Unequal-leg angles (EN 10056-1)

L 120x80x12

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)
Singapore uses BS / BS EN sections; same data as the United Kingdom.
xyb = 80d = 120t = 12t = 12
Cross-section, to scaledimensions in mm

Dimensions

Depthd
120mm
Widthb
80mm
Thicknesst
12mm
Root radiusr1
11mm

Mass and area

Mass per lengthm
17.81kg/m
Cross-sectional areaA
2,269mm²
Outside perimeterP
390.6mm

Strong axis x–x

Moment of inertiaIx
3.22810⁶ mm⁴
Elastic section modulusSx
40.3710³ mm³
Radius of gyrationrx
37.72mm

Weak axis y–y

Moment of inertiaIy
1.14310⁶ mm⁴
Elastic section modulusSy
19.1410³ mm³
Radius of gyrationry
22.45mm

Principal axes

Moment of inertia, major principal axisIu
3.70510⁶ mm⁴
Moment of inertia, minor principal axisIv
0.666610⁶ mm⁴
Radius of gyrationru
40.41mm
Radius of gyration, minor principal axisrv
17.14mm
Principal axis angleα
23.33°

Torsion and stability

Torsional constantJ
116.110³ mm⁴

Centers

Centroidx̄
20.26mm
Centroidȳ
40.03mm

Equivalents in other standards