Double angles (2L)

2L8X4X1/2X3/4LLBB 2L203X102X12.7X19LLBB

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

Dimensions

Depthd
8in
Widthb
4in
Thicknesst
0.5in

Mass and area

Mass per lengthm
39.2lb/ft
Cross-sectional areaA
11.6in²

Strong axis x–x

Moment of inertiaIx
77.2in⁴
Elastic section modulusSx
15in³
Plastic section modulusZx
26.2in³
Radius of gyrationrx
2.58in

Weak axis y–y

Moment of inertiaIy
30.8in⁴
Elastic section modulusSy
7.04in³
Plastic section modulusZy
14.3in³
Radius of gyrationry
1.63in

Torsion and stability

Polar radius (shear center)r̄o
4in
Flexural constantH
0.583

Centers

Centroidȳ
2.84in
Plastic neutral axisyp
2.2in

Slenderness ratios

Wall slendernessb/t
16

Equivalents in other standards