Monday, April 15, 2013

Steel: support for modern civilization


When the surface is insufficient to support the demographic, civilization grows in height. When the blood drive is not fast enough, the traction civilization hydrocarbon develops. When many hands in the dish done scribble civilization replaces them with a machine. But what links this progress? Steel is the backbone of modern civilization.

Commonly called an alloy steel of iron and carbon, wherein the carbon is not more than 2.1% by weight of the composition of the alloy, usually reaching percentages between 0.2% and 0.3%. Ratios greater than 2.0% carbon results in foundries, which, unlike steels are brittle and can not be forged, but which are molded. Iron alloys between the metal and any other not improve its physical properties also called steel.

Components: Iron is a metal, relatively hard and tough, with a melting temperature of 1,535 ° C and boiling point 2740 ° C. Carbon is a nonmetal, soft and fragile in most allotropic forms (except the diamond in its crystal structure makes it the hardest known materials).

As already noted the variety and availability, its two primary elements are abundant in nature facilitating their production on an industrial - steels are alloys used in the construction of machinery, tools, buildings, automotive and civil engineering, having contributed the high level of technological development of industrialized societies.

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