Double angles (2L)

2L8X4X7/8SLBB 2L203X102X22.2SLBB

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 = 0.875t = 0.875
Cross-section, to scaledimensions in inches

Dimensions

Depthd
4in
Widthb
8in
Thicknesst
0.875in

Mass and area

Mass per lengthm
66.2lb/ft
Cross-sectional areaA
19.6in²

Strong axis x–x

Moment of inertiaIx
21.1in⁴
Elastic section modulusSx
7.02in³
Plastic section modulusZx
13.5in³
Radius of gyrationrx
1.04in

Weak axis y–y

Moment of inertiaIy
300in⁴
Elastic section modulusSy
37.5in³
Plastic section modulusZy
58.5in³
Radius of gyrationry
3.91in

Torsion and stability

Polar radius (shear center)r̄o
4.09in
Flexural constantH
0.981

Centers

Centroidȳ
0.997in
Plastic neutral axisyp
0.612in

Slenderness ratios

Wall slendernessb/t
9.14

Equivalents in other standards