Rectangular and square HSS

HSS 610x305x6.4

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 = 304.8d = 609.6t = 6.35t = 6.35
Cross-section, to scaledimensions in mm

Dimensions

Depthd
609.6mm
Widthb
304.8mm
Thicknesst
6.35mm
Outside corner radiusro
12.7mm

Mass and area

Mass per lengthm
89.08kg/m
Cross-sectional areaA
11,348mm²
Outside perimeterP
1,807mm

Strong axis x–x

Moment of inertiaIx
567.710⁶ mm⁴
Elastic section modulusSx
1,86210³ mm³
Plastic section modulusZx
2,26710³ mm³
Radius of gyrationrx
223.7mm

Weak axis y–y

Moment of inertiaIy
196.410⁶ mm⁴
Elastic section modulusSy
1,28910³ mm³
Plastic section modulusZy
1,41010³ mm³
Radius of gyrationry
131.6mm

Torsion and stability

Torsional constantJ
460,47210³ mm⁴

Equivalents in other standards