AU · UC · Universal Columns

200UC46.2

200UC46.2 Universal Column

  • AS/NZS 3679.1:2016
  • Design: AS 4100:2020
  • Unverified
Weight Surface area Equivalents XML
Mass46.31kg/m
A5,899mm²
Ix45.67710⁶ mm⁴
Zx450.010³ mm³
200UC46.2 cross-section
Cross-section drawn to scale from nominal dimensions. Cross-hair marks the centroid.

Dimensions

ParameterSymbolValueUnitData
Depthd203.0mmU
Flange widthbf203.0mmU
Flange thicknesstf11.0mmU
Web thicknesstw7.3mmU
Root radiusr111.4mmU

Section Properties

ParameterSymbolValueUnitData
General
Mass per metre mass46.31kg/mC
Gross area A5,899mm²C
About x-axis (major)
Second moment of area Ix Ix45.67710⁶ mm⁴C
Elastic section modulus Zx (min) Zx450.010³ mm³C
Plastic section modulus Sx Sx498.410³ mm³C
Radius of gyration rx rx88.0mmC
About y-axis (minor)
Second moment of area Iy Iy15.34710⁶ mm⁴C
Elastic section modulus Zy (min) Zy151.210³ mm³C
Plastic section modulus Sy Sy229.810³ mm³C
Radius of gyration ry ry51.0mmC
Torsion & warping
Torsion constant JApproximate thin-walled value, fillets neglected J0.20410⁶ mm⁴C
Warping constant IwIy·(d−tf)²/4 Iw141.4410⁹ mm⁶C
Surface area
External surface area extArea1.184m²/mC

Nominal designation mass 46.20 kg/m; calculated 46.31 kg/m (+0.2%).

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 = 11.0 mm. Density 7850 kg/m³, E = 200 000 MPa.

Where to buy

Producers of Hot-rolled beams & columns (I / H / W) – local mills first. Buy direct from the mill for large tonnages, or through a steel distributor / stockist for small quantities and cut lengths.

Buying checklist
  • Specify the section designation, product standard and steel grade exactly (e.g. "200UC46.2 – AS/NZS 3679.1:2016 – 300").
  • Ask for mill test certificates (EN 10204 type 3.1 or equivalent) traceable to the heat number.
  • Sections from another standard system are not automatically equivalent – have the engineer approve any substitution.
  • Check availability, minimum order quantity, stock lengths, lead time and delivery terms with the mill or distributor.

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Listing is informational only – not an endorsement, offer or confirmation of availability. Company details are marked UNVERIFIED until checked.

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 AS/NZS 3679.1:2016 Structural steel – Hot-rolled bars and sections and the manufacturer catalogue before design use. Properties are calculated by this application from the nominal dimensions.

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