Rectangular and square HSS

HSS 203x102x8.0

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 = 101.6d = 203.2t = 7.94t = 7.94
Cross-section, to scaledimensions in mm

Dimensions

Depthd
203.2mm
Widthb
101.6mm
Thicknesst
7.94mm
Outside corner radiusro
15.88mm

Mass and area

Mass per lengthm
34.74kg/m
Cross-sectional areaA
4,426mm²
Outside perimeterP
582.3mm

Strong axis x–x

Moment of inertiaIx
22.4610⁶ mm⁴
Elastic section modulusSx
221.110³ mm³
Plastic section modulusZx
280.610³ mm³
Radius of gyrationrx
71.24mm

Weak axis y–y

Moment of inertiaIy
7.53310⁶ mm⁴
Elastic section modulusSy
148.310³ mm³
Plastic section modulusZy
172.310³ mm³
Radius of gyrationry
41.26mm

Torsion and stability

Torsional constantJ
18,89710³ mm⁴

Equivalents in other standards