Japan's Steel Industry - Rebuilding after 1945 - Ore to Steel and Building Construction

It's pretty amazing isn't it. Seeing a blast furnace built and fired up to running, from scratch.

@Life_N_Times_of_Shane_T_Hanson: I honestly don't think we could do it again today,! We're lucky that we can keep already existing steel plants running!

I could double check the output in tonnage, and compare it to the modern mills, as there is a limit to how much the air blast can penetrate into the mix of iron ore, scrap, lime and coke / coal, BUT it was worked out that coarsely grinding all the ingredients and then pressing them into large-ish briquettes, made for a mass of combustibles, that the blast air could penetrate much further into, and air pressures I think, have also risen quite a great deal since then, so the furnaces are much bigger, and they run a lot harder, and making this up a bit, I think the iron production has gone from 150,000 tons in this furnace to I think 1.3 - 1.5 million tons per year in the modern blast furnaces..... (or maybe it was the steel making site)