Rectangular and square HSS

HSS 178x102x6.4

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 = 101.6d = 177.8t = 6.35t = 6.35
Cross-section, to scaledimensions in mm

Dimensions

Depthd
177.8mm
Widthb
101.6mm
Thicknesst
6.35mm
Outside corner radiusro
12.7mm

Mass and area

Mass per lengthm
25.77kg/m
Cross-sectional areaA
3,283mm²
Outside perimeterP
537mm

Strong axis x–x

Moment of inertiaIx
13.4510⁶ mm⁴
Elastic section modulusSx
151.310³ mm³
Plastic section modulusZx
18810³ mm³
Radius of gyrationrx
64.01mm

Weak axis y–y

Moment of inertiaIy
5.61810⁶ mm⁴
Elastic section modulusSy
110.610³ mm³
Plastic section modulusZy
127.510³ mm³
Radius of gyrationry
41.36mm

Torsion and stability

Torsional constantJ
13,02110³ mm⁴

Equivalents in other standards