Rectangular and square HSS

HSS 356x203x6.4

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 = 6.35t = 6.35
Cross-section, to scaledimensions in mm

Dimensions

Depthd
355.6mm
Widthb
203.2mm
Thicknesst
6.35mm
Outside corner radiusro
12.7mm

Mass and area

Mass per lengthm
53.63kg/m
Cross-sectional areaA
6,832mm²
Outside perimeterP
1,096mm

Strong axis x–x

Moment of inertiaIx
118.110⁶ mm⁴
Elastic section modulusSx
664.410³ mm³
Plastic section modulusZx
805.610³ mm³
Radius of gyrationrx
131.5mm

Weak axis y–y

Moment of inertiaIy
50.0410⁶ mm⁴
Elastic section modulusSy
492.510³ mm³
Plastic section modulusZy
549.310³ mm³
Radius of gyrationry
85.58mm

Torsion and stability

Torsional constantJ
111,43010³ mm⁴

Equivalents in other standards