Double angles (2L)

2L7X4X1/2LLBB 2L178X102X12.7LLBB

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 = 0.5t = 0.5
Cross-section, to scaledimensions in inches

Dimensions

Depthd
7in
Widthb
4in
Thicknesst
0.5in

Mass and area

Mass per lengthm
35.8lb/ft
Cross-sectional areaA
10.5in²

Strong axis x–x

Moment of inertiaIx
53.2in⁴
Elastic section modulusSx
11.6in³
Plastic section modulusZx
20.4in³
Radius of gyrationrx
2.25in

Weak axis y–y

Moment of inertiaIy
21.8in⁴
Elastic section modulusSy
5.45in³
Plastic section modulusZy
9.57in³
Radius of gyrationry
1.44in

Torsion and stability

Polar radius (shear center)r̄o
3.43in
Flexural constantH
0.606

Centers

Centroidȳ
2.4in
Plastic neutral axisyp
1.74in

Slenderness ratios

Wall slendernessb/t
14

Equivalents in other standards