the chemical composition is actually very simple

challenge coins are made out of 100% pure challenge

Really?

I thought it was 25% challenge, 25% win and 50% palp aces?

the chemical composition is actually very simple

challenge coins are made out of 100% pure challenge

Really?

I thought it was 25% challenge, 25% win and 50% palp aces?

No they must be 33% Blood , 33% Sweat , 33% Tears and 1%luck

For some of my friends, apparently it's made out of 100% unobtainium

You're clearly all wrong.

They're made og 10% luck, 20% skill, 15% concentrated power of will.

5% pleasure, 50% pain...

I think its also made of 90% Crushed enemies and 10% lamentations of their women.....

That's why you catch it and slap it over onto the back of your hand, like any self-respecting tosser would.

You know I always suspected but now you've come right out an said it

the chemical composition is actually very simple

challenge coins are made out of 100% pure challenge

Really?

I thought it was 25% challenge, 25% win and 50% palp aces?

if it were 50% palp aces, it'd land on your desired result 75% of the time

It's probably plasteel.

nah I'm thinking durasteel

The easiest way would be to measure it density (ρ) under lab conditions (so you don't have eliminate variations in temperature, pressure etc), to narrow down the possible combinations of compositions

ρ = m / V

- m can be measured

- V is known, since the dimensions of the coin are known

This of course only yields and approximation, as it may be composed on an alloy or have a core of different material and an outer coating. For accurate results you would have to destroy the coin though.

Pewter is a Tin-alloy with about no more than 15-16 percent of another metal, Lead isn't really used to make Pewter anymore (instead they use mixes Copper, Antimon and Bismut) but the Lead-Pewter can have up to 15% Lead-content (however high lead-content tends to be visible as the alloy would no longer be white/grey as Tin is). The harder to alloy the higher the secondary metal content, as a rule of thumb for Tin.

To test the lead content accurately you would have to break the coin appart chemically, but as a cruch testing the electric conductivity of the alloy may yield an approximation, however I don't know if that will more for Pewter.

It could be an alloy called ZaMaC. Often used for die cast stuff. Relatively light, strong and won't tarnish.

Midichlorians and plot armor...

Does a magnet stick to it? If yes, some kind of Iron, if no then some kind of alloy.

Just tested. Not magnetic at all.

Actually, if you have a good neodymium magnet, it will be faintly attracted to the challenge coin. I think it is possible that the coins are 300 series stainless steel (nickel and iron).

You're clearly all wrong.

They're made og 10% luck, 20% skill, 15% concentrated power of will.

5% pleasure, 50% pain...

And 100% reason to remember the name.

I'm not sure if I'm happy that I knew that lyric.

Challenge coins can be made out of copper, brass, iron or zinc alloy but are primarily made out of brass.

The challenge coin pictured below is die struck brass.