Rectangular and square HSS

HSS 356x203x8.0

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 = 203.2d = 355.6t = 7.94t = 7.94
Cross-section, to scaledimensions in mm

Dimensions

Depthd
355.6mm
Widthb
203.2mm
Thicknesst
7.94mm
Outside corner radiusro
15.88mm

Mass and area

Mass per lengthm
66.4kg/m
Cross-sectional areaA
8,459mm²
Outside perimeterP
1,090mm

Strong axis x–x

Moment of inertiaIx
144.410⁶ mm⁴
Elastic section modulusSx
811.910³ mm³
Plastic section modulusZx
990.510³ mm³
Radius of gyrationrx
130.6mm

Weak axis y–y

Moment of inertiaIy
60.9310⁶ mm⁴
Elastic section modulusSy
599.710³ mm³
Plastic section modulusZy
674.410³ mm³
Radius of gyrationry
84.87mm

Torsion and stability

Torsional constantJ
137,06010³ mm⁴

Equivalents in other standards