Cold-formed RHS

70x40x4.0

Standard: BS EN 10219-2Source: Calculated — radii per EN 10219-2
xyb = 40d = 70t = 4t = 4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
70mm
Widthb
40mm
Thicknesst
4mm
Outside corner radiusro
8mm

Mass and area

Mass per lengthm
6.082kg/m
Cross-sectional areaA
774.8mm²
Outside perimeterP
206.3mm

Strong axis x–x

Moment of inertiaIx
0.459510⁶ mm⁴
Elastic section modulusSx
13.1310³ mm³
Plastic section modulusZx
16.8410³ mm³
Radius of gyrationrx
24.35mm

Weak axis y–y

Moment of inertiaIy
0.188810⁶ mm⁴
Elastic section modulusSy
9.44110³ mm³
Plastic section modulusZy
11.3310³ mm³
Radius of gyrationry
15.61mm

Torsion and stability

Torsional constantJ
458.410³ mm⁴

Equivalents in other standards