Rectangular and square HSS

HSS 406x254x9.5

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 = 254d = 406.4t = 9.52t = 9.52
Cross-section, to scaledimensions in mm

Dimensions

Depthd
406.4mm
Widthb
254mm
Thicknesst
9.52mm
Outside corner radiusro
19.05mm

Mass and area

Mass per lengthm
94.03kg/m
Cross-sectional areaA
11,978mm²
Outside perimeterP
1,288mm

Strong axis x–x

Moment of inertiaIx
273.210⁶ mm⁴
Elastic section modulusSx
1,34510³ mm³
Plastic section modulusZx
1,62710³ mm³
Radius of gyrationrx
151mm

Weak axis y–y

Moment of inertiaIy
132.610⁶ mm⁴
Elastic section modulusSy
1,04410³ mm³
Plastic section modulusZy
1,17910³ mm³
Radius of gyrationry
105.2mm

Torsion and stability

Torsional constantJ
284,27410³ mm⁴

Equivalents in other standards