Rectangular and square HSS

HSS 178x51x4.8

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 = 177.8t = 4.76t = 4.76
Cross-section, to scaledimensions in mm

Dimensions

Depthd
177.8mm
Widthb
50.8mm
Thicknesst
4.76mm
Outside corner radiusro
9.52mm

Mass and area

Mass per lengthm
15.91kg/m
Cross-sectional areaA
2,027mm²
Outside perimeterP
440.9mm

Strong axis x–x

Moment of inertiaIx
6.9510⁶ mm⁴
Elastic section modulusSx
78.1810³ mm³
Plastic section modulusZx
104.110³ mm³
Radius of gyrationrx
58.55mm

Weak axis y–y

Moment of inertiaIy
0.921110⁶ mm⁴
Elastic section modulusSy
36.2610³ mm³
Plastic section modulusZy
41.5910³ mm³
Radius of gyrationry
21.32mm

Torsion and stability

Torsional constantJ
2,82210³ mm⁴

Equivalents in other standards