Effect of the Cryogenically Treated Copper Nozzle Used in Plasma Arc Machining of S235 Steel

<table class="table-group" id="tab3"><tr><td><table class="table"><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr class="thead"><td class="align_left">Density</td><td class="align_center">Melting point</td><td class="align_center">Ultimate tensile strength</td><td class="align_center">Elongation</td><td class="align_center">Yield strength</td></tr><tr><td class="thead-hr" colspan="5"><hr/></td></tr><tr><td class="align_left">7850 kg/m<sup>3</sup></td><td class="align_center">1480–1526°C</td><td class="align_center">360 MPa</td><td class="align_center">20%</td><td class="align_center">235 MPa</td></tr><tr class="table-tr"><td colspan="5"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Physical and mechanical properties of steel S235.</div>

Advances in Materials Science and Engineering

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Table 3

Table 3: Effect of the Cryogenically Treated Copper Nozzle Used in Plasma Arc Machining of S235 Steel 