Rectangular and square HSS

HSS 406x305x9.5

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 = 304.8d = 406.4t = 9.52t = 9.52
Cross-section, to scaledimensions in mm

Dimensions

Depthd
406.4mm
Widthb
304.8mm
Thicknesst
9.52mm
Outside corner radiusro
19.05mm

Mass and area

Mass per lengthm
101.6kg/m
Cross-sectional areaA
12,945mm²
Outside perimeterP
1,390mm

Strong axis x–x

Moment of inertiaIx
311.310⁶ mm⁴
Elastic section modulusSx
1,53210³ mm³
Plastic section modulusZx
1,81910³ mm³
Radius of gyrationrx
155.1mm

Weak axis y–y

Moment of inertiaIy
200.510⁶ mm⁴
Elastic section modulusSy
1,31510³ mm³
Plastic section modulusZy
1,49610³ mm³
Radius of gyrationry
124.4mm

Torsion and stability

Torsional constantJ
383,84310³ mm⁴

Equivalents in other standards