what is the best metal to use when buying blocks?

[ORJBishop]

looking to custom water cool my PC build but after looking around online i have noticed that there are different metals on the blocks.

 

so was wondering which is better copper or nickel. (no budget)

 

thank you in advance. 

[Lolucoca]

copper for sure

[AresKrieger]

Copper has the better heat transfer

[Naeaes]

It's best not to mix metals that come in contact with the coolant. They can react and start corroding. So look into what your radiator is made of and get the same. Copper is better than aluminum or nickel but likely more expensive.

[SolarNova]

Irrelevant

 

When u see nickel blocks, they are usually just nickel plated copper.

 

Both metals are fine to use together, they don't react.

 

U'll probably find that the blocks are not 'pure' copper anyway and are infact an allow with 90% copper 10% nickel to prevent corrosion.

[ORJBishop]

thank you all copper it is then

[ORJBishop]

there is not a copper block for my GeForce GTX 970 DirectCU II OC Strix  only nickel from EK water block will it matter if i mix metals?

[SolarNova]

Its perfectly fine to mix copper and nickel, as i said before