Rectangular and square HSS

HSS 51x51x4.8

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

Dimensions

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

Mass and area

Mass per lengthm
6.423kg/m
Cross-sectional areaA
818.3mm²
Outside perimeterP
186.9mm

Strong axis x–x

Moment of inertiaIx
0.278110⁶ mm⁴
Elastic section modulusSx
10.9510³ mm³
Plastic section modulusZx
13.7610³ mm³
Radius of gyrationrx
18.43mm

Weak axis y–y

Moment of inertiaIy
0.278110⁶ mm⁴
Elastic section modulusSy
10.9510³ mm³
Plastic section modulusZy
13.7610³ mm³
Radius of gyrationry
18.43mm

Torsion and stability

Torsional constantJ
483.510³ mm⁴

Equivalents in other standards