Rectangular and square HSS

HSS 305x152x9.5

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 = 152.4d = 304.8t = 9.52t = 9.52
Cross-section, to scaledimensions in mm

Dimensions

Depthd
304.8mm
Widthb
152.4mm
Thicknesst
9.52mm
Outside corner radiusro
19.05mm

Mass and area

Mass per lengthm
63.65kg/m
Cross-sectional areaA
8,109mm²
Outside perimeterP
881.7mm

Strong axis x–x

Moment of inertiaIx
9510⁶ mm⁴
Elastic section modulusSx
623.310³ mm³
Plastic section modulusZx
781.910³ mm³
Radius of gyrationrx
108.2mm

Weak axis y–y

Moment of inertiaIy
32.1310⁶ mm⁴
Elastic section modulusSy
421.710³ mm³
Plastic section modulusZy
481.910³ mm³
Radius of gyrationry
62.95mm

Torsion and stability

Torsional constantJ
79,16010³ mm⁴

Equivalents in other standards