<?xml version="1.0" encoding="UTF-8"?>
<section version="3.1" id="upe-400" category="UPE">
  <designation>UPE 400</designation>
  <name>UPE 400 Parallel-flange channel</name>
  <shape>C</shape>
  <productStandard ref="EN-10365"/>
  <nominalMass unit="kg/m">72.2</nominalMass>
  <dimensions>
    <dim key="d" unit="mm" label="Depth" status="UNVERIFIED">400</dim>
    <dim key="bf" unit="mm" label="Flange width" status="UNVERIFIED">115</dim>
    <dim key="tf" unit="mm" label="Flange thickness" status="UNVERIFIED">18</dim>
    <dim key="tw" unit="mm" label="Web thickness" status="UNVERIFIED">13.5</dim>
    <dim key="r1" unit="mm" label="Root radius" status="UNVERIFIED">18</dim>
  </dimensions>
  <properties>
    <prop key="A" unit="mm2" label="Gross area" status="CALCULATED">9193</prop>
    <prop key="mass" unit="kg/m" label="Mass per metre" status="CALCULATED">72.1684</prop>
    <prop key="Ix" unit="mm4" label="Second moment of area Ix" status="CALCULATED">209818030</prop>
    <prop key="Zx" unit="mm3" label="Elastic section modulus Zx (min)" status="CALCULATED">1049090</prop>
    <prop key="Sx" unit="mm3" label="Plastic section modulus Sx" status="CALCULATED">1262728</prop>
    <prop key="rx" unit="mm" label="Radius of gyration rx" status="CALCULATED">151.0716</prop>
    <prop key="Iy" unit="mm4" label="Second moment of area Iy" status="CALCULATED">10447246</prop>
    <prop key="Zy" unit="mm3" label="Elastic section modulus Zy (min)" status="CALCULATED">122573</prop>
    <prop key="Sy" unit="mm3" label="Plastic section modulus Sy" status="CALCULATED">220839</prop>
    <prop key="ry" unit="mm" label="Radius of gyration ry" status="CALCULATED">33.7103</prop>
    <prop key="xc" unit="mm" label="Centroid x̄ (from left/heel)" status="CALCULATED">29.7673</prop>
    <prop key="J" unit="mm4" label="Torsion constant J" status="CALCULATED" note="Approximate thin-walled value, fillets neglected">745646</prop>
    <prop key="extArea" unit="m2/m" label="External surface area" status="CALCULATED">1.2175</prop>
  </properties>
  <source>
    <publisher>Pending verification – nominal dimensions entered by the application developer</publisher>
    <document>EN 10365:2017 Hot rolled steel channels, I and H sections – Dimensions and masses</document>
    <edition>2017</edition>
    <publicationYear>2017</publicationYear>
    <pageReference/>
    <lastUpdated>2026-10-12</lastUpdated>
    <verificationStatus>UNVERIFIED</verificationStatus>
    <notes>Nominal dimensions require verification against the current edition of EN 10365:2017 Hot rolled steel channels, I and H sections – Dimensions and masses and the manufacturer catalogue before design use. Properties are calculated by this application from the nominal dimensions.</notes>
  </source>
  <tags/>
</section>
