Rectangular and square HSS

HSS 254x76x8.0

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 = 76.2d = 254t = 7.94t = 7.94
Cross-section, to scaledimensions in mm

Dimensions

Depthd
254mm
Widthb
76.2mm
Thicknesst
7.94mm
Outside corner radiusro
15.88mm

Mass and area

Mass per lengthm
37.91kg/m
Cross-sectional areaA
4,829mm²
Outside perimeterP
633.1mm

Strong axis x–x

Moment of inertiaIx
33.6310⁶ mm⁴
Elastic section modulusSx
264.810³ mm³
Plastic section modulusZx
353.610³ mm³
Radius of gyrationrx
83.45mm

Weak axis y–y

Moment of inertiaIy
4.79310⁶ mm⁴
Elastic section modulusSy
125.810³ mm³
Plastic section modulusZy
146.210³ mm³
Radius of gyrationry
31.51mm

Torsion and stability

Torsional constantJ
14,62010³ mm⁴

Equivalents in other standards