One thing I've been sort of curious about with non-carbothermal iron ore reduction is whether it could bring back wrought iron. Wrought iron disappeared around the 1960s due to high production costs — the crude product contains carbon, which must be removed by working — but iron produced with hydrogen or electricity will not have a chance to absorb carbon like this. There's more to it than that — you have to achieve a particular grain structure and fibrous silicate inclusions. But the corrosion resistance is nice — some wrought iron fencing in the highly corrosive atmosphere of New Orleans persists to this day. One paper reported that the corrosion resistance is better than mild steel but lower than weathering steel — but without creating the stains we associate with weathering steel:<p><a href="https://core.ac.uk/download/pdf/237170109.pdf" rel="nofollow">https://core.ac.uk/download/pdf/237170109.pdf</a>