On Nov 30, 3:26*pm, "Dave Plowman (News)"
wrote:
In article ,
* *Trevor Wilson wrote:

Most connectors are brass - to give more strength. Cable usually
copper.

**Only cheap, crappy crimps are brass. For copper wire, crimps should be
copper.

Depends on the use. I'd say the most common crimp terminals are in some
form of spring loaded contact. And those tend to be made of brass

Phosphor bronze or beryllium copper are the springy metals in common
use (it may LOOK like brass...). A well-made crimp requires lots of
thought about materials. Commonly, copper stranded cable works, a
copper stranded
cable with a couple of SS strands works, a copper solid cable of the
same gage doesn't work... and don't even TRY to crimp to a SS
cable with 'electronic' tools and lugs.

Even the professionals get it wrong sometimes (Al wire is just fine
with
the right electrode paste and crimp lugs, but has a bad reputation).
When amateurs get 'kits' and pliers at the dollar store, the result
isn't
pretty.