Rectangular and square HSS

HSS 305x254x9.5

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 = 254d = 304.8t = 9.52t = 9.52
Cross-section, to scaledimensions in mm

Dimensions

Depthd
304.8mm
Widthb
254mm
Thicknesst
9.52mm
Outside corner radiusro
19.05mm

Mass and area

Mass per lengthm
78.84kg/m
Cross-sectional areaA
10,043mm²
Outside perimeterP
1,085mm

Strong axis x–x

Moment of inertiaIx
137.210⁶ mm⁴
Elastic section modulusSx
900.110³ mm³
Plastic section modulusZx
1,06810³ mm³
Radius of gyrationrx
116.9mm

Weak axis y–y

Moment of inertiaIy
103.710⁶ mm⁴
Elastic section modulusSy
816.410³ mm³
Plastic section modulusZy
942.910³ mm³
Radius of gyrationry
101.6mm

Torsion and stability

Torsional constantJ
187,49710³ mm⁴

Equivalents in other standards