<?xml version="1.0" encoding="UTF-8"?>
<section version="3.1" id="hw125x125x6-5x9" category="HW">
  <designation>HW125×125×6.5×9</designation>
  <name>HW125×125×6.5×9 Wide-flange H-section (GB/T 11263)</name>
  <shape>I</shape>
  <productStandard ref="GB-T-11263"/>
  <nominalMass unit="kg/m">23.6</nominalMass>
  <dimensions>
    <dim key="d" unit="mm" label="Depth" status="UNVERIFIED">125</dim>
    <dim key="bf" unit="mm" label="Flange width" status="UNVERIFIED">125</dim>
    <dim key="tf" unit="mm" label="Flange thickness" status="UNVERIFIED">9</dim>
    <dim key="tw" unit="mm" label="Web thickness" status="UNVERIFIED">6.5</dim>
    <dim key="r1" unit="mm" label="Root radius" status="UNVERIFIED">8</dim>
  </dimensions>
  <properties>
    <prop key="A" unit="mm2" label="Gross area" status="CALCULATED">3001</prop>
    <prop key="mass" unit="kg/m" label="Mass per metre" status="CALCULATED">23.5546</prop>
    <prop key="Ix" unit="mm4" label="Second moment of area Ix" status="CALCULATED">8395162</prop>
    <prop key="Zx" unit="mm3" label="Elastic section modulus Zx (min)" status="CALCULATED">134323</prop>
    <prop key="Sx" unit="mm3" label="Plastic section modulus Sx" status="CALCULATED">151953</prop>
    <prop key="rx" unit="mm" label="Radius of gyration rx" status="CALCULATED">52.8947</prop>
    <prop key="Iy" unit="mm4" label="Second moment of area Iy" status="CALCULATED">2933660</prop>
    <prop key="Zy" unit="mm3" label="Elastic section modulus Zy (min)" status="CALCULATED">46939</prop>
    <prop key="Sy" unit="mm3" label="Plastic section modulus Sy" status="CALCULATED">71720</prop>
    <prop key="ry" unit="mm" label="Radius of gyration ry" status="CALCULATED">31.2681</prop>
    <prop key="J" unit="mm4" label="Torsion constant J" status="CALCULATED" note="Approximate thin-walled value, fillets neglected">70545</prop>
    <prop key="Iw" unit="mm6" label="Warping constant Iw" status="CALCULATED" note="Iy·(d−tf)²/4">9868832215</prop>
    <prop key="extArea" unit="m2/m" label="External surface area" status="CALCULATED">0.7233</prop>
  </properties>
  <source>
    <publisher>Pending verification – nominal dimensions entered by the application developer</publisher>
    <document>GB/T 11263:2017 Hot-rolled H and cut T section steel</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 GB/T 11263:2017 Hot-rolled H and cut T section steel and the manufacturer catalogue before design use. Properties are calculated by this application from the nominal dimensions.</notes>
  </source>
  <tags/>
</section>
