Rectangular and square HSS

HSS 178x76x3.2

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 = 76.2d = 177.8t = 3.17t = 3.17
Cross-section, to scaledimensions in mm

Dimensions

Depthd
177.8mm
Widthb
76.2mm
Thicknesst
3.17mm
Outside corner radiusro
6.35mm

Mass and area

Mass per lengthm
12.12kg/m
Cross-sectional areaA
1,544mm²
Outside perimeterP
497.1mm

Strong axis x–x

Moment of inertiaIx
6.14410⁶ mm⁴
Elastic section modulusSx
69.1110³ mm³
Plastic section modulusZx
86.4810³ mm³
Radius of gyrationrx
63.08mm

Weak axis y–y

Moment of inertiaIy
1.64810⁶ mm⁴
Elastic section modulusSy
43.2410³ mm³
Plastic section modulusZy
47.9210³ mm³
Radius of gyrationry
32.66mm

Torsion and stability

Torsional constantJ
4,22610³ mm⁴

Equivalents in other standards