Rectangular and square HSS

HSS 559x254x6.4

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 = 254d = 558.8t = 6.35t = 6.35
Cross-section, to scaledimensions in mm

Dimensions

Depthd
558.8mm
Widthb
254mm
Thicknesst
6.35mm
Outside corner radiusro
12.7mm

Mass and area

Mass per lengthm
78.95kg/m
Cross-sectional areaA
10,057mm²
Outside perimeterP
1,604mm

Strong axis x–x

Moment of inertiaIx
410.510⁶ mm⁴
Elastic section modulusSx
1,46910³ mm³
Plastic section modulusZx
1,80910³ mm³
Radius of gyrationrx
202mm

Weak axis y–y

Moment of inertiaIy
122.110⁶ mm⁴
Elastic section modulusSy
961.110³ mm³
Plastic section modulusZy
1,05110³ mm³
Radius of gyrationry
110.2mm

Torsion and stability

Torsional constantJ
299,97410³ mm⁴

Equivalents in other standards