Rectangular and square HSS

HSS 305x254x16

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 = 15.88t = 15.88
Cross-section, to scaledimensions in mm

Dimensions

Depthd
304.8mm
Widthb
254mm
Thicknesst
15.88mm
Outside corner radiusro
31.75mm

Mass and area

Mass per lengthm
126.3kg/m
Cross-sectional areaA
16,090mm²
Outside perimeterP
1,063mm

Strong axis x–x

Moment of inertiaIx
207.910⁶ mm⁴
Elastic section modulusSx
1,36410³ mm³
Plastic section modulusZx
1,66010³ mm³
Radius of gyrationrx
113.7mm

Weak axis y–y

Moment of inertiaIy
156.510⁶ mm⁴
Elastic section modulusSy
1,23210³ mm³
Plastic section modulusZy
1,46410³ mm³
Radius of gyrationry
98.63mm

Torsion and stability

Torsional constantJ
293,90010³ mm⁴

Equivalents in other standards