Rectangular and square HSS

HSS 305x102x8.0

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 = 101.6d = 304.8t = 7.94t = 7.94
Cross-section, to scaledimensions in mm

Dimensions

Depthd
304.8mm
Widthb
101.6mm
Thicknesst
7.94mm
Outside corner radiusro
15.88mm

Mass and area

Mass per lengthm
47.41kg/m
Cross-sectional areaA
6,039mm²
Outside perimeterP
785.5mm

Strong axis x–x

Moment of inertiaIx
63.7710⁶ mm⁴
Elastic section modulusSx
418.510³ mm³
Plastic section modulusZx
546.410³ mm³
Radius of gyrationrx
102.8mm

Weak axis y–y

Moment of inertiaIy
11.0810⁶ mm⁴
Elastic section modulusSy
218.110³ mm³
Plastic section modulusZy
247.810³ mm³
Radius of gyrationry
42.83mm

Torsion and stability

Torsional constantJ
32,12510³ mm⁴

Equivalents in other standards