Rectangular and square HSS

HSS 254x127x8.0

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 = 127d = 254t = 7.94t = 7.94
Cross-section, to scaledimensions in mm

Dimensions

Depthd
254mm
Widthb
127mm
Thicknesst
7.94mm
Outside corner radiusro
15.88mm

Mass and area

Mass per lengthm
44.24kg/m
Cross-sectional areaA
5,636mm²
Outside perimeterP
734.7mm

Strong axis x–x

Moment of inertiaIx
45.8510⁶ mm⁴
Elastic section modulusSx
36110³ mm³
Plastic section modulusZx
452.810³ mm³
Radius of gyrationrx
90.2mm

Weak axis y–y

Moment of inertiaIy
15.5110⁶ mm⁴
Elastic section modulusSy
244.210³ mm³
Plastic section modulusZy
279.110³ mm³
Radius of gyrationry
52.46mm

Torsion and stability

Torsional constantJ
38,20310³ mm⁴

Equivalents in other standards