EA – equal-leg angles

50x50x8EA

Standard: AS/NZS 3679.1Source: InfraBuild dimensions, Hot Rolled & Structural Steel Products (ed. 9) — calculated properties
Same sections as Australia (joint AS/NZS standard). Published area (Ag) shown as a check: difference < 1.5% on every section.
xyb = 50d = 50t = 7.8t = 7.8
Cross-section, to scaledimensions in mm

Dimensions

Depthd
50mm
Widthb
50mm
Thicknesst
7.8mm
Root radiusr1
6mm

Mass and area

Mass per lengthm
5.676kg/m
Cross-sectional areaA
723mm²
Published area (standard)A pub.
723mm²
Outside perimeterP
194.9mm

Strong axis x–x

Moment of inertiaIx
0.160310⁶ mm⁴
Elastic section modulusSx
4.60810³ mm³
Radius of gyrationrx
14.89mm

Weak axis y–y

Moment of inertiaIy
0.160310⁶ mm⁴
Elastic section modulusSy
4.60810³ mm³
Radius of gyrationry
14.89mm

Principal axes

Moment of inertia, major principal axisIu
0.253110⁶ mm⁴
Moment of inertia, minor principal axisIv
0.0675210⁶ mm⁴
Radius of gyrationru
18.71mm
Radius of gyration, minor principal axisrv
9.664mm
Principal axis angleα
45°

Torsion and stability

Torsional constantJ
15.5910³ mm⁴

Centers

Centroidx̄
15.21mm
Centroidȳ
15.21mm

Equivalents in other standards