Since we were talking about the range of enrichment roughly between 60% and 85% (weapons grade), I tried to look into what uses it has and the only one I saw was nuclear subs.

I can double check at work tomorrow because yes they use highly enriched but they also have next to nothing amount wise as a result....

The AUKUS submarines that the US is going to export to Australia is supposed to be at 93-97% HOWEVER we dont actually have anything that functions with levels that high at the moment. We do not have the materials science to handle that. It is only going to have a spoonful of fuel.... which I mean is great and all but again goes to show that we are expecting this technology to make some huge strides. 

There is a reason SMRs on land are not mainstream and out and about because its hard to build and maintain. 

Cje95

Politics_And_Law

U.S. Enters War With Iran, Striking Fordo Nuclear Site: Live Updates

The reference I found said at least 50%, but I'm certainly no expert on this.

Is that number universal or are there models that use higher levels?