Double angles (2L)

2L8X4X9/16LLBB 2L203X102X14.3LLBB

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 = 0.563t = 0.563
Cross-section, to scaledimensions in inches

Dimensions

Depthd
8in
Widthb
4in
Thicknesst
0.563in

Mass and area

Mass per lengthm
43.8lb/ft
Cross-sectional areaA
13in²

Strong axis x–x

Moment of inertiaIx
85.8in⁴
Elastic section modulusSx
16.7in³
Plastic section modulusZx
29.2in³
Radius of gyrationrx
2.57in

Weak axis y–y

Moment of inertiaIy
24.8in⁴
Elastic section modulusSy
6.2in³
Plastic section modulusZy
11.4in³
Radius of gyrationry
1.38in

Torsion and stability

Polar radius (shear center)r̄o
3.9in
Flexural constantH
0.562

Centers

Centroidȳ
2.86in
Plastic neutral axisyp
2.23in

Slenderness ratios

Wall slendernessb/t
14.2

Equivalents in other standards