Rectangular and square HSS

HSS 457x203x9.5

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 = 203.2d = 457.2t = 9.52t = 9.52
Cross-section, to scaledimensions in mm

Dimensions

Depthd
457.2mm
Widthb
203.2mm
Thicknesst
9.52mm
Outside corner radiusro
19.05mm

Mass and area

Mass per lengthm
94.03kg/m
Cross-sectional areaA
11,978mm²
Outside perimeterP
1,288mm

Strong axis x–x

Moment of inertiaIx
315.310⁶ mm⁴
Elastic section modulusSx
1,37910³ mm³
Plastic section modulusZx
1,72710³ mm³
Radius of gyrationrx
162.3mm

Weak axis y–y

Moment of inertiaIy
89.2910⁶ mm⁴
Elastic section modulusSy
878.810³ mm³
Plastic section modulusZy
981.110³ mm³
Radius of gyrationry
86.34mm

Torsion and stability

Torsional constantJ
226,98110³ mm⁴

Equivalents in other standards