Research Article

Optimization of Conversion Treatment on Austenitic Stainless Steel Using Experimental Designs

Table 2

Factors and their levels for the experiments.

H2SO4 % (°C) Na2S2O3, 5H2O C3H4O %Treatment time (min) Surface state
g/L

−1+1−1+1−1+1−1+1−1+1−1+1
0.2240700.51.500.251030SandedMicroball