Assessment of Automotive Coatings Used on Different Metallic Substrates

Table 1

Chemical composition of the used substrates.

(a) Steel

Element	C	P	S	N	Fe
Weight (%)	≤0.18	≤0.05	≤0.05	≤0.009	Rest

(b) Steel for hot-dip galvanizing

Element	C	Mn	P	S	Fe
Weight (%)	≤0.17	≤1.4	≤0.045	≤0.045	Rest

(c) Steel for electrogalvanizing

Element	C	Si	Mn	P	S	Al	N2	Fe
Weight (%)	≤0.041	≤0.009	≤0.28	≤0.007	≤0.008	≤0.030	≤0.0034	Rest

(d) Aluminum (Al5754H111)

Element	Si	Fe	Cu	Mn	Mg	Cr	Zn	Ti	Al
Weight (%)	<0.40	<0.40	<0.10	<0.50	2.6–3.6	<0.30	<0.20	<0.15	Rest