UB · Universal Beams

310UB32.0

310UB32.0 Universal Beam

  • AS/NZS 3679.1:2016
  • Design: AS 4100:2020
  • Unverified
Weight Surface area Equivalents XML
Mass32.03kg/m
A4,080mm²
Ix63.18910⁶ mm⁴
Zx424.110³ mm³
310UB32.0 cross-section
Cross-section drawn to scale from nominal dimensions. Cross-hair marks the centroid.

Dimensions

ParameterSymbolValueUnitData
Depthd298.0mmU
Flange widthbf149.0mmU
Flange thicknesstf8.0mmU
Web thicknesstw5.5mmU
Root radiusr113.0mmU

Section Properties

ParameterSymbolValueUnitData
General
Mass per metre mass32.03kg/mC
Gross area A4,080mm²C
About x-axis (major)
Second moment of area Ix Ix63.18910⁶ mm⁴C
Elastic section modulus Zx (min) Zx424.110³ mm³C
Plastic section modulus Sx Sx475.110³ mm³C
Radius of gyration rx rx124.4mmC
About y-axis (minor)
Second moment of area Iy Iy4.42010⁶ mm⁴C
Elastic section modulus Zy (min) Zy59.310³ mm³C
Plastic section modulus Sy Sy91.810³ mm³C
Radius of gyration ry ry32.9mmC
Torsion & warping
Torsion constant JApproximate thin-walled value, fillets neglected J0.06610⁶ mm⁴C
Warping constant IwIy·(d−tf)²/4 Iw92.9310⁹ mm⁶C
Surface area
External surface area extArea1.159m²/mC

Nominal designation mass 32.00 kg/m; calculated 32.03 kg/m (+0.1%).

Steel Grades

GradeStandard fy MPafu MPa NoteData
300 AS/NZS 3679.1:2016 320 440 Typical grade supplied – confirm availability with supplier U

Strengths shown for governing thickness t = 8.0 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.

Report a data correction for this section