I just found 2 vanilla scimitars and decided i was going to use them and was wondering if theres a mod that makes it so scimitars can be made out of more materials than steel....if possible please provide the name or link...thanks.

Immersive Weapons and/or Jaysus Swords both add scimitars or scimitar variants.

I've made mine craftable with corundum and steel and improvable with corundum. It's so easy to do, why don't you do it yourself?