Double angles (2L)

2L4X4X3/4X3/4 2L102X102X19X19

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 = 0.75t = 0.75
Cross-section, to scaledimensions in inches

Dimensions

Depthd
4in
Widthb
4in
Thicknesst
0.75in

Mass and area

Mass per lengthm
37lb/ft
Cross-sectional areaA
10.9in²

Strong axis x–x

Moment of inertiaIx
15.2in⁴
Elastic section modulusSx
5.58in³
Plastic section modulusZx
10in³
Radius of gyrationrx
1.18in

Weak axis y–y

Moment of inertiaIy
44.9in⁴
Elastic section modulusSy
10.3in³
Plastic section modulusZy
17.9in³
Radius of gyrationry
2.03in

Torsion and stability

Polar radius (shear center)r̄o
2.51in
Flexural constantH
0.874

Centers

Centroidȳ
1.27in
Plastic neutral axisyp
0.68in

Slenderness ratios

Wall slendernessb/t
5.33

Equivalents in other standards