Hot-finished RHS

80x40x4.0

Standard: BS EN 10210-2Source: Calculated — radii per EN 10210-2
Singapore uses BS / BS EN sections; same data as the United Kingdom.
xyb = 40d = 80t = 4t = 4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
80mm
Widthb
40mm
Thicknesst
4mm
Outside corner radiusro
6mm

Mass and area

Mass per lengthm
6.899kg/m
Cross-sectional areaA
878.8mm²
Outside perimeterP
229.7mm

Strong axis x–x

Moment of inertiaIx
0.68210⁶ mm⁴
Elastic section modulusSx
17.0510³ mm³
Plastic section modulusZx
21.8210³ mm³
Radius of gyrationrx
27.86mm

Weak axis y–y

Moment of inertiaIy
0.222410⁶ mm⁴
Elastic section modulusSy
11.1210³ mm³
Plastic section modulusZy
13.210³ mm³
Radius of gyrationry
15.91mm

Torsion and stability

Torsional constantJ
551.910³ mm⁴

Equivalents in other standards