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  <xsd:element name="SteelDynamicsInc.BiocarbonSolutionsMember" id="stld_SteelDynamicsInc.BiocarbonSolutionsMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="NewProcessSteelLpMember" id="stld_NewProcessSteelLpMember" type="dtr-types:domainItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
  <xsd:element name="EquityReconciliationLineItems" id="stld_EquityReconciliationLineItems" type="xbrli:stringItemType" substitutionGroup="xbrli:item" nillable="true" xbrli:periodType="duration" abstract="true" />
</xsd:schema>
