read the just curious - cast iron from unknown sources discussion from the chowhound cookware cast iron food community. join the discussion today. the iron used for pans was one step up from pig iron the first product of the blast furnace. steel is a more refined product. read the just curious - cast iron from unknown sources
the carbon in the steel-making pig iron is existed by the carbide form and has the cross section of white usually known as white iron. the performance of steel-making pig iron is hard and brittle so it is generally used as materials of cast steel. the form of carbon in the foundry pig iron is graphite flake and its fracture is gray
but it's not like 'virgin' iron ore was that pure. smelters have always had to deal with impurities of kind or other. and cast iron was often made from pig iron the first stage of refining. wrought iron and steel require further refining. part of why cast iron is thicker than carbon steel is that it is more brittle.
read the denby enameled cast iron cookware discussion from the chowhound cookware enameled cast iron food community. join the discussion today. companies that just send a design over to the pacific rim end up buying a pig in a poke.
use of high purity pig iron for foundries producing ductile iron castings high purity pig iron (hppi) is differentiated from other types of pig iron by its low manga-nese phosphorus and sulphur contents. hppi is manufactured from the smelting of ilmen-ite sand in electric furnaces to produce titanium dioxide slag and pig iron. production facil-
the use of foundry pig iron in grey iron castings • pig iron is produced mainly by the smelting of iron ore in blast furnaces with coke or charcoal as reductant. it is a high fe low residual metallic material and should not be considered as a scrap substitute but rather as a source of clean iron units that can be