It is currently possible to bypass smelting most GT++ Alloys in the Electric Blast Furnace by using a Fluid Extractor-Solidifier setup. I'm assuming this is un-intended.
Using the latest GT++ version compiled from GitHub (7/18/2017)
Rongmario commented
Should disable Fluid Extractor recipes, that should patch it.
draknyte1 commented
Currently it's added for every item based on material. Should be an easy fix.