Double angles (2L)

2L3-1/2X3X7/16SLBB 2L89X76X11.1SLBB

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 = 7.394d = 3t = 0.438t = 0.438
Cross-section, to scaledimensions in inches

Dimensions

Depthd
3in
Widthb
3.5in
Thicknesst
0.438in

Mass and area

Mass per lengthm
18.2lb/ft
Cross-sectional areaA
5.34in²

Strong axis x–x

Moment of inertiaIx
4.18in⁴
Elastic section modulusSx
1.94in³
Plastic section modulusZx
3.49in³
Radius of gyrationrx
0.885in

Weak axis y–y

Moment of inertiaIy
12.7in⁴
Elastic section modulusSy
3.63in³
Plastic section modulusZy
5.82in³
Radius of gyrationry
1.54in

Torsion and stability

Polar radius (shear center)r̄o
1.88in
Flexural constantH
0.889

Centers

Centroidȳ
0.846in
Plastic neutral axisyp
0.381in

Slenderness ratios

Wall slendernessb/t
7.99

Equivalents in other standards