Steel Dust
Steel Dust is a greatest dust ever. You can keep your 
Grinder and 
Industrial Blast Furnace busy by grinding ingot to dust and then back smelting dust to ingot!
Recipe
Crafting Table - Techreborn:steel Dust
Grinder - Techreborn:steel Dust
Usage
Crafting Table - Techreborn:small Pile Of Steel DustIndustrial Blast Furnace - Techreborn:steel Ingot