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Carbon equivalent
From GAWDAwiki
Carbon equivalent (CE) is an empirical term, used to express hardenability, representing the effects of alloying elements in a steel on its hardenability, which allows welding engineers to estimate requirements for pre-heat, interpass, cooling rate, etc. to achieve a successful weld in that steel. As the CE increases, so too does the degree of difficulty in welding. The IIW equation for determination of CE is as follows: CE = %C + %Mn/6 + %Cr/5 + %Mo/5 + %V/5 + %Ni/15 + %Cu/15.[1]
