Shane Tuttle
Staff
STILL haven't called Hornady yet. It's going to have to wait until I get back in town in mid Feb...
HARDNESS
The hardness of TiN coatings is difficult to measure as the coatings are exceptionally hard and the thinness of the coating causes conventional hardness tests to penetrate into the substrate. Nanoindentation hardness tests are required for accurate readings.
SL1 wrote
So, the pure chemical is hard. But, in effect, its coating on a die surface is not so hard, because it is so thin that it is the underlying steel that actually resists pentration by a piece of sand or expansion when forcing an over-size object into the die.
Sounds like the TiN dies are full-length tapered dies (like steel dies) with a hard slipperly coating. That should be a good system, but it also has a lot more bearing surface than a die with a carbide ring.
So it took 2 months for a replacement? Gee, that was fast...Coincidentally, I just received my replacement die last week.