Copper titanium alloys.

[BlueSwordM]

Well, there already are my BeCu C17530 springs:

Second Generation Silver Plated High Current Beryllium Copper Springs and 95+CRI SST20!

So, I’m here again guys with the BeCu spring groupbuy interest list. Only this is for the Part 2 GB with upgraded silver plated BeCu C17530 springs, instead of nickel plated springs. Just by doing that, we will be gaining a 5% increase in conductivity alone, which is nice, along with much better contact resistance. So that means even better spring for high current applications. Here are the specs of both the small and large springs: Small spring: Material: Beryllium Copper C17530 38% IACS S…

They are still very good, and in a dual spring setup, are absolute beasts and can handle 20A+ no problem.

Here’s my own: