Rectangular and square HSS

HSS 64x38x6.4

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 = 38.1d = 63.5t = 6.35t = 6.35
Cross-section, to scaledimensions in mm

Dimensions

Depthd
63.5mm
Widthb
38.1mm
Thicknesst
6.35mm
Outside corner radiusro
12.7mm

Mass and area

Mass per lengthm
8.048kg/m
Cross-sectional areaA
1,025mm²
Outside perimeterP
181.4mm

Strong axis x–x

Moment of inertiaIx
0.438910⁶ mm⁴
Elastic section modulusSx
13.8210³ mm³
Plastic section modulusZx
18.8510³ mm³
Radius of gyrationrx
20.69mm

Weak axis y–y

Moment of inertiaIy
0.190610⁶ mm⁴
Elastic section modulusSy
1010³ mm³
Plastic section modulusZy
1310³ mm³
Radius of gyrationry
13.63mm

Torsion and stability

Torsional constantJ
488.310³ mm⁴

Equivalents in other standards