Double angles (2L)

2L3X3X5/16 2L76X76X7.9

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 = 6.394d = 3t = 0.313t = 0.313
Cross-section, to scaledimensions in inches

Dimensions

Depthd
3in
Widthb
3in
Thicknesst
0.313in

Mass and area

Mass per lengthm
12.2lb/ft
Cross-sectional areaA
3.56in²

Strong axis x–x

Moment of inertiaIx
3in⁴
Elastic section modulusSx
1.4in³
Plastic section modulusZx
2.52in³
Radius of gyrationrx
0.918in

Weak axis y–y

Moment of inertiaIy
5.65in⁴
Elastic section modulusSy
1.88in³
Plastic section modulusZy
3.06in³
Radius of gyrationry
1.26in

Torsion and stability

Polar radius (shear center)r̄o
1.71in
Flexural constantH
0.83

Centers

Centroidȳ
0.86in
Plastic neutral axisyp
0.297in

Slenderness ratios

Wall slendernessb/t
9.58

Equivalents in other standards