Effects of Welding Heat Input on Microstructure and Electrochemical Behavior of Flux-Cored Arc-Welded Q690 HSLA Steel

<table class="table-group" id="tab2"><tr><td><table class="table"><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr class="thead"><td class="align_left">Yield strength (MPa)</td><td class="align_center">Tensile strength (MPa)</td><td class="align_center">Elongation (%)</td><td class="align_center">−20°C impact energy (J)</td></tr><tr><td class="thead-hr" colspan="4"><hr/></td></tr><tr><td class="align_left">700∼740</td><td class="align_center">680∼690</td><td class="align_center">≥16</td><td class="align_center">≥69</td></tr><tr class="table-tr"><td colspan="4"><hr class="tbody-hr"/></td></tr></table></td></tr></table>

<div>Mechanical properties of the Q690 steel.</div>

Advances in Materials Science and Engineering

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Table 2

Table 2: Effects of Welding Heat Input on Microstructure and Electrochemical Behavior of Flux-Cored Arc-Welded Q690 HSLA Steel 