Rectangular and square HSS

HSS 229x178x6.4

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 = 177.8d = 228.6t = 6.35t = 6.35
Cross-section, to scaledimensions in mm

Dimensions

Depthd
228.6mm
Widthb
177.8mm
Thicknesst
6.35mm
Outside corner radiusro
12.7mm

Mass and area

Mass per lengthm
38.43kg/m
Cross-sectional areaA
4,896mm²
Outside perimeterP
791mm

Strong axis x–x

Moment of inertiaIx
37.2110⁶ mm⁴
Elastic section modulusSx
325.610³ mm³
Plastic section modulusZx
387.210³ mm³
Radius of gyrationrx
87.18mm

Weak axis y–y

Moment of inertiaIy
25.3110⁶ mm⁴
Elastic section modulusSy
284.710³ mm³
Plastic section modulusZy
326.310³ mm³
Radius of gyrationry
71.9mm

Torsion and stability

Torsional constantJ
47,70210³ mm⁴

Equivalents in other standards