What are the best substances that a firing pin can be made out of

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Dzaw

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Solid silver with a pvd coating of gold at the contact points would be the best you could hope for at ambient temperatures. Almost all of the conductivity of silver, with the oxygen resistance of gold at the contact points. The tarnish that forms on the rest of the silver wont impact it's conductivity, but the silver oxide wont make good contact conductivity with the next surface in the circuit.
 

milescadre

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way too many posts to quote.

Generally, the most conductive metals are

Silver
Gold
Copper

Silver isnt used because its too expensive to be used as a wire, and gold is a hell of alot easier to plate with. Silver tarnishes, but doesnt oxidize, therefore conductivity doesnt change. This is why on speaker wire (high end speaker wire) you'll have a silver alloy wire as your positive and copper as the negative (if you ever used copper as a positive you'd notice it oxidizes liek crazy and your signal goes bad)

Gold plating is cheap enough, and doesnt oxidize. It also conducts almsot as well as silver, and can be plated alot thinner.

Copper oxidizes easily with electricity and whatnot.

Brass does indeed have a high copper content, thus brass should be ok. But brass is soft, so be gentle with your threads.

Steel, zinc, aluminum, etc all conduct electricity poorly (in comparison, of course), thus you dont want your pins to be made of these materials (espoecially aluminum.)

Silver Plated Brass is probably one of the hgiher end pins, I know my nemesis had em, and frankly I liked em alot over brass (but I'm a stickler for brass andi ts appearances)

hope my info is right and I helped ^^
 

milescadre

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I meant to say silver doesnt oxidize when you run a current through it unlike copper which has a horrible tendency to oxidize with a current run through it.

I wont perpetuate the argument on the speaker wire differences. I know high end speaker wire uses a silver alloy on its positive and copper for the ground. Just like cat6e specs call for gold plated connectors and even wiring if I'm not mistaken. THAT I will have to double check.

EDIT: Theres no current specification for Cat6e cable other than it must be shielded and its twisted pair configuration or something of the sort.

However, the speaker wire deal stays the same due to some HiFi enthusiasts believing that 6% better quality is worth the extra cost.
 
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