Equal-leg angles

L 40x40x4

Standard: Mixed range: EN 10056-1:1998 (calculation convention, 24 of 42 sizes); other sizes DIN 1028, EN 10056-1:2017, manufacturersSource: Geometry: Steel Section Database (MIT) — calculated properties (exact engine)
xyb = 40d = 40t = 4t = 4
Cross-section, to scaledimensions in mm

Dimensions

Depthd
40mm
Widthb
40mm
Thicknesst
4mm
Root radiusr1
6mm

Mass and area

Mass per lengthm
2.417kg/m
Cross-sectional areaA
307.9mm²
Outside perimeterP
154.9mm

Strong axis x–x

Moment of inertiaIx
0.0447310⁶ mm⁴
Elastic section modulusSx
1.55310³ mm³
Radius of gyrationrx
12.05mm

Weak axis y–y

Moment of inertiaIy
0.0447310⁶ mm⁴
Elastic section modulusSy
1.55310³ mm³
Radius of gyrationry
12.05mm

Principal axes

Moment of inertia, major principal axisIu
0.0708810⁶ mm⁴
Moment of inertia, minor principal axisIv
0.0185810⁶ mm⁴
Radius of gyrationru
15.17mm
Radius of gyration, minor principal axisrv
7.769mm
Principal axis angleα
45°

Torsion and stability

Torsional constantJ
1.87510³ mm⁴

Centers

Centroidx̄
11.2mm
Centroidȳ
11.2mm

Equivalents in other standards