<?xml version="1.0" encoding="UTF-8"?>
<section version="3.1" id="250ub37-3" category="UB">
  <designation>250UB37.3</designation>
  <name>250UB37.3 Universal Beam</name>
  <shape>I</shape>
  <productStandard ref="AS-NZS-3679-1"/>
  <nominalMass unit="kg/m">37.3</nominalMass>
  <dimensions>
    <dim key="d" unit="mm" label="Depth" status="UNVERIFIED">256</dim>
    <dim key="bf" unit="mm" label="Flange width" status="UNVERIFIED">146</dim>
    <dim key="tf" unit="mm" label="Flange thickness" status="UNVERIFIED">10.9</dim>
    <dim key="tw" unit="mm" label="Web thickness" status="UNVERIFIED">6.4</dim>
    <dim key="r1" unit="mm" label="Root radius" status="UNVERIFIED">8.9</dim>
  </dimensions>
  <properties>
    <prop key="A" unit="mm2" label="Gross area" status="CALCULATED">4750</prop>
    <prop key="mass" unit="kg/m" label="Mass per metre" status="CALCULATED">37.2863</prop>
    <prop key="Ix" unit="mm4" label="Second moment of area Ix" status="CALCULATED">55586961</prop>
    <prop key="Zx" unit="mm3" label="Elastic section modulus Zx (min)" status="CALCULATED">434273</prop>
    <prop key="Sx" unit="mm3" label="Plastic section modulus Sx" status="CALCULATED">485659</prop>
    <prop key="rx" unit="mm" label="Radius of gyration rx" status="CALCULATED">108.1799</prop>
    <prop key="Iy" unit="mm4" label="Second moment of area Iy" status="CALCULATED">5660858</prop>
    <prop key="Zy" unit="mm3" label="Elastic section modulus Zy (min)" status="CALCULATED">77546</prop>
    <prop key="Sy" unit="mm3" label="Plastic section modulus Sy" status="CALCULATED">118924</prop>
    <prop key="ry" unit="mm" label="Radius of gyration ry" status="CALCULATED">34.5224</prop>
    <prop key="J" unit="mm4" label="Torsion constant J" status="CALCULATED" note="Approximate thin-walled value, fillets neglected">146514</prop>
    <prop key="Iw" unit="mm6" label="Warping constant Iw" status="CALCULATED" note="Iy·(d−tf)²/4">85017610501</prop>
    <prop key="extArea" unit="m2/m" label="External surface area" status="CALCULATED">1.0679</prop>
  </properties>
  <source>
    <publisher>Pending verification – nominal dimensions entered by the application developer</publisher>
    <document>AS/NZS 3679.1:2016 Structural steel – Hot-rolled bars and sections</document>
    <edition>2016</edition>
    <publicationYear>2016</publicationYear>
    <pageReference/>
    <lastUpdated>2026-10-12</lastUpdated>
    <verificationStatus>UNVERIFIED</verificationStatus>
    <notes>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.</notes>
  </source>
  <tags/>
</section>
