<?xml version="1.0" encoding="UTF-8"?>
<section version="3.1" id="125bt15-7" category="T">
  <designation>125BT15.7</designation>
  <name>125BT15.7 Tee (cut from 250UB31.4)</name>
  <shape>T</shape>
  <productStandard ref="AS-NZS-3679-1"/>
  <parentSection>250UB31.4</parentSection>
  <dimensions>
    <dim key="d" unit="mm" label="Depth" status="CALCULATED">126</dim>
    <dim key="bf" unit="mm" label="Flange width" status="UNVERIFIED">146</dim>
    <dim key="tf" unit="mm" label="Flange thickness" status="UNVERIFIED">8.6</dim>
    <dim key="tw" unit="mm" label="Web thickness" status="UNVERIFIED">6.1</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">2006</prop>
    <prop key="mass" unit="kg/m" label="Mass per metre" status="CALCULATED">15.7457</prop>
    <prop key="Ix" unit="mm4" label="Second moment of area Ix" status="CALCULATED">2649598</prop>
    <prop key="Zx" unit="mm3" label="Elastic section modulus Zx (min)" status="CALCULATED" note="Minimum (stem tip)">26737</prop>
    <prop key="Sx" unit="mm3" label="Plastic section modulus Sx" status="CALCULATED">47067</prop>
    <prop key="rx" unit="mm" label="Radius of gyration rx" status="CALCULATED">36.3449</prop>
    <prop key="Iy" unit="mm4" label="Second moment of area Iy" status="CALCULATED">2233547</prop>
    <prop key="Zy" unit="mm3" label="Elastic section modulus Zy (min)" status="CALCULATED">30597</prop>
    <prop key="Sy" unit="mm3" label="Plastic section modulus Sy" status="CALCULATED">47093</prop>
    <prop key="ry" unit="mm" label="Radius of gyration ry" status="CALCULATED">33.3696</prop>
    <prop key="yc" unit="mm" label="Centroid ȳ (from bottom)" status="CALCULATED">99.1002</prop>
    <prop key="J" unit="mm4" label="Torsion constant J" status="CALCULATED" note="Approximate thin-walled value, fillets neglected">39837</prop>
    <prop key="extArea" unit="m2/m" label="External surface area" status="CALCULATED">0.5364</prop>
  </properties>
  <source>
    <publisher>Pending verification – nominal dimensions entered by the application developer</publisher>
    <document>Derived from parent AS/NZS 3679.1 section (cut at mid-depth)</document>
    <edition/>
    <publicationYear/>
    <pageReference/>
    <lastUpdated>2026-10-12</lastUpdated>
    <verificationStatus>UNVERIFIED</verificationStatus>
    <notes>Tee obtained by cutting the parent section at mid-depth; cutting kerf neglected. Parent dimensions are UNVERIFIED.</notes>
  </source>
  <tags>
    <tag>popular</tag>
  </tags>
</section>
