Rectangular and square HSS

HSS 305x203x9.5

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 = 203.2d = 304.8t = 9.52t = 9.52
Cross-section, to scaledimensions in mm

Dimensions

Depthd
304.8mm
Widthb
203.2mm
Thicknesst
9.52mm
Outside corner radiusro
19.05mm

Mass and area

Mass per lengthm
71.25kg/m
Cross-sectional areaA
9,076mm²
Outside perimeterP
983.3mm

Strong axis x–x

Moment of inertiaIx
116.110⁶ mm⁴
Elastic section modulusSx
761.710³ mm³
Plastic section modulusZx
924.710³ mm³
Radius of gyrationrx
113.1mm

Weak axis y–y

Moment of inertiaIy
62.0510⁶ mm⁴
Elastic section modulusSy
610.710³ mm³
Plastic section modulusZy
700.110³ mm³
Radius of gyrationry
82.69mm

Torsion and stability

Torsional constantJ
130,11110³ mm⁴

Equivalents in other standards