Rectangular and square HSS

HSS 51x38x4.8

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 = 38.1d = 50.8t = 4.76t = 4.76
Cross-section, to scaledimensions in mm

Dimensions

Depthd
50.8mm
Widthb
38.1mm
Thicknesst
4.76mm
Outside corner radiusro
9.52mm

Mass and area

Mass per lengthm
5.474kg/m
Cross-sectional areaA
697.3mm²
Outside perimeterP
161.5mm

Strong axis x–x

Moment of inertiaIx
0.213810⁶ mm⁴
Elastic section modulusSx
8.41710³ mm³
Plastic section modulusZx
10.9810³ mm³
Radius of gyrationrx
17.51mm

Weak axis y–y

Moment of inertiaIy
0.134710⁶ mm⁴
Elastic section modulusSy
7.07210³ mm³
Plastic section modulusZy
8.94710³ mm³
Radius of gyrationry
13.9mm

Torsion and stability

Torsional constantJ
294.310³ mm⁴

Equivalents in other standards