Weissen,
I think that it would be a bit hasty to credit the Greman Krupp Steel Works with the invention of 1137 steel as I understand it this steel is primarily a Open Hearth type of steel which was primarily an American steel product of Pennsylvania.
As I recall the German Krupp Works were using the Bessimer process.
I could be wrong there I'm just guessing with a "78 year Old's Memory".
ViggoG
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