EA – equal-leg angles

30x30x3EA

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 = 30d = 30t = 3t = 3
Cross-section, to scaledimensions in mm

Dimensions

Depthd
30mm
Widthb
30mm
Thicknesst
3mm
Root radiusr1
5mm

Mass and area

Mass per lengthm
1.363kg/m
Cross-sectional areaA
173.7mm²
Published area (standard)A pub.
173mm²
Outside perimeterP
115.7mm

Strong axis x–x

Moment of inertiaIx
0.0140510⁶ mm⁴
Elastic section modulusSx
0.64910³ mm³
Radius of gyrationrx
8.994mm

Weak axis y–y

Moment of inertiaIy
0.0140510⁶ mm⁴
Elastic section modulusSy
0.64910³ mm³
Radius of gyrationry
8.994mm

Principal axes

Moment of inertia, major principal axisIu
0.0222410⁶ mm⁴
Moment of inertia, minor principal axisIv
0.00585510⁶ mm⁴
Radius of gyrationru
11.32mm
Radius of gyration, minor principal axisrv
5.806mm
Principal axis angleα
45°

Torsion and stability

Torsional constantJ
0.613210³ mm⁴

Centers

Centroidx̄
8.353mm
Centroidȳ
8.353mm

Equivalents in other standards