Rectangular and square HSS

HSS 457x254x8.0

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 = 254d = 457.2t = 7.94t = 7.94
Cross-section, to scaledimensions in mm

Dimensions

Depthd
457.2mm
Widthb
254mm
Thicknesst
7.94mm
Outside corner radiusro
15.88mm

Mass and area

Mass per lengthm
85.4kg/m
Cross-sectional areaA
10,879mm²
Outside perimeterP
1,395mm

Strong axis x–x

Moment of inertiaIx
308.910⁶ mm⁴
Elastic section modulusSx
1,35110³ mm³
Plastic section modulusZx
1,64210³ mm³
Radius of gyrationrx
168.5mm

Weak axis y–y

Moment of inertiaIy
125.210⁶ mm⁴
Elastic section modulusSy
986.210³ mm³
Plastic section modulusZy
1,09810³ mm³
Radius of gyrationry
107.3mm

Torsion and stability

Torsional constantJ
282,85910³ mm⁴

Equivalents in other standards