CEMP-E
TI 809-26
1 March 2000
(4) For steels with C between 0.07% and 0.22%, the Ito and Bessyo equation may be used. The
CE = C + 5B + V/10 + Mo/15 + Mn/20 + Cu/20 + Cr /20 + Si/30 + Ni/60
Where
B = boron content (%)
A CE of 0.35% or lower is considered a steel with good weldability.
(5) The Yurioka equation may also used to calculate CE for steel with C between 0.02% and
0.26%, as follows:
CE = C + A(C) * {5B + Si/24 + Mn/6 + Cu/15 + Ni/20 + Cr/5 + Mo/5 + Nb/5 + V/5}
Where
Nb = niobium content (%)
A(C) = 0.75 + 0.25 * tanh [ 20 (C- 0.12) ]
4-8
Previous Page
