UB · Universal Beams

610UB125

610UB125 Universal Beam

  • AS/NZS 3679.1:2016
  • Design: AS 4100:2020
  • Unverified
Weight Surface area Equivalents XML
Mass125.30kg/m
A15,962mm²
Ix987.76810⁶ mm⁴
Zx3,228.010³ mm³
610UB125 cross-section
Cross-section drawn to scale from nominal dimensions. Cross-hair marks the centroid.

Dimensions

ParameterSymbolValueUnitData
Depthd612.0mmU
Flange widthbf229.0mmU
Flange thicknesstf19.6mmU
Web thicknesstw11.9mmU
Root radiusr114.0mmU

Section Properties

ParameterSymbolValueUnitData
General
Mass per metre mass125.30kg/mC
Gross area A15,962mm²C
About x-axis (major)
Second moment of area Ix Ix987.76810⁶ mm⁴C
Elastic section modulus Zx (min) Zx3,228.010³ mm³C
Plastic section modulus Sx Sx3,682.810³ mm³C
Radius of gyration rx rx248.8mmC
About y-axis (minor)
Second moment of area Iy Iy39.32510⁶ mm⁴C
Elastic section modulus Zy (min) Zy343.410³ mm³C
Plastic section modulus Sy Sy535.710³ mm³C
Radius of gyration ry ry49.6mmC
Torsion & warping
Torsion constant JApproximate thin-walled value, fillets neglected J1.47110⁶ mm⁴C
Warping constant IwIy·(d−tf)²/4 Iw3,450.1510⁹ mm⁶C
Surface area
External surface area extArea2.092m²/mC

Nominal designation mass 125.00 kg/m; calculated 125.30 kg/m (+0.2%).

Steel Grades

GradeStandard fy MPafu MPa NoteData
300 AS/NZS 3679.1:2016 280 440 Typical grade supplied – confirm availability with supplier U

Strengths shown for governing thickness t = 19.6 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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