UB · Universal Beams

360UB50.7

360UB50.7 Universal Beam

  • AS/NZS 3679.1:2016
  • Design: AS 4100:2020
  • Unverified
Weight Surface area Equivalents XML
Mass50.83kg/m
A6,476mm²
Ix142.20610⁶ mm⁴
Zx798.910³ mm³
360UB50.7 cross-section
Cross-section drawn to scale from nominal dimensions. Cross-hair marks the centroid.

Dimensions

ParameterSymbolValueUnitData
Depthd356.0mmU
Flange widthbf171.0mmU
Flange thicknesstf11.5mmU
Web thicknesstw7.3mmU
Root radiusr111.4mmU

Section Properties

ParameterSymbolValueUnitData
General
Mass per metre mass50.83kg/mC
Gross area A6,476mm²C
About x-axis (major)
Second moment of area Ix Ix142.20610⁶ mm⁴C
Elastic section modulus Zx (min) Zx798.910³ mm³C
Plastic section modulus Sx Sx898.210³ mm³C
Radius of gyration rx rx148.2mmC
About y-axis (minor)
Second moment of area Iy Iy9.59910⁶ mm⁴C
Elastic section modulus Zy (min) Zy112.310³ mm³C
Plastic section modulus Sy Sy173.310³ mm³C
Radius of gyration ry ry38.5mmC
Torsion & warping
Torsion constant JApproximate thin-walled value, fillets neglected J0.21710⁶ mm⁴C
Warping constant IwIy·(d−tf)²/4 Iw284.8110⁹ mm⁶C
Surface area
External surface area extArea1.362m²/mC

Nominal designation mass 50.70 kg/m; calculated 50.83 kg/m (+0.3%).

Steel Grades

GradeStandard fy MPafu MPa NoteData
300 AS/NZS 3679.1:2016 300 440 Typical grade supplied – confirm availability with supplier U

Strengths shown for governing thickness t = 11.5 mm. Density 7850 kg/m³, E = 200 000 MPa.

Source & Verification

Source publisher
Pending verification – nominal dimensions entered by the application developer
Source document
AS/NZS 3679.1:2016 Structural steel – Hot-rolled bars and sections
Edition
2016
Publication year
2016
Page reference
—
Last updated
2026-10-12
Verification status
Unverified

Nominal dimensions require verification against the current edition of the product standard and the manufacturer catalogue before design use. Properties are calculated by this application from the nominal dimensions.

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