What is the cast iron?

cast iron has become a synonym for durability - a cast -iron stomach or alibi. But as metals go, it is actually something like a stew. While pig iron, which forms its base, is melted, iron and steel often throw into the mixture.

When the process is complete and dirt, such as sulfur, is deducted, the final product is actually only 95% iron. The rest of the chemical make -up is primarily carbon and silicon, in different percentage. All more than 2% of silicon is known as "gray cast iron", while a smaller amount gives birth to a "white cast iron". The "white" form is not in fact white, but it gets its name from a reaction with an increased carbon that creates small white deposits of cementite on an otherwise dark surface.

Despite its metaphorical legend, the cast iron is more fragile than pure iron and steel and melts at a lower temperature. When it comes to industrial applications, it's not a bad thing, because it does the metal by more than the metal and thus quite universal. Its first application in China of the 17th century was like cannon balls and coveredEna. Today it is used in pipes, machines, automotive components and perhaps most often in pesters.

The

cast iron pelvis, which served the grandmother so well, has enjoyed something like a comeback in recent years, because some people have become wary of Teflon® paint as perhaps unhealthy. With this revival, however, it has been renewed aware that the use of this metal for cooking often requires considerable alertness.

If it is not correctly "spicy", cast iron can often cause food cooking such as eggs to hold on to the surface. Unlike non-stick dishes, cast iron actually combines fats and oils to modify its surface-more longer used pelvis made of this metal, the more user-friendly becomes. Many professional chefs are fans of metal, which praise heat and evenly radiating surface.

cast iron bridges are generally relics 18 and 19. century, although some survive. The use of this metal was also considered a breakthrough in the construction store at the beginning of the 20th century due to its weight capacity, but moved to side places when new forms of steel were introduced. After the towers of the World Trade Center collapsed on September 11, 2001, a large cast -iron cross was dug out of the debris, still intact.