Double angles (2L)

2L4X4X1/4X3/8 2L102X102X6.4X9

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 = 8.425d = 4t = 0.25t = 0.25
Cross-section, to scaledimensions in inches

Dimensions

Depthd
4in
Widthb
4in
Thicknesst
0.25in

Mass and area

Mass per lengthm
13.2lb/ft
Cross-sectional areaA
3.86in²

Strong axis x–x

Moment of inertiaIx
6in⁴
Elastic section modulusSx
2.06in³
Plastic section modulusZx
3.64in³
Radius of gyrationrx
1.25in

Weak axis y–y

Moment of inertiaIy
12.2in⁴
Elastic section modulusSy
2.91in³
Plastic section modulusZy
4.89in³
Radius of gyrationry
1.78in

Torsion and stability

Polar radius (shear center)r̄o
2.37in
Flexural constantH
0.838

Centers

Centroidȳ
1.08in
Plastic neutral axisyp
0.241in

Slenderness ratios

Wall slendernessb/t
16

Equivalents in other standards