Table 4.

Corrosion current density values determined in stage II of measurements for individual series of specimens (non-immersed and immersed parts).

	Specimens SF_0.25		Specimens SF_0.50		Specimens C
	Air	Solution	Air	Solution	Air	Solution
Stage II	4.60	2.95	3.47	2.61	3.30	3.66
	3.14	2.87	3.13	2.69	3.47	3.14
	2.45	10.68 *	3.23	2.77	3.59	3.28
	2.36	2.33	3.52	2.52	4.14	3.61
Mean value (MPa)	3.14	4.71 (2.72)	3.34	2.65	3.63	3.42
Standard deviation (MPa)	0.90	3.46 (0.28)	0.16	0.09	0.31	0.22
Coefficient of variation (%)	29	70 (10)	5	4	9	6