Double angles (2L)

2L4X3X1/4SLBB 2L102X76X6.4SLBB

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 = 8.425d = 3t = 0.25t = 0.25
Cross-section, to scaledimensions in inches

Dimensions

Depthd
3in
Widthb
4in
Thicknesst
0.25in

Mass and area

Mass per lengthm
11.6lb/ft
Cross-sectional areaA
3.38in²

Strong axis x–x

Moment of inertiaIx
2.66in⁴
Elastic section modulusSx
1.17in³
Plastic section modulusZx
2.06in³
Radius of gyrationrx
0.887in

Weak axis y–y

Moment of inertiaIy
10.5in⁴
Elastic section modulusSy
2.62in³
Plastic section modulusZy
4.12in³
Radius of gyrationry
1.76in

Torsion and stability

Polar radius (shear center)r̄o
2.06in
Flexural constantH
0.915

Centers

Centroidȳ
0.725in
Plastic neutral axisyp
0.211in

Slenderness ratios

Wall slendernessb/t
16

Equivalents in other standards