Double angles (2L)

2L8X4X5/8SLBB 2L203X102X15.9SLBB

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

Dimensions

Depthd
4in
Widthb
8in
Thicknesst
0.625in

Mass and area

Mass per lengthm
48.4lb/ft
Cross-sectional areaA
14.3in²

Strong axis x–x

Moment of inertiaIx
16.2in⁴
Elastic section modulusSx
5.23in³
Plastic section modulusZx
9.73in³
Radius of gyrationrx
1.06in

Weak axis y–y

Moment of inertiaIy
213in⁴
Elastic section modulusSy
26.6in³
Plastic section modulusZy
41.4in³
Radius of gyrationry
3.86in

Torsion and stability

Polar radius (shear center)r̄o
4.05in
Flexural constantH
0.979

Centers

Centroidȳ
0.902in
Plastic neutral axisyp
0.448in

Slenderness ratios

Wall slendernessb/t
12.8

Equivalents in other standards