Rectangular and square HSS

HSS 305x51x4.8

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 = 50.8d = 304.8t = 4.76t = 4.76
Cross-section, to scaledimensions in mm

Dimensions

Depthd
304.8mm
Widthb
50.8mm
Thicknesst
4.76mm
Outside corner radiusro
9.52mm

Mass and area

Mass per lengthm
25.41kg/m
Cross-sectional areaA
3,236mm²
Outside perimeterP
694.9mm

Strong axis x–x

Moment of inertiaIx
29.9710⁶ mm⁴
Elastic section modulusSx
196.710³ mm³
Plastic section modulusZx
271.210³ mm³
Radius of gyrationrx
96.23mm

Weak axis y–y

Moment of inertiaIy
1.56410⁶ mm⁴
Elastic section modulusSy
61.5810³ mm³
Plastic section modulusZy
69.4210³ mm³
Radius of gyrationry
21.98mm

Torsion and stability

Torsional constantJ
5,33410³ mm⁴

Equivalents in other standards