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<p>[QUOTE=&quot;Hallingood, post: 1828523, member: 53766&quot;]Stainless steel by definition must have at least 10.5% <span style="color: #000000"><a href="http://en.wikipedia.org/wiki/Chromium" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://en.wikipedia.org/wiki/Chromium" rel="nofollow"><span style="color: #000000">chromium</span></a>.&nbsp; The war penny does not have that concentration of chromium.&nbsp; As far as I can tell no US coin has.&nbsp; The chromium is an extremely hard and wear resistant.&nbsp; That is why it is commonly used in drill bits.&nbsp; India makes several denominations that are stainless.&nbsp; :</span></p><p><span style="color: #000000"><br /></span></p><p><span style="color: #000000"><img src="http://3.bp.blogspot.com/-on-LUsXWZh4/TsjtC33mTrI/AAAAAAAAAl4/uxZ6Uw7aZzc/s1600/New-50p%252C-2011-400.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /> </span></p><p><span style="color: #000000"><img src="http://2.bp.blogspot.com/-TxG_SFBZ0EA/TfOjZMZWfII/AAAAAAAAAgo/65GuUffbS8Y/s1600/10+p-FSS.jpg" class="bbCodeImage wysiwygImage" alt="" unselectable="on" /> </span></p><p><span style="color: #000000"><br /></span></p><p><span style="color: #000000">Coins of this type do show wear over time as with all coins.&nbsp; The process does take longer due to the chromium in the alloy.&nbsp; The 10 Paise above contains 18% chromium and does show some wear.&nbsp; This has probably been well circulated coin but due to it being so durable shows little wear.&nbsp; Nickle is another material that is durable and tends to make the coins wear more slowly like our modern US coins but it is not considered stainless steel. </span></p><p><span style="color: #000000"><br /></span></p><p><span style="color: #000000">On a side note. Stainless steel is not fully stain-proof, most notably under low oxygen and high salinity.</span>[/QUOTE]</p><p><br /></p>

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