Rectangular and square HSS

HSS 406x305x8.0

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 = 406.4t = 7.94t = 7.94
Cross-section, to scaledimensions in mm

Dimensions

Depthd
406.4mm
Widthb
304.8mm
Thicknesst
7.94mm
Outside corner radiusro
15.88mm

Mass and area

Mass per lengthm
85.4kg/m
Cross-sectional areaA
10,879mm²
Outside perimeterP
1,395mm

Strong axis x–x

Moment of inertiaIx
264.410⁶ mm⁴
Elastic section modulusSx
1,30110³ mm³
Plastic section modulusZx
1,53710³ mm³
Radius of gyrationrx
155.9mm

Weak axis y–y

Moment of inertiaIy
170.410⁶ mm⁴
Elastic section modulusSy
1,11810³ mm³
Plastic section modulusZy
1,26510³ mm³
Radius of gyrationry
125.2mm

Torsion and stability

Torsional constantJ
323,88010³ mm⁴

Equivalents in other standards