Rectangular and square HSS

HSS 178x102x8.0

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

Dimensions

Depthd
177.8mm
Widthb
101.6mm
Thicknesst
7.94mm
Outside corner radiusro
15.88mm

Mass and area

Mass per lengthm
31.58kg/m
Cross-sectional areaA
4,022mm²
Outside perimeterP
531.5mm

Strong axis x–x

Moment of inertiaIx
16.0210⁶ mm⁴
Elastic section modulusSx
180.310³ mm³
Plastic section modulusZx
226.910³ mm³
Radius of gyrationrx
63.12mm

Weak axis y–y

Moment of inertiaIy
6.64710⁶ mm⁴
Elastic section modulusSy
130.810³ mm³
Plastic section modulusZy
153.410³ mm³
Radius of gyrationry
40.65mm

Torsion and stability

Torsional constantJ
15,71010³ mm⁴

Equivalents in other standards