Hard Lines 101

[GRX]

Originally Posted by MagmaJct

My understanding is that copper will work harden over time and crack. Does the nickel help this?

You are right about the older style pure copper lines becoming brittle. The NiCopp stuff is a Copper/Nickle/Iron/Manganese alloy which is said to be quite durable. I did some reading before buying line for my C-10 project. Many car restores swear by it and it''s all they use now. And certain European car mechanics said they have serviced Volvo and Rolls cars where the alloy lines are still in great condition after 40+ years.