Empirical Study of the Effect of Nanocoolant Particles on Corrosion Rate of 316 Stainless Steel

Table 7

Original and coded variables.

Level	Code	Rotational speed (rpm)	Temperature (°C)
Axial point	√2	1500	70
High	1	1100	60
Center	0	700	50
Low	-1	300	40
Axial point	-√2	0	30