Calculation of Carbon Equivalents for Mechanical Properties of Basic Weld Deposit (Report 2)

Stress Relief Annealing

Abstract

Using the same method as 1 st report, the authors calculated carbon equivalents for mechanical properties of high strength basic weld deposit treated stress relief annealing.
Further the authors searched for the equations between carbon equivalent and the values of mechanical properties of weld deposits.
The results obtained in the study are follows:
Ceq^S.R(Y.P)=C+0.08 Si+0.10 Mn+0.04 Ni+0.12 Cr+0.25 Mo
Ceq^S.R(T.S)=C+0.09 Si+0.06 Mn+0.03 Ni+0.09 Cr+0.17 Mo
Ceq^S.R(EL)=C+0.14 Si+0.11 Mn+0.03 Ni+0.16 Cr+0.14 Mo
Ceq^S.R(E₀)=C+0.27 Si+0.07 Mn+0.05 Ni+0.19 Cr+0.20 Mo
Ceq^S.R(E_-40)=C+0.38 Si+0.09 Mn+0.05 Ni+0.23 Cr+0.20 Mo
Y.P (kg/mm²)=29.2+80.2 Ceq^S.R(Y.P)
T.S (kg/mm²)=26.4+147 Ceq^S.R(T.T)
EL (%)=37.1-29.1 Ceq^S.R(EL)
E₀ (kg-m/cm²)=48.1-69.2Ceq^S.R(E₀)
E_-40 (kg-m/cm²)=28.7-37.4 Ceq^S.R(E_-40)