Double angles (2L)

2L8X4X7/16X3/4LLBB 2L203X102X11.1X19LLBB

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 = 8t = 0.438t = 0.438
Cross-section, to scaledimensions in inches

Dimensions

Depthd
8in
Widthb
4in
Thicknesst
0.438in

Mass and area

Mass per lengthm
34.4lb/ft
Cross-sectional areaA
10.2in²

Strong axis x–x

Moment of inertiaIx
68.4in⁴
Elastic section modulusSx
13.2in³
Plastic section modulusZx
23.2in³
Radius of gyrationrx
2.59in

Weak axis y–y

Moment of inertiaIy
26.8in⁴
Elastic section modulusSy
6.13in³
Plastic section modulusZy
12.3in³
Radius of gyrationry
1.62in

Torsion and stability

Polar radius (shear center)r̄o
4in
Flexural constantH
0.582

Centers

Centroidȳ
2.81in
Plastic neutral axisyp
2.16in

Slenderness ratios

Wall slendernessb/t
18.3

Equivalents in other standards