
Пожалуйста помогите с английским очень прошу To understand metals, start with iron. As a basic
chemical element Fe, iron is the most abundant metal on Earth. For many centuries, iron furnaces have heated limestone and iron ore that was excavated from the ground. The intense heat melts the both the rock and iron ore, along with several chemical reactions and the lighter liquid rock rises to the top and the heavier liquid iron sinks, creating pig iron. This pig iron is an intermediate step on the way to a final product. Historically, wrought iron was a building product made from thё is pig iron. The wrought iron was mostly pure iron (with some slag and small amounts of carbon added). Wrought iron was actually “wrought” (i.e. worked or hammered) into bars and has been used as a construction material for thousands of years. Wrought iron is tough and ductile, easy to weld. Lacking the carbon content for tempering, wrought iron is not hard enough to hold a good edge for a tool or weapon. Other final products from the pig iron are alloys. An alloy is a combination of two or more elements, in which at least one is a metal. Most metals used for construction purposes are alloys. For example, steel is an alloy with iron and carbon being the primary elements. Generally, iron-carbon alloys with up to 2.1% carbon by weight are considered steel and iron-carbon alloys with greater amounts of carbon are cast iron. Cast iron is made by re-melting pig iron in a blast furnace, removing undesirable elements like phosphorus and sulfur, adjusting carbon levels and adding other elements. The resulting alloy, commonly called grey cast iron, has a high corrosion resistance and strong compressive strength, but tends to be brittle and difficult to weld. Historically, cannons and cannon balls were made from grey cast iron, as well as some early bridges. Steel is an alloy that finds tremendous number of uses in today’s construction world. Hot rolled steel shapes, most commonly found as steel beams and columns on construction projects, are created in steel mills by rolling the heat steel between large rollers, deforming the steel into the typical shapes: W, S, C, angles, tube sections, pipes, etc. Most hot formed steel is either 36,000 psi or 50,000 psi yield strength.

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Sure, I'd be happy to help you with your English! Let's go through the text and make sure you understand the key points:
Iron is the most abundant metal on Earth, and it is a basic chemical element represented by the symbol Fe.
Iron ore and limestone are heated in iron furnaces. The intense heat melts both the rock and iron ore, and through chemical reactions, the lighter liquid rock rises to the top while the heavier liquid iron sinks. This process creates pig iron, which is an intermediate step in the production of iron.
Historically, wrought iron was made from pig iron. Wrought iron is mostly pure iron with some slag and small amounts of carbon added. It was worked or hammered into bars and has been used as a construction material for thousands of years. It is tough, ductile, and easy to weld but not hard enough to hold a good edge for tools or weapons.
Pig iron can be further processed to create alloys, which are combinations of two or more elements, where at least one of them is a metal. Alloys are commonly used for construction purposes. One such alloy is steel, which is a combination of iron and carbon. Steel with up to 2.1% carbon is considered steel, and higher carbon content results in cast iron.
Cast iron is made by re-melting pig iron in a blast furnace and adjusting carbon levels and adding other elements. The resulting alloy, known as grey cast iron, has high corrosion resistance and strong compressive strength but tends to be brittle and difficult to weld.
Historically, grey cast iron was used to make cannons, cannon balls, and some early bridges.
Steel is widely used in modern construction. Hot rolled steel shapes, such as beams and columns, are created in steel mills by rolling heated steel between large rollers, deforming it into the desired shapes (e.g., W, S, C, angles, tube sections, pipes). Hot formed steel typically has either a 36,000 psi or 50,000 psi yield strength.
If you have any specific questions or need further clarification on any part of the text, feel free to ask!


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