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Help me design 2 Nordic knives...
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<blockquote data-quote="wintermute" data-source="post: 222207" data-attributes="member: 685"><p>Yeah, copper prices are ridiculous nowadays.</p><p></p><p>Basically, if you put two dissimilar metals of different electric potentials in contact with each other in a wet (or moist) environment, it sets up a cathode (copper) anode (steel) relationship with the water/electrolyte closing the circuit, causing electrons to flow from the steel (oxidation) to the copper, causing galvanic corrosion of the steel. Chances are you won't be submerging your knife, so it shouldn't be too bad, but enough moisture and the corrosion could still happen. If you look at properly installed plumbing systems, you will never see steel connected directly to copper. there will be a brass or dielectric fitting between the two. Unscrupulous gasoline tank (like at a gas station) installers used to toss pocketfuls of pennies on top of the steel tanks when they were being installed "for good luck" knowing that they would eventually get hired again to replace the tanks that had rotted out.</p></blockquote><p></p>
[QUOTE="wintermute, post: 222207, member: 685"] Yeah, copper prices are ridiculous nowadays. Basically, if you put two dissimilar metals of different electric potentials in contact with each other in a wet (or moist) environment, it sets up a cathode (copper) anode (steel) relationship with the water/electrolyte closing the circuit, causing electrons to flow from the steel (oxidation) to the copper, causing galvanic corrosion of the steel. Chances are you won't be submerging your knife, so it shouldn't be too bad, but enough moisture and the corrosion could still happen. If you look at properly installed plumbing systems, you will never see steel connected directly to copper. there will be a brass or dielectric fitting between the two. Unscrupulous gasoline tank (like at a gas station) installers used to toss pocketfuls of pennies on top of the steel tanks when they were being installed "for good luck" knowing that they would eventually get hired again to replace the tanks that had rotted out. [/QUOTE]
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