Rectangular and square HSS

HSS 178x178x9.5

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 = 177.8t = 9.52t = 9.52
Cross-section, to scaledimensions in mm

Dimensions

Depthd
177.8mm
Widthb
177.8mm
Thicknesst
9.52mm
Outside corner radiusro
19.05mm

Mass and area

Mass per lengthm
48.47kg/m
Cross-sectional areaA
6,174mm²
Outside perimeterP
678.5mm

Strong axis x–x

Moment of inertiaIx
28.5710⁶ mm⁴
Elastic section modulusSx
321.410³ mm³
Plastic section modulusZx
384.510³ mm³
Radius of gyrationrx
68.02mm

Weak axis y–y

Moment of inertiaIy
28.5710⁶ mm⁴
Elastic section modulusSy
321.410³ mm³
Plastic section modulusZy
384.510³ mm³
Radius of gyrationry
68.02mm

Torsion and stability

Torsional constantJ
46,68810³ mm⁴

Equivalents in other standards