Double angles (2L)

2L8X4X3/4LLBB 2L203X102X19LLBB

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 = 0.75t = 0.75
Cross-section, to scaledimensions in inches

Dimensions

Depthd
8in
Widthb
4in
Thicknesst
0.75in

Mass and area

Mass per lengthm
57.4lb/ft
Cross-sectional areaA
17in²

Strong axis x–x

Moment of inertiaIx
110in⁴
Elastic section modulusSx
21.8in³
Plastic section modulusZx
37.8in³
Radius of gyrationrx
2.55in

Weak axis y–y

Moment of inertiaIy
34.3in⁴
Elastic section modulusSy
8.57in³
Plastic section modulusZy
16.1in³
Radius of gyrationry
1.42in

Torsion and stability

Polar radius (shear center)r̄o
3.88in
Flexural constantH
0.564

Centers

Centroidȳ
2.94in
Plastic neutral axisyp
2.34in

Slenderness ratios

Wall slendernessb/t
10.7

Equivalents in other standards