ST tees
ST12X45 ST305X67
Values published by AISC, in US customary (original) and SI units.
Dimensions
- Depthd
- 12in
- Flange widthbf
- 7.13in
- Web thicknesstw
- 0.625in
- Flange thicknesstf
- 0.87in
- Distance k (design)kdes
- 1.75in
- Distance k (detailing)kdet
- 1.75in
Mass and area
- Mass per lengthm
- 45lb/ft
- Cross-sectional areaA
- 13.2in²
Strong axis x–x
- Moment of inertiaIx
- 190in⁴
- Elastic section modulusSx
- 22.6in³
- Plastic section modulusZx
- 41.1in³
- Radius of gyrationrx
- 3.79in
Weak axis y–y
- Moment of inertiaIy
- 22.3in⁴
- Elastic section modulusSy
- 6.27in³
- Plastic section modulusZy
- 11.2in³
- Radius of gyrationry
- 1.3in
Torsion and stability
- Torsional constantJ
- 3.01in⁴
- Warping constantCw
- 12.1in⁶
- Polar radius (shear center)r̄o
- 5.11in
- Flexural constantH
- 0.615
Centers
- Centroidȳ
- 3.6in
- Plastic neutral axisyp
- 1.42in
Slenderness ratios
- Flange slendernessbf/2tf
- 4.1
- Wall slendernessD/t
- 19.2