Rectangular and square HSS

HSS 508x305x8.0

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 = 304.8d = 508t = 7.94t = 7.94
Cross-section, to scaledimensions in mm

Dimensions

Depthd
508mm
Widthb
304.8mm
Thicknesst
7.94mm
Outside corner radiusro
15.88mm

Mass and area

Mass per lengthm
98.07kg/m
Cross-sectional areaA
12,493mm²
Outside perimeterP
1,598mm

Strong axis x–x

Moment of inertiaIx
45010⁶ mm⁴
Elastic section modulusSx
1,77210³ mm³
Plastic section modulusZx
2,13110³ mm³
Radius of gyrationrx
189.8mm

Weak axis y–y

Moment of inertiaIy
20610⁶ mm⁴
Elastic section modulusSy
1,35210³ mm³
Plastic section modulusZy
1,50410³ mm³
Radius of gyrationry
128.4mm

Torsion and stability

Torsional constantJ
444,36010³ mm⁴

Equivalents in other standards