Double angles (2L)

2L7X4X7/16X3/8LLBB 2L178X102X11.1X9LLBB

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 = 7t = 0.438t = 0.438
Cross-section, to scaledimensions in inches

Dimensions

Depthd
7in
Widthb
4in
Thicknesst
0.438in

Mass and area

Mass per lengthm
31.4lb/ft
Cross-sectional areaA
9.26in²

Strong axis x–x

Moment of inertiaIx
47.2in⁴
Elastic section modulusSx
10.2in³
Plastic section modulusZx
18.1in³
Radius of gyrationrx
2.26in

Weak axis y–y

Moment of inertiaIy
22.2in⁴
Elastic section modulusSy
5.3in³
Plastic section modulusZy
9.94in³
Radius of gyrationry
1.55in

Torsion and stability

Polar radius (shear center)r̄o
3.49in
Flexural constantH
0.617

Centers

Centroidȳ
2.38in
Plastic neutral axisyp
1.71in

Slenderness ratios

Wall slendernessb/t
16

Equivalents in other standards