Rectangular and square HSS

HSS 229x178x8.0

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 = 177.8d = 228.6t = 7.94t = 7.94
Cross-section, to scaledimensions in mm

Dimensions

Depthd
228.6mm
Widthb
177.8mm
Thicknesst
7.94mm
Outside corner radiusro
15.88mm

Mass and area

Mass per lengthm
47.41kg/m
Cross-sectional areaA
6,039mm²
Outside perimeterP
785.5mm

Strong axis x–x

Moment of inertiaIx
45.0610⁶ mm⁴
Elastic section modulusSx
394.210³ mm³
Plastic section modulusZx
472.810³ mm³
Radius of gyrationrx
86.38mm

Weak axis y–y

Moment of inertiaIy
30.5810⁶ mm⁴
Elastic section modulusSy
34410³ mm³
Plastic section modulusZy
398.210³ mm³
Radius of gyrationry
71.16mm

Torsion and stability

Torsional constantJ
58,40910³ mm⁴

Equivalents in other standards