Rectangular and square HSS

HSS 203x76x6.4

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 = 76.2d = 203.2t = 6.35t = 6.35
Cross-section, to scaledimensions in mm

Dimensions

Depthd
203.2mm
Widthb
76.2mm
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
15.6510⁶ mm⁴
Elastic section modulusSx
15410³ mm³
Plastic section modulusZx
20010³ mm³
Radius of gyrationrx
69.04mm

Weak axis y–y

Moment of inertiaIy
3.28610⁶ mm⁴
Elastic section modulusSy
86.2610³ mm³
Plastic section modulusZy
99.110³ mm³
Radius of gyrationry
31.64mm

Torsion and stability

Torsional constantJ
9,22710³ mm⁴

Equivalents in other standards