Double angles (2L)

2L8X4X9/16SLBB 2L203X102X14.3SLBB

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 = 16.38d = 4t = 0.563t = 0.563
Cross-section, to scaledimensions in inches

Dimensions

Depthd
4in
Widthb
8in
Thicknesst
0.563in

Mass and area

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

Strong axis x–x

Moment of inertiaIx
14.9in⁴
Elastic section modulusSx
4.77in³
Plastic section modulusZx
8.77in³
Radius of gyrationrx
1.07in

Weak axis y–y

Moment of inertiaIy
193in⁴
Elastic section modulusSy
24.1in³
Plastic section modulusZy
37.1in³
Radius of gyrationry
3.85in

Torsion and stability

Polar radius (shear center)r̄o
4.04in
Flexural constantH
0.978

Centers

Centroidȳ
0.878in
Plastic neutral axisyp
0.406in

Slenderness ratios

Wall slendernessb/t
14.2

Equivalents in other standards