Rectangular and square HSS

HSS 406x406x25

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 = 406.4d = 406.4t = 25.4t = 25.4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
406.4mm
Widthb
406.4mm
Thicknesst
25.4mm
Outside corner radiusro
50.8mm

Mass and area

Mass per lengthm
290.8kg/m
Cross-sectional areaA
37,048mm²
Outside perimeterP
1,538mm

Strong axis x–x

Moment of inertiaIx
875.410⁶ mm⁴
Elastic section modulusSx
4,30810³ mm³
Plastic section modulusZx
5,20910³ mm³
Radius of gyrationrx
153.7mm

Weak axis y–y

Moment of inertiaIy
875.410⁶ mm⁴
Elastic section modulusSy
4,30810³ mm³
Plastic section modulusZy
5,20910³ mm³
Radius of gyrationry
153.7mm

Torsion and stability

Torsional constantJ
1,450,66010³ mm⁴

Equivalents in other standards