Double angles (2L)

2L3-1/2X3X1/2LLBB 2L89X76X12.7LLBB

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 = 0.5t = 0.5
Cross-section, to scaledimensions in inches

Dimensions

Depthd
3.5in
Widthb
3in
Thicknesst
0.5in

Mass and area

Mass per lengthm
20.4lb/ft
Cross-sectional areaA
6.04in²

Strong axis x–x

Moment of inertiaIx
6.9in⁴
Elastic section modulusSx
2.9in³
Plastic section modulusZx
5.22in³
Radius of gyrationrx
1.07in

Weak axis y–y

Moment of inertiaIy
9.14in⁴
Elastic section modulusSy
3.05in³
Plastic section modulusZy
5.25in³
Radius of gyrationry
1.23in

Torsion and stability

Polar radius (shear center)r̄o
1.85in
Flexural constantH
0.78

Centers

Centroidȳ
1.12in
Plastic neutral axisyp
0.48in

Slenderness ratios

Wall slendernessb/t
7

Equivalents in other standards