Double angles (2L)

2L4X4X5/16X3/8 2L102X102X7.9X9

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 = 8.425d = 4t = 0.313t = 0.313
Cross-section, to scaledimensions in inches

Dimensions

Depthd
4in
Widthb
4in
Thicknesst
0.313in

Mass and area

Mass per lengthm
16.4lb/ft
Cross-sectional areaA
4.8in²

Strong axis x–x

Moment of inertiaIx
7.34in⁴
Elastic section modulusSx
2.54in³
Plastic section modulusZx
4.52in³
Radius of gyrationrx
1.24in

Weak axis y–y

Moment of inertiaIy
15.4in⁴
Elastic section modulusSy
3.68in³
Plastic section modulusZy
6.23in³
Radius of gyrationry
1.79in

Torsion and stability

Polar radius (shear center)r̄o
2.37in
Flexural constantH
0.84

Centers

Centroidȳ
1.11in
Plastic neutral axisyp
0.3in

Slenderness ratios

Wall slendernessb/t
12.8

Equivalents in other standards