b'Corrosion Life of ECP Steel Piers:The ECP Pier pipe for the particular job site.PPB-300-EPSandPPB-350-EPSpierpipeisfabricatedfrommillpre-galvanizedsteelsheet. The PPB-400-EPS is an option of the same pierThissteelsheetcarriesacorrosioncoatingto pipe with Hot Dip Galvanizing to ASTM A123 ASTM A653/A G90.This is coating is equivalent Grade75, whichis2.3oz/ft 2 ofzinc(3.9milsto 0.32 (minimum) to 0.45 oz/ft 2of zinc, or 0.76 minimumthickness). ThePPB-400-EPSBpiermils thickness per side. pipe is supplied with black, mill finish.This pierEstimating corrosion life for the most commonly pipe has NO corrosion protection.used ECP Steel Piers can be found using Table 6. ThecorrosionlivesforthePPB-400-EPSandBecausethePPB-300-EPS(2-7/8inchdiameter PPB-400-EPSBpierpipeisdeterminedfromwith 0.165 inch wall pier pipe) and the PPB-350- Table 6 in the same manner as discussed earlier.EPS (3-1/2 inch diameter with 0.165 pier pipe) are Locate the 4 inch diameter pier pipe in one of thefabricatedfromfactoryappliedG90galvanized right two columns at the top heading of Graph 6.sheet, the values in Table 6 include the corrosion ReaddownwarduntilreachingtheintersectionprotectionofferedbytheG90steelsheetinthe with the row that represents the closest value ofcorrosion life estimates. the soil pH found on the job site.At the top of Table 6 locate the PPB-300-EPS or AttheendofthecorrosionlifeestimatedbyPPB-350-EPS pier pipe configuration being used Quick-Solve Tables 5 and 6, there will be noin one of the first two columns.Next, determine loss of structural integrity.the soil pH that most closely matches the pH at thejobsite.Readdownwardfromthepierpipe ItisimportanttorememberthatcorrosionlifeConfigurationandhorizontallyfromthemost predictionsprovidean averagelifeexpectancyrelevantpHvalueuntilthecolumnandrow for the foundation support product when installedintersects.This is the Quick-Solve estimate of under the given conditions.thecorrosionlifeexpectancyoftheECPSteelTABLE 6. ECP STEEL PIER PIPE LIFE EXPECTANCY ESTIMATES AT FULL LOAD*PPB-300-EPS PPB-350-EPS PPB-400-EPSB PPB-400-EPS2-7/8 Dia. x 0.165 Tube 3-1/2 Dia. x 0.165 Tube 4 Dia. x 0.220 Tube 4 Dia. x 0.220 TubeSoil pH High Speed-coating High Speed-coating Mill FinishNo Corrosion HDG- (1.7 oz/ft 2 - 3.0 Mils(0.76 oz.ft 20.32 Mils) (0.76 oz.ft 20.32 Mils) Protection ASTM A123 Grade 75)Soil Resistivity 500 ohm-cm4.57 yrs7 yrs 7 yrs 16 yrs5 33 yrs 33 yrs 40 yrs 49 yrs813 yrs13 yrs 13 yrs 21 yrs10.5 7 yrs 7- yrs 7 yrs 16 yrsSoil Resistivity 1,000 ohm-cm4.5 8 yrs 8 yrs 8 yrs 19 yrs5 38 yrs 38 yrs 48 yrs 59 yrs8 13 yrs 13 yrs 14 yrs 25 yrs10.5 8 yrs 8 yrs 8 yrs 19 yrsSoil Resistivity 2,000 ohm-cm4.5 10 yrs 10 yrs 10 yrs 22 yrs5 57 yrs 57 yrs 72 yrs 68 yrs8 15 yrs 15 yrs 17 yrs 27 yrs10.5 10 yrs 10 yrs 10 yrs 22 yrsSoil Resistivity 5,000 ohm-cm4.5 15 yrs 15 yrs 13 yrs 35 yrs5 77 yrs 77 yrs 96 yrs 100+ yrs8 23 yrs 23 yrs 24 yrs 43 yrs10.5 15 yrs 15 yrs 13 yrs 25 yrs* SEE IMPORTANT NOTES BELOWECP Technical Design Manual -Corrosion Life2021 Earth Contact Products, L.L.C.2021-09 Chapter 8 - Page 156 All rights reserved'