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The carbon equivalent (CET) formula is convenient for analyzing Q + T steels and their cold cracking behavior. The CET equation gives information about the combined effects of different alloying elements, as compared to only carbon.
Carbon equivalent formulae were originally developed to give a numerical value for a steel composition which would give an indication of a carbon content which would contribute to an equivalent level of hardenability for that steel.
Use the values in the IIW formula for carbon equivalent: CE = C + Mn/6 + (Cu + Ni)/15 + (Cr + Mo + V)/5 = 0.20 + 0.90/6 + 0 = 0.35. Visit our carbon equivalent calculator to calculate the CE value using other formulae.
In welding, carbon equivalent (CE) calculations are used to predict heat affected zone (HAZ) hardenability in steels. These CE equations can be used to establish criteria to predict cold-cracking, as they can predict maximum hardness.
This review provides a systematic overview of various carbon-based composite PCMs for thermal energy storage, transfer, conversion (solar-to-thermal, electro-to-thermal and magnetic-to-thermal), and ...
1 maj 2010 · It is shown that carbon equivalent formulae are designed to measure certain mechanical performance of the steel weld metals as well as their hardness rather than microstructural content. A new formula is also proposed to predict weldability by including Ti content of the steel weld metal.
In 1958, eighteen years after Dearden and O’Neill’s initial proposal on carbon equivalent (CE), the concept was accepted by British Standard BS2642[1]. The standard was then amended to include the following modified version of their equation: C+Si/24+Mn/6+Cr/5+Ni/13+. CE = (1) V/5+Mo/4+Cu/15.
