What you see in the photo is a solder spot that was soldered onto 0.15mm pure nickel and the nickel was bent on purpose in order to catch it with a long nose needle pliers from the side and pull it out.
Everytime I did this test on pure nickel it seemed like it got pulled off of a nickel plated strip.
I tested every nickel strip roll I receive with the salt water test and the sparks test (caught a fake once with the spark test) and of course when welding pure nickel there is the need for alot more power from the welder than junk plated strip.
I just don't get why it looks like it got pulled with a top layer of nickel plating.
If you are going to say it isn't pure nickel just try it before replying, let a drop of solder (I use Kester 63/37) and let it expand so I know it's well soldered and then fold the strip backwards to expose the sides of solder joint and peal it with a set of long nose pliers and see that you get the exact same thing.
A darker non reflective spot that has a trim around it like the solder spot was pulled with the nickel that plated that non reflective material underneath.
But it only looks like it, I'm 100% sure it's not nickel plated strip.
Years ago when I used nickel plated strips it was welded with the lowest setting possible on the welder and when switched to pure nickel it took my old welder to the max and that same pure nickel strip showed the same result when I did the solder drop test.
What do you guys think?
