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Changes
→5.1.2 Pure Copper
be reversed easily by subsequent annealing. The softening properties are
strongly dependent on the preceding cold working percentage
''(Figs. 5.2 <xr id="fig:SofteningOfCu"/> and 5.3)''.
The purity of technically pure and un-alloyed copper used for electrical
Table 5.1: Material Designations of Some Copper Types
<figure id="fig:Strain_hardening_of_Cu_ETP_by_cold_working">
[[File:Strain_hardering.png|left|frame|<caption>Fig 5.1: Strain_hardening of Cu-ETP by cold working</caption>]]
</figure>
<div class="clear"></div>
<figure id="fig:SofteningOfCu">
[[File:SofteningOfCuETPafterAnnealing.png|right|Fig. 5.2:frame|<caption>Softening of Cu-ETP after annealing for 3hrs after 25% cold working</caption>]]
</figure>
<div class="clear"></div>
