Cold-formed RHS

450x250x12.5

Standard: BS EN 10219-2Source: Calculated — radii per EN 10219-2
xyb = 250d = 450t = 12.5t = 12.5
Cross-section, to scaledimensions in mm

Dimensions

Depthd
450mm
Widthb
250mm
Thicknesst
12.5mm
Outside corner radiusro
37.5mm

Mass and area

Mass per lengthm
127.2kg/m
Cross-sectional areaA
16,204mm²
Outside perimeterP
1,336mm

Strong axis x–x

Moment of inertiaIx
425.410⁶ mm⁴
Elastic section modulusSx
1,89010³ mm³
Plastic section modulusZx
2,34610³ mm³
Radius of gyrationrx
162mm

Weak axis y–y

Moment of inertiaIy
172.210⁶ mm⁴
Elastic section modulusSy
1,37710³ mm³
Plastic section modulusZy
1,56910³ mm³
Radius of gyrationry
103.1mm

Torsion and stability

Torsional constantJ
410,57210³ mm⁴

Equivalents in other standards