[Yo-Yo]

And Carbon. First and foremost Steel is an alloy of iron and carbon.

Came here for this.

Maybe they can make low temp iron, but unless they're going to make Lodge frying pans, they need to add carbon to iron to make steel.

[fireman15]

Maybe they can make low temp iron, but unless they're going to make Lodge frying pans, they need to add carbon to iron to make steel.

Yes, this entire article has me and everyone else who has ever worked with metal of any type scratching their heads. Pure metal of any type is typically not as useful as various alloys. 14k gold is only 58.3% gold and 41.7% other metals, like copper, silver, nickel, or zinc which make it much stronger than 24k gold which is 99.9% gold.

When I am casting lead to make bullets, pure lead is only used for pistol bullets because it is so soft and cannot be heat treated. Iron is useful for some purposes but high strength applications are not one of them.

[Openurmind]

Yep, fact. :)

[GingisK]

Cast iron has a much higher carbon content than steel.