Slenderness ratios

Wall slendernessb/t
6.4

Equivalents in other standards