Equal-leg angles (EN 10056-1)

L 55x55x6

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)
Singapore uses BS / BS EN sections; same data as the United Kingdom.
xyb = 55d = 55t = 6t = 6
Cross-section, to scaledimensions in mm

Dimensions

Depthd
55mm
Widthb
55mm
Thicknesst
6mm
Root radiusr1
8mm

Mass and area

Mass per lengthm
4.952kg/m
Cross-sectional areaA
630.9mm²
Outside perimeterP
213.1mm

Strong axis x–x

Moment of inertiaIx
0.172910⁶ mm⁴
Elastic section modulusSx
4.39110³ mm³
Radius of gyrationrx
16.55mm

Weak axis y–y

Moment of inertiaIy
0.172910⁶ mm⁴
Elastic section modulusSy
4.39110³ mm³
Radius of gyrationry
16.55mm

Principal axes

Moment of inertia, major principal axisIu
0.27410⁶ mm⁴
Moment of inertia, minor principal axisIv
0.0717910⁶ mm⁴
Radius of gyrationru
20.84mm
Radius of gyration, minor principal axisrv
10.67mm
Principal axis angleα
45°

Torsion and stability

Torsional constantJ
8.510³ mm⁴

Centers

Centroidx̄
15.63mm
Centroidȳ
15.63mm

Equivalents in other standards