Double angles (2L)

2L7X4X5/8LLBB 2L178X102X15.9LLBB

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 = 0.625t = 0.625
Cross-section, to scaledimensions in inches

Dimensions

Depthd
7in
Widthb
4in
Thicknesst
0.625in

Mass and area

Mass per lengthm
44.2lb/ft
Cross-sectional areaA
13in²

Strong axis x–x

Moment of inertiaIx
64.8in⁴
Elastic section modulusSx
14.2in³
Plastic section modulusZx
25in³
Radius of gyrationrx
2.23in

Weak axis y–y

Moment of inertiaIy
27.3in⁴
Elastic section modulusSy
6.82in³
Plastic section modulusZy
12.5in³
Radius of gyrationry
1.45in

Torsion and stability

Polar radius (shear center)r̄o
3.42in
Flexural constantH
0.608

Centers

Centroidȳ
2.45in
Plastic neutral axisyp
1.8in

Slenderness ratios

Wall slendernessb/t
11.2

Equivalents in other standards