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Our carbon equivalent calculator is simple to use: Enter the weight percentage composition of each alloying element in their respective fields. Ensure you don't leave blanks — if any element is absent in your alloy, enter 0 in its field. The calculator will automatically determine the carbon equivalent in the following manner:
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Further development of Carbon equivalent formulae has taken place and several can be found in technical literature today. Three of the more common ones are P cm, CEq and CEN. Ito and Bessyo [5] developed P cm in Japan based on a wider range of steels than the IIW formula:
The carbon equivalent PCM is based on Japanese results from Ito and Bessyo in 1969 [7]. It can be used for short cooling times and root welding [8]. Equation: PCM = C + Si/30 + (Mn + Cu + Cr)/20 + Mo/15 + Ni/60 + V/10 + 5*B. CEM.
The carbon equivalent is a measure of the tendency of the weld to form martensite on cooling and to suffer brittle fracture. When the carbon equivalent is between 0.40 and 0.60 weld preheat may be necessary. When the carbon equivalent is above 0.60, preheat is necessary, postheat may be necessary.
26 paź 2020 · Carbon equivalent is the key to predicting steel behavior. The equivalent carbon content concept is used on ferrous materials, typically steel and cast iron, to determine various properties of the alloy when more than just carbon is used as alloying elements.
Use the calculators below to calculate approximate CEQ / PCM for common and low carbon steels. Results will be indicated in bold after the necessary inputs have been entered first. Carbon Equivalent does not require a value for Silicon or Boron.
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.
