Rectangular and square HSS

HSS 305x305x4.8

Standard: CSA G40.20/G40.21Source: Calculated (exact engine)
Calculated: design thickness = nominal thickness (CSA G40.20, Class C), outside radius 2t. Range derived from ASTM A500 sizes — cross-check with the CISC tables.
xyb = 304.8d = 304.8t = 4.76t = 4.76
Cross-section, to scaledimensions in mm

Dimensions

Depthd
304.8mm
Widthb
304.8mm
Thicknesst
4.76mm
Outside corner radiusro
9.52mm

Mass and area

Mass per lengthm
44.39kg/m
Cross-sectional areaA
5,654mm²
Outside perimeterP
1,203mm

Strong axis x–x

Moment of inertiaIx
84.410⁶ mm⁴
Elastic section modulusSx
553.810³ mm³
Plastic section modulusZx
63410³ mm³
Radius of gyrationrx
122.2mm

Weak axis y–y

Moment of inertiaIy
84.410⁶ mm⁴
Elastic section modulusSy
553.810³ mm³
Plastic section modulusZy
63410³ mm³
Radius of gyrationry
122.2mm

Torsion and stability

Torsional constantJ
129,81510³ mm⁴

Equivalents in other standards