Corrosion of Copper Alloys In Sea Water 







Expc 



sure 



Corrosion 

 Rate 



Corrosion 







Depth, 



Alloy 



CDA No? 1 * 



Days 



Feet 



MPY(2) 



TypeO) 



Source*' 4 ' 



Copper, Free 



102 



181 



5 



1.4 



C,P<5) 



NCEL 







181 



5 



1.8 



G 



INC0(8) 







197 



2 340 



0.8 



U 



NCEL 







197 



2340 



1.4 



U 



INCOW 







123 



5640 



1.6 



U 



NCEL 







123 



5640 



1.5 



u 



INC 0(8) 



Be-Cu 



172 



181 



5 



0.1 



u 



NCEL 



Be-Cu,MIG Weld 





181 



5 



0.1 



u 



NCEL 



Be-Cu, TIG Weld 





181 



5 



0.1 



ET 



NCEL 



Be-Cu, Chain 





181 



5 



0.1 



U 



NCEL 



Commercial Bronze 



220 



181 



5 



1.1 



u 



INC0( 8 ) 







197 



2340 



0.3 



u 



incoW 







123 



5640 



0.6 



u 



INCO(8) 



Red Brass 



230 



181 



5 



1.8 



SL DZ 



INC0<8) 







197 



2340 



1.0 



U 



INC0(8) 







123 



5640 



1.3 



U 



INC0( 8 ) 



As Admiralty 



443 



181 



5 



1.3 



U 



NCEL 







181 



5 



1.8 



G 



INC0(8) 







197 



2340 



0.6 



U 



NCEL 







197 



2340 



1.0 



U 



INCO(8) 







123 



5640 



1.0 



U 



NCEL 







123 



'5640 



1.1 



U 



INC0(8) 



Yellow Brass 



270 



181 



5 



2.1 



U 



INCO(8) 







197 



2340 



0.9 



U 



INCO(8) 







123 



5640 



1.4 



U 



INC0(8) 



Muntz Metal 



280 



181 



5 



2.4 



DZ 



NCEL 







181 



5 



3.4 



SL DZ 



INCO(8) 







197 



2340 



0.7 



SL DZ,p( 6 ' 



NCEL 







197 



2340 



0.7 



U 



INC0(8) 







123 



5640 



1.6 



SL DZ 



NCEL 







123 



5640 



2.1 



U 



INC0(8) 



Mn Bronze A 



675 



181 



5 



4.8 



S DZ 



INC0(8) 







197 



2340 



1.2 



S DZ 



INCO<8) 







123 



5640 



2.9 



S DZ 



INC0(8) 



Ni-Mn Bronze, Cast 





181 



5 



<0.1 



SL DZ 



NCEL 







197 



2340 



0.4 



SL DZ 



NCEL 







123 



5640 



0.5 



SL DZ 



NCEL 



Al Brass 





181 



5 



0.8 



G 



INCO(8) 







197 



2340 



0.5 



U 



INCO(8) 







123 



5640 



0.7 



U 



INCO(8) 



Ni Brass 





181 



5 



1.1 



U 



INCO(8) 







197 



2340 



0.8 



U 



INCO(8) 







123 



5640 



1.3 



U 



INC0(8) 



G Bronze 





181 



5 



1.3 



U 



INCO(8) 







197 



2340 



0.2 



U 



INCO(8) 







123 



5640 



0.5 



u 



INC0(8) 



Modified G Bronze 





181 



5 



1.3 



G 



INCO(8) 







197 



2340 



0.3 



U 



INCO<8) 







123 



5640 



0.5 



u 



INC0<8) 



