Unequal-leg angles (EN 10056-1)

L 80x40x8

Standard: Mixed range: EN 10056-1:1998 (calculation convention, 19 of 39 sizes); other sizes DIN 1029, manufacturersSource: Geometry: Steel Section Database (MIT) — calculated properties (exact engine)
xyb = 40d = 80t = 8t = 8
Cross-section, to scaledimensions in mm

Dimensions

Depthd
80mm
Widthb
40mm
Thicknesst
8mm
Root radiusr1
7mm

Mass and area

Mass per lengthm
7.075kg/m
Cross-sectional areaA
901.3mm²
Outside perimeterP
234mm

Strong axis x–x

Moment of inertiaIx
0.576110⁶ mm⁴
Elastic section modulusSx
11.3910³ mm³
Radius of gyrationrx
25.28mm

Weak axis y–y

Moment of inertiaIy
0.0961110⁶ mm⁴
Elastic section modulusSy
3.16510³ mm³
Radius of gyrationry
10.33mm

Principal axes

Moment of inertia, major principal axisIu
0.608910⁶ mm⁴
Moment of inertia, minor principal axisIv
0.0633610⁶ mm⁴
Radius of gyrationru
25.99mm
Radius of gyration, minor principal axisrv
8.384mm
Principal axis angleα
14.18°

Torsion and stability

Torsional constantJ
20.5410³ mm⁴

Centers

Centroidx̄
9.634mm
Centroidȳ
29.4mm

Equivalents in other standards