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Equivalent carbon content
The equivalent carbon content of a steel alloy refers to method of measuring the maximum hardness and the weldability of the alloy based on the chemical composition of the alloy. Higher concentrations of carbon and other alloying elements such as manganese, chromium, silicon, molybdenum, vanadium, copper, and nickel tend to increase the hardness and decrease the weldability of the material. Each of these materials tends to influence the hardness and weldability of the steel to different magnitudes, however, making a method of comparison necessary to judge the difference in hardness between two alloys made of different alloying elements. The equivalent carbon content is the most common such standard, but others exist, such as the equivalent nickel content and the equivalent chromium content (usually used together and in conjunction with the Schaeffler-Delong diagram and considered more accurate for measuring weldability). A commonly used formula for calculating the equivalent carbon content is:
Additional recommended knowledge
The resulting equivalent carbon coefficient allows the alloy to be categorized alongside plain carbon steels, and have their weldability and hardness properties compared with them.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Equivalent_carbon_content". A list of authors is available in Wikipedia.|