Steel | Composition, Properties, Types, Grades, & Facts | Britannica
2024年11月19日 · steel, alloy of iron and carbon in which the carbon content ranges up to 2 percent (with a higher carbon content, the material is defined as cast iron). By far the most …
Steel - Production, Uses, Types | Britannica
Steel - Production, Uses, Types: The steel industry has grown from ancient times, when a few men may have operated, periodically, a small furnace producing 10 kilograms, to the modern …
Iron processing | Definition, History, Steps, Uses, & Facts - Britannica
iron processing, use of a smelting process to turn the ore into a form from which products can be fashioned. Included in this article also is a discussion of the mining of iron and of its …
Architecture - Iron, Steel, Structures | Britannica
Architecture - Iron, Steel, Structures: The development of construction methods in iron and steel was the most important innovation in architecture since ancient times.
How iron is turned into steel - Encyclopedia Britannica
Iron ore is one of the most abundant elements on Earth, and one of its primary uses is in the production of steel. When combined with carbon, iron changes character completely and …
iron and steel industry - Students | Britannica Kids | Homework Help
Scrap metal, iron ore, and alloys are refined in the furnaces along with the pig iron and account for part of the weight of the finished steel. In 1990 the Soviet Union, Japan, and the United States …
Steel - Smelting, Alloying, Refining | Britannica
The major iron-bearing raw materials for steelmaking are blast-furnace iron, steel scrap, and direct-reduced iron (DRI). Liquid blast-furnace iron typically contains 3.8 to 4.5 percent carbon …
Shoudu Iron and Steel Works | factory, Beijing, China | Britannica
…large industrial establishments is the Shoudu Iron and Steel Works, located about 9 miles (14 km) west of the old city. The Shoudu plant was originally started in 1920 and made use of local …
Hand tool - Iron, Steel, Tools | Britannica - Encyclopedia Britannica
Hand tool - Iron, Steel, Tools: Iron technology was derived from the known art of reducing copper and bronze. The principal requirement was a furnace capable of maintaining a reducing …
Blast furnace | Definition, Temperature, Diagrams, & Facts
2024年12月3日 · Blast furnace, a vertical shaft furnace that produces liquid metals by the reaction of a flow of air introduced under pressure into the bottom of the furnace with a mixture of …