Rectangular and square HSS

HSS 76x64x6.4

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 = 63.5d = 76.2t = 6.35t = 6.35
Cross-section, to scaledimensions in mm

Dimensions

Depthd
76.2mm
Widthb
63.5mm
Thicknesst
6.35mm
Outside corner radiusro
12.7mm

Mass and area

Mass per lengthm
11.85kg/m
Cross-sectional areaA
1,509mm²
Outside perimeterP
257.6mm

Strong axis x–x

Moment of inertiaIx
1.11610⁶ mm⁴
Elastic section modulusSx
29.310³ mm³
Plastic section modulusZx
37.1410³ mm³
Radius of gyrationrx
27.2mm

Weak axis y–y

Moment of inertiaIy
0.835610⁶ mm⁴
Elastic section modulusSy
26.3210³ mm³
Plastic section modulusZy
32.6710³ mm³
Radius of gyrationry
23.53mm

Torsion and stability

Torsional constantJ
1,65810³ mm⁴

Equivalents in other standards