Rectangular and square HSS

HSS 254x254x9.5

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.

Cross-section, to scaledimensions in mm

Dimensions

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

Mass and area

Mass per lengthm: 71.25kg/m
Cross-sectional areaA: 9,076mm²
Outside perimeterP: 983.3mm

Strong axis x–x

Moment of inertiaIx: 89.2210⁶ mm⁴
Elastic section modulusSx: 702.510³ mm³
Plastic section modulusZx: 824.710³ mm³
Radius of gyrationrx: 99.15mm

Weak axis y–y

Moment of inertiaIy: 89.2210⁶ mm⁴
Elastic section modulusSy: 702.510³ mm³
Plastic section modulusZy: 824.710³ mm³
Radius of gyrationry: 99.15mm

Torsion and stability

Torsional constantJ: 142,13010³ mm⁴