Diagnosis of the Diatom Community upon Biofilm Development on Stainless Steels in Natural Freshwater

Table 1

Standard designations and chemical composition (wt.%) of stainless steel (SS) types used in this study.

AISI designation	ISO designation	wt.%
		C	Si	Mn	Cr	Ni	Mo	N	Cu	Fe
304L	X2CrNi18-9	0.022	0.18	1.34	18.20	8.15	—	0.094	0.075	Balance
316L	X2CrNiMo17-11-2	0.019	0.48	1.65	16.8	10.61	2.58	0.041	0.36	Balance
254SMO	X1CrNiMoCuN20-18-17	0.020	0.80	1.00	20.00	18.00	6.25	0.020	0.75	Balance