EA – equal-leg angles

200x200x20EA

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 = 200d = 200t = 20t = 20
Cross-section, to scaledimensions in mm

Dimensions

Depthd
200mm
Widthb
200mm
Thicknesst
20mm
Root radiusr1
18mm

Mass and area

Mass per lengthm
59.93kg/m
Cross-sectional areaA
7,635mm²
Published area (standard)A pub.
7,660mm²
Outside perimeterP
784.5mm

Strong axis x–x

Moment of inertiaIx
28.5110⁶ mm⁴
Elastic section modulusSx
199.110³ mm³
Radius of gyrationrx
61.1mm

Weak axis y–y

Moment of inertiaIy
28.5110⁶ mm⁴
Elastic section modulusSy
199.110³ mm³
Radius of gyrationry
61.1mm

Principal axes

Moment of inertia, major principal axisIu
45.2910⁶ mm⁴
Moment of inertia, minor principal axisIv
11.7210⁶ mm⁴
Radius of gyrationru
77.02mm
Radius of gyration, minor principal axisrv
39.18mm
Principal axis angleα
45°

Torsion and stability

Torsional constantJ
1,07210³ mm⁴

Centers

Centroidx̄
56.83mm
Centroidȳ
56.83mm

Equivalents in other standards