Alloy Caster – machine that makes an alloy of two provided items. It can be upgraded (or downgraded) with Flux Chip.
This machine has 2 input slots. There are no checks for alloying recipes with a single item (in that case the second slot must be empty).
All recipes for Alloy Caster have type
flux:alloying. Provided recipes can be used to combine tin and copper into bronze or iron and coal into steel.