Double angles (2L)

2L4X3-1/2X5/16SLBB 2L102X89X7.9SLBB

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

Dimensions

Depthd
3.5in
Widthb
4in
Thicknesst
0.313in

Mass and area

Mass per lengthm
15.4lb/ft
Cross-sectional areaA
4.5in²

Strong axis x–x

Moment of inertiaIx
5.05in⁴
Elastic section modulusSx
1.96in³
Plastic section modulusZx
3.48in³
Radius of gyrationrx
1.06in

Weak axis y–y

Moment of inertiaIy
13.3in⁴
Elastic section modulusSy
3.32in³
Plastic section modulusZy
5.26in³
Radius of gyrationry
1.72in

Torsion and stability

Polar radius (shear center)r̄o
2.16in
Flexural constantH
0.874

Centers

Centroidȳ
0.923in
Plastic neutral axisyp
0.281in

Slenderness ratios

Wall slendernessb/t
12.8

Equivalents in other standards