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<p>[QUOTE="cladking, post: 1035015, member: 68"]Nickel is strongly magnetic but combined with iron the resultant is often not magetic. It's a complicated world. You can do a lot of things with steel and it will still be magnetic but you can't add much nickel. Even nickel tends to not be magnetic unless it's nearly pure. </p><p><br /></p><p>Bad mixing of the metals can easily result in the things you mention. The 2L is much more interesting and one is left to believe striking the metal caused it to be magnetic. Planchets have the rim raised up in the upsetting mill so there is more metalo to form the rim. Most coins will experience more striking pressure around the periphery than elsewhere despite the fact that this is where poor metal fill first appears. It's the coin between the design elements that recieve this additional pressure and the fact is evidenced by the fact that die wear normally first shows up around the periphery (and design elements).</p><p><br /></p><p>Interestiong post. Thanks for the info.[/QUOTE]</p><p><br /></p>
[QUOTE="cladking, post: 1035015, member: 68"]Nickel is strongly magnetic but combined with iron the resultant is often not magetic. It's a complicated world. You can do a lot of things with steel and it will still be magnetic but you can't add much nickel. Even nickel tends to not be magnetic unless it's nearly pure. Bad mixing of the metals can easily result in the things you mention. The 2L is much more interesting and one is left to believe striking the metal caused it to be magnetic. Planchets have the rim raised up in the upsetting mill so there is more metalo to form the rim. Most coins will experience more striking pressure around the periphery than elsewhere despite the fact that this is where poor metal fill first appears. It's the coin between the design elements that recieve this additional pressure and the fact is evidenced by the fact that die wear normally first shows up around the periphery (and design elements). Interestiong post. Thanks for the info.[/QUOTE]
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Italian coin steel / problems identifying?
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