Rectangular and square HSS

HSS 229x127x16

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 = 127d = 228.6t = 15.88t = 15.88
Cross-section, to scaledimensions in mm

Dimensions

Depthd
228.6mm
Widthb
127mm
Thicknesst
15.88mm
Outside corner radiusro
31.75mm

Mass and area

Mass per lengthm
75.64kg/m
Cross-sectional areaA
9,636mm²
Outside perimeterP
656.7mm

Strong axis x–x

Moment of inertiaIx
57.8710⁶ mm⁴
Elastic section modulusSx
506.310³ mm³
Plastic section modulusZx
664.410³ mm³
Radius of gyrationrx
77.5mm

Weak axis y–y

Moment of inertiaIy
22.4910⁶ mm⁴
Elastic section modulusSy
354.210³ mm³
Plastic section modulusZy
436.110³ mm³
Radius of gyrationry
48.31mm

Torsion and stability

Torsional constantJ
56,91410³ mm⁴

Equivalents in other standards