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SOLUTIONS

Carbon equivalent

CE(IIW) = C +   Mn/6 + (Cr + Mo + V)/5 + (Ni + Cu)/15

CET = C + (Mn + Mo)/10 + (Cr + Cu)/20 +   Ni/40

Ceq = C + Si/24 + Mn/6 + Ni/40 + Cr/5 + Mo/4   + V/14

CEN = C + A(C) * (Si/24 + Mn/6 + (Cu +   Ni)/15 + (Cr + Mo + Nb + V)/5 + 5B), where A(C) = 0.75 + 0.25*tanh(20(C -   0.12)) 

Pcm = C + Si/30 + (Mn + Cu + Cr)/20 + Ni/60   + Mo/15 + V/10 + 5B 


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