Rectangular and square HSS

HSS 508x305x25

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 = 25.4t = 25.4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
508mm
Widthb
304.8mm
Thicknesst
25.4mm
Outside corner radiusro
50.8mm

Mass and area

Mass per lengthm
290.8kg/m
Cross-sectional areaA
37,048mm²
Outside perimeterP
1,538mm

Strong axis x–x

Moment of inertiaIx
1,20410⁶ mm⁴
Elastic section modulusSx
4,74010³ mm³
Plastic section modulusZx
5,97710³ mm³
Radius of gyrationrx
180.3mm

Weak axis y–y

Moment of inertiaIy
538.310⁶ mm⁴
Elastic section modulusSy
3,53210³ mm³
Plastic section modulusZy
4,17910³ mm³
Radius of gyrationry
120.5mm

Torsion and stability

Torsional constantJ
1,251,12010³ mm⁴

Equivalents in other standards