Rectangular and square HSS

HSS 254x254x8.0

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.

Cross-section, to scaledimensions in mm

Dimensions

Depthd: 254mm
Widthb: 254mm
Thicknesst: 7.94mm
Outside corner radiusro: 15.88mm

Mass and area

Mass per lengthm: 60.07kg/m
Cross-sectional areaA: 7,653mm²
Outside perimeterP: 988.7mm

Strong axis x–x

Moment of inertiaIx: 76.3810⁶ mm⁴
Elastic section modulusSx: 601.510³ mm³
Plastic section modulusZx: 70110³ mm³
Radius of gyrationrx: 99.91mm

Weak axis y–y

Moment of inertiaIy: 76.3810⁶ mm⁴
Elastic section modulusSy: 601.510³ mm³
Plastic section modulusZy: 70110³ mm³
Radius of gyrationry: 99.91mm

Torsion and stability

Torsional constantJ: 120,47410³ mm⁴