Quote Originally Posted by ScienceGuy View Post
As Zak said, a lot of ore came from Sweden. W&S Butcher had a start refining steel, where they would use ores like that to make steel, so in a sense it was both Swedish and Sheffield. But the composition of the steel had a lot to do with the composition of the ores (chemical knowledge and control of the material was not what it is now).
Thanks I knew about Sheffield steel using Swedish ore but somehow I got it in my head that they also sometimes used Swedish steel.