In this video, I showcase the construction of a propane furnace using scrap steel, glass wool, ceramic wool, and refractory cement. The aim is to replace an old coal furnace to facilitate more ...

No. 1 material of war is steel; and the U. S., with some 81,000,000 ingots a year, has about half the world’s steelmaking capacity. No foreseeable peacetime boom is likely to strain it. But for ...

Steel production in an electric arc furnace. Norenko Andrey/Shutterstock This method of steelmaking can use up to 100% scrap steel as its raw material, resulting in a significant reduction in carbon ...