The Invention of Steel
Steel Making is a complicated process. It is composed of mostly iron and from 0.2% to 2.1% carbon. Iron is an ore found in the earths crust. Its ground and melted into liquid iron. Then oxygen is pumped into it which gets rid of most of the carbon. This makes it steel. Its much stronger and won't rust. Its strength allows it to hold and support bigger and taller buildings and bridges.
Andrew Carnegie
In the 1870s Andrew Carnegie founded a steel company called the "Carnegie Steel Company". By the 1890s it was the most profitable industrial enterprise in the world. He sold his Company in 1901 for 480 million dollars to J. P. Morgan, who created U.S. Steel.
Inventions Made from Steel
Some inventions made from steel are:
Railroads
Skyscrapers
Many tools
Cars
Weapons
Buildings
Lots of every day things
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