Rectangular and square HSS

HSS 51x25x3.2

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 = 25.4d = 50.8t = 3.17t = 3.17
Cross-section, to scaledimensions in mm

Dimensions

Depthd
50.8mm
Widthb
25.4mm
Thicknesst
3.17mm
Outside corner radiusro
6.35mm

Mass and area

Mass per lengthm
3.273kg/m
Cross-sectional areaA
416.9mm²
Outside perimeterP
141.5mm

Strong axis x–x

Moment of inertiaIx
0.121910⁶ mm⁴
Elastic section modulusSx
4.80110³ mm³
Plastic section modulusZx
6.32410³ mm³
Radius of gyrationrx
17.1mm

Weak axis y–y

Moment of inertiaIy
0.0399410⁶ mm⁴
Elastic section modulusSy
3.14510³ mm³
Plastic section modulusZy
3.84110³ mm³
Radius of gyrationry
9.787mm

Torsion and stability

Torsional constantJ
105.510³ mm⁴

Equivalents in other standards