Rectangular and square HSS

HSS 203x51x6.4

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 = 50.8d = 203.2t = 6.35t = 6.35
Cross-section, to scaledimensions in mm

Dimensions

Depthd
203.2mm
Widthb
50.8mm
Thicknesst
6.35mm
Outside corner radiusro
12.7mm

Mass and area

Mass per lengthm
23.24kg/m
Cross-sectional areaA
2,961mm²
Outside perimeterP
486.2mm

Strong axis x–x

Moment of inertiaIx
12.5210⁶ mm⁴
Elastic section modulusSx
123.310³ mm³
Plastic section modulusZx
168.310³ mm³
Radius of gyrationrx
65.03mm

Weak axis y–y

Moment of inertiaIy
1.28110⁶ mm⁴
Elastic section modulusSy
50.4510³ mm³
Plastic section modulusZy
59.4510³ mm³
Radius of gyrationry
20.8mm

Torsion and stability

Torsional constantJ
4,13710³ mm⁴

Equivalents in other standards