Double angles (2L)

2L4X3X1/2X3/8LLBB 2L102X76X12.7X9LLBB

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

Dimensions

Depthd
4in
Widthb
3in
Thicknesst
0.5in

Mass and area

Mass per lengthm
22.2lb/ft
Cross-sectional areaA
6.5in²

Strong axis x–x

Moment of inertiaIx
10in⁴
Elastic section modulusSx
3.74in³
Plastic section modulusZx
6.72in³
Radius of gyrationrx
1.24in

Weak axis y–y

Moment of inertiaIy
11.3in⁴
Elastic section modulusSy
3.55in³
Plastic section modulusZy
6.56in³
Radius of gyrationry
1.32in

Torsion and stability

Polar radius (shear center)r̄o
2.11in
Flexural constantH
0.743

Centers

Centroidȳ
1.32in
Plastic neutral axisyp
0.75in

Slenderness ratios

Wall slendernessb/t
8

Equivalents in other standards