Really interesting program, worth watching on Iplayer if you missed it. Filled in lots of gaps in my knowledge, especially how Bessemers process was a failure until the chemist (missed his name) stepped in to suggest adding the 1% carbon back in after removing all the carbon with the air process.
That single crystal turbine blade at the end was amazing.
Whats iron with all the carbon removed called ? .
The facetious answer is IRON..........sorry
I think what you mean is "most of the carbon removed" and that is STEEL and dependednt on how much is removed MILD STEEL
yes but the bessimer process removes all, or nearly all the carbon and then some 1% is returned , so the metal is basically mild or dead mild steel ?
A mixture, which is why it is rust resistant and cant be welded.
Also very expensive to buy as scrap as almost nobody is making it these days,
Ain't that the truth?...How odd to have a documentary presented by somebody who knows what they are talking about...
I was offered a while heap of proper Wrought iron cheap recently.
Of no relevance to me, I tried a load of blacksmiths I know and nobody was interested.
It got weighed in as scrap.
Seemed sad to me.
Coming to this late (and I can't see the programme because I'm in Pittsburgh) but when they were looking to build the frames of the next steam engine "Tornado" the only information on the drawings about the material was use "Best Yorkshire Steel". I used to work with the Project Manager of Tornado and he explained how they found an equivalent. Apparently, if you take the red hot steel and put it through a set of rollers you get "Yorkshire Steel". If you then fold it over and pass it back though the rollers (orientate the crystals slightly better) you get "Best Yorkshire Steel". if you then fold it over and pass it back through again, you get "Best best Yorkshire Steel" and one more time is the most to get "Best best best Yorkshire Steel".
Fascinating eh!
Cheers
Peter