Hardened Steel Hot Ends for Carbon Printing

Yes, any E3Dv6 compatible nozzle will work on the hexagon.

 

Not the volcano ones (you linked to a volcano nozzle), but the regular E3D compatible hardened steel nozzles will work fine:

https://e3d-online.com/hardened-v6-nozzles

 

Good catch

 

You need to print a few kilograms to see a significant wear in most cases. That said, it does vary by filament Some folks have reported significant wear after one spool. Can't say that I have seen that myself, but it apparently does happen.

 

My own opinion was that if you are using Amazon or a cheaper Chinese source for your nozzles why not just dump them every time they either clog or after a month. It is cheap insurance and I have seen nozzles in lots of 100 or more for $0.33 per nozzle

 

Exactly and if we are using a non-normal sized nozzle on a printer now we just do exactly that. For the common nozzles we use on each printer (they are all different sizes) I went with hardened steel and no wear ... yet on those. Nozzles are as @WheresWaldo points out ... really cheap.

 

Wear rate depends on filament type and the geometry of what is being printed. My first experience with nozzle wear was in a post on the Ultimaker forum where someone was posting about a brand new brass nozzle that had ground down to nothing over the course of a very long print with glow in the dark. I was pretty firmly in disbelief until I replicated it. So, if you're printing parts with lots of islands and using an abrasive filament, you may need hardened or ruby just to get through the print.
If you're printing relatively simple geometry, then a simple brass nozzle might last a long time.