Minimum Door Trim Radius???

Im currently framing my composite walls and I am having to confront my door design.
I would prefer for my doors to be rectangular with a radius at each corner; similar to the pre-built doors that you can buy. I was hoping to achieve a 6 inch radius at each corner but I know that that may be a stretch for the aluminum trim.
Please let me know if you have experience or opinions regarding how sharp flexible T molding can be bent without curfing it.
Thanks!
Brian
I would prefer for my doors to be rectangular with a radius at each corner; similar to the pre-built doors that you can buy. I was hoping to achieve a 6 inch radius at each corner but I know that that may be a stretch for the aluminum trim.
Please let me know if you have experience or opinions regarding how sharp flexible T molding can be bent without curfing it.
Thanks!
Brian