Double angles (2L)

2L8X4X3/4SLBB 2L203X102X19SLBB

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

Dimensions

Depthd
4in
Widthb
8in
Thicknesst
0.75in

Mass and area

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

Strong axis x–x

Moment of inertiaIx
18.7in⁴
Elastic section modulusSx
6.14in³
Plastic section modulusZx
11.6in³
Radius of gyrationrx
1.05in

Weak axis y–y

Moment of inertiaIy
257in⁴
Elastic section modulusSy
32.1in³
Plastic section modulusZy
49.9in³
Radius of gyrationry
3.89in

Torsion and stability

Polar radius (shear center)r̄o
4.07in
Flexural constantH
0.98

Centers

Centroidȳ
0.949in
Plastic neutral axisyp
0.531in

Slenderness ratios

Wall slendernessb/t
10.7

Equivalents in other standards