Rectangular and square HSS

HSS 406x203x13

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 = 203.2d = 406.4t = 12.7t = 12.7
Cross-section, to scaledimensions in mm

Dimensions

Depthd
406.4mm
Widthb
203.2mm
Thicknesst
12.7mm
Outside corner radiusro
25.4mm

Mass and area

Mass per lengthm
113.2kg/m
Cross-sectional areaA
14,423mm²
Outside perimeterP
1,176mm

Strong axis x–x

Moment of inertiaIx
300.410⁶ mm⁴
Elastic section modulusSx
1,47810³ mm³
Plastic section modulusZx
1,85410³ mm³
Radius of gyrationrx
144.3mm

Weak axis y–y

Moment of inertiaIy
101.610⁶ mm⁴
Elastic section modulusSy
1,00010³ mm³
Plastic section modulusZy
1,14310³ mm³
Radius of gyrationry
83.93mm

Torsion and stability

Torsional constantJ
250,29710³ mm⁴

Equivalents in other standards