Rectangular and square HSS

HSS 203x51x13

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 = 12.7t = 12.7
Cross-section, to scaledimensions in mm

Dimensions

Depthd
203.2mm
Widthb
50.8mm
Thicknesst
12.7mm
Outside corner radiusro
25.4mm

Mass and area

Mass per lengthm
42.32kg/m
Cross-sectional areaA
5,391mm²
Outside perimeterP
464.4mm

Strong axis x–x

Moment of inertiaIx
19.5410⁶ mm⁴
Elastic section modulusSx
192.310³ mm³
Plastic section modulusZx
282.410³ mm³
Radius of gyrationrx
60.2mm

Weak axis y–y

Moment of inertiaIy
1.76310⁶ mm⁴
Elastic section modulusSy
69.4210³ mm³
Plastic section modulusZy
92.8610³ mm³
Radius of gyrationry
18.09mm

Torsion and stability

Torsional constantJ
6,06510³ mm⁴

Equivalents in other standards