Double angles (2L)

2L3-1/2X3X5/16LLBB 2L89X76X7.9LLBB

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

Dimensions

Depthd
3.5in
Widthb
3in
Thicknesst
0.313in

Mass and area

Mass per lengthm
13.2lb/ft
Cross-sectional areaA
3.9in²

Strong axis x–x

Moment of inertiaIx
4.66in⁴
Elastic section modulusSx
1.9in³
Plastic section modulusZx
3.44in³
Radius of gyrationrx
1.09in

Weak axis y–y

Moment of inertiaIy
5.62in⁴
Elastic section modulusSy
1.87in³
Plastic section modulusZy
3.11in³
Radius of gyrationry
1.2in

Torsion and stability

Polar radius (shear center)r̄o
1.85in
Flexural constantH
0.77

Centers

Centroidȳ
1.05in
Plastic neutral axisyp
0.38in

Slenderness ratios

Wall slendernessb/t
11.2

Equivalents in other standards