Double angles (2L)

2L12X12X1-1/4 2L305X305X31.8

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 = 1.25t = 1.25
Cross-section, to scaledimensions in inches

Dimensions

Depthd
12in
Widthb
12in
Thicknesst
1.25in

Mass and area

Mass per lengthm
193lb/ft
Cross-sectional areaA
56.8in²

Strong axis x–x

Moment of inertiaIx
762in⁴
Elastic section modulusSx
89.2in³
Plastic section modulusZx
161in³
Radius of gyrationrx
3.66in

Weak axis y–y

Moment of inertiaIy
1,440in⁴
Elastic section modulusSy
120in³
Plastic section modulusZy
196in³
Radius of gyrationry
5.04in

Torsion and stability

Polar radius (shear center)r̄o
6.84in
Flexural constantH
0.829

Centers

Centroidȳ
3.45in
Plastic neutral axisyp
1.18in

Slenderness ratios

Wall slendernessb/t
9.6

Equivalents in other standards