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>•*v <br />♦r*‘ “ * t’* v“»■ - ' <br /><* * ' . ^ . . • - <br />JT* . <br />» . * -l <br />' •» <br />oit ; .i i, .|^,' ■' ij^-i, jj f.,v^ <br />piftenti '* <br />nanc>6 <br />•\ . <br />•- i, A <br />Ln -Ay. <br />i-.fdp'-' <br />i v-.ry •• •*', ••> <br />**rV •’•*-. - 'A <br />:a <br />M} . .V ^ ■V- >, <br />■'.*><= <br />' *'•*. / ‘ ‘i,’ ‘ «<-*■*• ^ *4^% <br />I for '/•,. <br />.. .-•; v./;^.;V/;,,;,:f--^ <br />N- %• <br />#.«• <br />I ■ ' •■>•• . ■ . 7 <br />‘bslop ' <br />'O ... <br />i :■ < -»♦ <br />oii <br />••• <br />: ^<1 V*.| <br />' .'*■ ■'*•**.* ’* ___ <br />••- r’'* ■ .7*f i- -: * w « <br />L.^ * <br />S5" <br />/ '’ '' m>6Jrm' C-'t77---------H v.i . .1 - ^ - <br />.• •* <br />» *:-yy;:: <br />■i5;:> • • <br />•j♦ •• • f• *. -• <br />>-V <br />• • <br />Im*• ^ <br />iV <br />■v-l <br />i ," 2 <br />. .? <br />• • •' <br />.• / . ' ., * „ +vao film reinainrs <br />' Aiuminura will not‘ corrode as Fortunately,‘ continuous and in'tact or can r.e. or., if oar.a^ ^ <br />the oxide mm is robust and ''however, some condi-siosrisrssi .r <br />'• # • * <br />K <br />Alloys <br />•i <br />* •» .• <br />Mi«, 5052 i-rti»O..0 .«a ;of «VwS.rs^Ss%nK;"“ <br />?UUnS‘t; U.S™,iSTj"fe» in .S.n5.0 «»m« <br />iimmersion is provided in Table I. <br />* • <br />• * • <br />i . . «* <br />TABLE I.: <br />•• <br />.V‘ ' <br />L‘ ^ <br />♦ ^ ■ <br />. ♦ t <br />;»0SM>sio«.0| oj SSS™ <br />DAYTONA BEACH, FLORIDA • <br />k . * _ * * <br />•{ <br />-r ‘•1 <br />■ ^• <br />** •* <br />a •«i t«• s <br />i' «. ' * <br />■ * ■ •Alloy & <br />Temper <br />• • <br />» . •.* . .a Exposure <br />Period, Yrs. <br />Maximum <br />Measured <br />Pit Depths, mils <br />Per Cent <br />Chanfie In TS <br />^ * <br />5030-H3i» <br />5052-h3^ <br />. • ^ <br />6 o6 i-t4 <br />8 <br />8 <br />6 <br />6 <br />8 <br />’* <br />12.0 <br />10.5 <br />23.0 <br />34.0 <br />lU.O <br />-3 <br />-2 <br />-2 <br />0 <br />-9 <br />■» • <br />i’’.»s »s:. w“c5uS.‘i;?™ jS'?»“SiS jsh “;.‘S<. <br />strength are required. <br />• r <br />r*.. • ** * <br />t <br />■Effect of pH <br />• • 9 <br />• • <br />Aluminum maintains good s”stable within this <br />or to 9 because the „ithin this pH <br />range. (Mearly all natural env breaks in the <br />^?irklm Thf Ixtenl of pitting depends upon the type and <br />( <br />i <br />' +■' <br />1 <br />C <br />r <br />li"' ■ 1 <br />I'- -#‘’''■.1 <br />1 <br />f. <br />% <br />»r*’. •* <br />• >» •'• <br />c <br />( > <br />( <br />concent <br />onment. <br />If this <br />rate of <br />creas^js <br />alka?.in <br />Effect ( <br />Years o: <br />compatil <br />include: <br />wood pi! <br />The proi <br />electric <br />measurec <br />additlor <br />Certain <br />These ir <br />solved C <br />There ai <br />determir <br />Effect c <br />Soils va <br />in their <br />lated in <br />performa <br />all soil <br />within t <br />patible. <br />the rare <br />pH and r <br />Galvanic <br />This is <br />rosion e: <br />is bond:* <br />tJien exp <br />inuin o''c = <br />protect, <br />corro.'jio! <br />the rela ‘ <br />Corrosj 02 <br />electrics <br />by means <br />steel prc