Double angles (2L)

2L8X8X5/8X3/8 2L203X203X15.9X9

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 = 8t = 0.625t = 0.625
Cross-section, to scaledimensions in inches

Dimensions

Depthd
8in
Widthb
8in
Thicknesst
0.625in

Mass and area

Mass per lengthm
65.4lb/ft
Cross-sectional areaA
19.4in²

Strong axis x–x

Moment of inertiaIx
119in⁴
Elastic section modulusSx
20.6in³
Plastic section modulusZx
37.2in³
Radius of gyrationrx
2.48in

Weak axis y–y

Moment of inertiaIy
231in⁴
Elastic section modulusSy
28.2in³
Plastic section modulusZy
46.5in³
Radius of gyrationry
3.45in

Torsion and stability

Polar radius (shear center)r̄o
4.66in
Flexural constantH
0.833

Centers

Centroidȳ
2.21in
Plastic neutral axisyp
0.606in

Slenderness ratios

Wall slendernessb/t
12.8

Equivalents in other standards