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<p>[QUOTE=&quot;Oldhoopster, post: 4870130, member: 84179&quot;]You&#039;re correct, I&#039;ve never taken a dryer apart, but I do know that the melting point of 25Ni75Cu alloy is approx. 1200C. </p><p><br /></p><p><a href="https://www.google.com/url?sa=i&amp;url=http%3A%2F%2Fsv.rkriz.net%2Fclasses%2FMSE2094_NoteBook%2F96ClassProj%2FOLD%2Fexamples%2Fcu-ni.html&amp;psig=AOvVaw0xj_fZAh3jlH_S6dvrrud-&amp;ust=1600450673614000&amp;source=images&amp;cd=vfe&amp;ved=0CAIQjRxqFwoTCLi_4Mbd8OsCFQAAAAAdAAAAABAd" target="_blank" class="externalLink ProxyLink" data-proxy-href="https://www.google.com/url?sa=i&amp;url=http%3A%2F%2Fsv.rkriz.net%2Fclasses%2FMSE2094_NoteBook%2F96ClassProj%2FOLD%2Fexamples%2Fcu-ni.html&amp;psig=AOvVaw0xj_fZAh3jlH_S6dvrrud-&amp;ust=1600450673614000&amp;source=images&amp;cd=vfe&amp;ved=0CAIQjRxqFwoTCLi_4Mbd8OsCFQAAAAAdAAAAABAd" rel="nofollow"><img src="https://sv.rkriz.net/classes/MSE2094_NoteBook/96ClassProj/OLD/examples/cu_ni.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /></a></p><p><br /></p><p>I wouldn’t expect the strength and/or hardness of the cupronickel alloy to be significantly reduced when the temp is raised from room temperature to only 200-300C.&nbsp; These aren&#039;t plastics.&nbsp; The heat doesn’t affect the steel components in the dryer.&nbsp; Your metal cookware doesn’t lose significant strength in a 200-250C oven.&nbsp; I just have a hard time believing that the metallurgical properties of the 75Cu25Ni alloy could be so different from metal dryer components at such relatively low temperatures.&nbsp; Maybe one of the metallurgists can let me know if I’m missing something.&nbsp; Until then, I just don’t see the data that indicates anything other than physical contact contributes to the appearance of a dryer coin.[/QUOTE]</p><p><br /></p>

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