TechReborn ha a recipe conflict with my mod, the material api. when i smelt iron in a furnace my mod Outputs an Ingot with the oredict entry ingotSteel but your refined iron has not this entry. please add the oredict entry ingotSteel to Refined iron.

oh, ok. in the old ic2 it was steel because of that i thought that it is also steel here.

Refined iron is not steel, it's its own material