Double angles (2L)

2L3-1/2X3X5/16SLBB 2L89X76X7.9SLBB

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 = 7.394d = 3t = 0.313t = 0.313
Cross-section, to scaledimensions in inches

Dimensions

Depthd
3in
Widthb
3.5in
Thicknesst
0.313in

Mass and area

Mass per lengthm
13.2lb/ft
Cross-sectional areaA
3.9in²

Strong axis x–x

Moment of inertiaIx
3.16in⁴
Elastic section modulusSx
1.44in³
Plastic section modulusZx
2.56in³
Radius of gyrationrx
0.9in

Weak axis y–y

Moment of inertiaIy
8.89in⁴
Elastic section modulusSy
2.54in³
Plastic section modulusZy
4.1in³
Radius of gyrationry
1.51in

Torsion and stability

Polar radius (shear center)r̄o
1.87in
Flexural constantH
0.883

Centers

Centroidȳ
0.798in
Plastic neutral axisyp
0.279in

Slenderness ratios

Wall slendernessb/t
11.2

Equivalents in other standards