Double angles (2L)

2L12X12X1-3/8 2L305X305X34.9

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 = 24.41d = 12t = 1.38t = 1.38
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12in
Widthb
12in
Thicknesst
1.38in

Mass and area

Mass per lengthm
210lb/ft
Cross-sectional areaA
62.2in²

Strong axis x–x

Moment of inertiaIx
826in⁴
Elastic section modulusSx
97.2in³
Plastic section modulusZx
176in³
Radius of gyrationrx
3.64in

Weak axis y–y

Moment of inertiaIy
1,590in⁴
Elastic section modulusSy
133in³
Plastic section modulusZy
218in³
Radius of gyrationry
5.06in

Torsion and stability

Polar radius (shear center)r̄o
6.84in
Flexural constantH
0.831

Centers

Centroidȳ
3.5in
Plastic neutral axisyp
1.3in

Slenderness ratios

Wall slendernessb/t
8.7

Equivalents in other standards