Rectangular and square HSS

HSS 406x305x13

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 = 12.7t = 12.7
Cross-section, to scaledimensions in mm

Dimensions

Depthd
406.4mm
Widthb
304.8mm
Thicknesst
12.7mm
Outside corner radiusro
25.4mm

Mass and area

Mass per lengthm
133.5kg/m
Cross-sectional areaA
17,004mm²
Outside perimeterP
1,379mm

Strong axis x–x

Moment of inertiaIx
400.410⁶ mm⁴
Elastic section modulusSx
1,97110³ mm³
Plastic section modulusZx
2,36210³ mm³
Radius of gyrationrx
153.5mm

Weak axis y–y

Moment of inertiaIy
257.210⁶ mm⁴
Elastic section modulusSy
1,68710³ mm³
Plastic section modulusZy
1,94110³ mm³
Radius of gyrationry
123mm

Torsion and stability

Torsional constantJ
499,97710³ mm⁴

Equivalents in other standards