ASTM_A_762_-_A_762M_-_15.pdf

Designation:A762/A762M15Standard Specification forCorrugated Steel Pipe,Polymer Precoated for Sewers andDrains1This standard is issued under the fixed designation A762/A762M;the number immediately following the designation indicates the yearof original adoption or,in the case of revision,the year of last revision.A number in parentheses indicates the year of last reapproval.A superscript epsilon()indicates an editorial change since the last revision or reapproval.1.Scope1.1 This specification covers polymer precoated corrugatedsteel pipe intended for use for storm water drainage,underdrains,the construction of culverts,and similar uses.Pipecovered by this specification is not normally used for theconveyance of sanitary or industrial wastes.The steel sheetused in fabrication of the pipe has a polymer protective coatingover a metallic coating of zinc,55%aluminum-zinc alloy,orzinc-5%aluminum-mischmetal alloy.1.2 The polymer precoating provides extra protection of thebase metal against corrosion or abrasion,or both,in addition tothat provided by the metallic coating.Some severe environ-ments may cause corrosion problems to accessory items suchas rivets or coupling band hardware that does not have apolymer coating.Additional protection for polymer precoatedcorrugated steel pipe can be provided by use of coatingsapplied after fabrication of the pipe as described in Specifica-tion A849.1.3 This specification does not include requirements forbedding,backfill,or the relationship between earth cover loadand sheet thickness of the pipe.Experience has shown that thesuccessful performance of this product depends upon theproper selection of sheet thickness,type of bedding andbackfill,controlled manufacture in the plant,and care in theinstallation.The installation procedure is described in PracticeA798/A798M.1.4 This specification is applicable to orders in eitherinch-pound units as A762,or in SI units as A762M.Inch-pound units and SI units are not necessarily equivalent.SI unitsare shown in brackets in the text for clarity,but they are theapplicable values when the material is ordered to A762M.2.Referenced Documents2.1 ASTM Standards:2A90/A90M Test Method for Weight Mass of Coating onIron and Steel Articles with Zinc or Zinc-Alloy CoatingsA153/A153M Specification for Zinc Coating(Hot-Dip)onIron and Steel HardwareA307 Specification for Carbon Steel Bolts,Studs,andThreaded Rod 60 000 PSI Tensile StrengthA449 Specification for Hex Cap Screws,Bolts and Studs,Steel,Heat Treated,120/105/90 ksi Minimum TensileStrength,General UseA493 Specification for Stainless Steel Wire and Wire Rodsfor Cold Heading and Cold ForgingA563 Specification for Carbon and Alloy Steel NutsA563M Specification for Carbon andAlloy Steel Nuts(Met-ric)A742/A742M Specification for Steel Sheet,Metallic Coatedand Polymer Precoated for Corrugated Steel PipeA780 Practice for Repair of Damaged and Uncoated Areasof Hot-Dip Galvanized CoatingsA796/A796M Practice for Structural Design of CorrugatedSteel Pipe,Pipe-Arches,and Arches for Storm and Sani-tary Sewers and Other Buried ApplicationsA798/A798M Practice for Installing Factory-Made Corru-gated Steel Pipe for Sewers and Other ApplicationsA849 Specification for Post-Applied Coatings,Pavings,andLinings for Corrugated Steel Sewer and Drainage PipeA929/A929M Specification for Steel Sheet,Metallic-Coatedby the Hot-Dip Process for Corrugated Steel PipeB633 Specification for Electrodeposited Coatings of Zinc onIron and SteelB695 Specification for Coatings of Zinc Mechanically De-posited on Iron and Steel1This specification is under the jurisdiction of ASTM Committee A05 onMetallic-Coated Iron and Steel Products and is the direct responsibility ofSubcommittee A05.17 on Corrugated Steel Pipe Specifications.Current edition approved May 1,2015.Published May 2015.Originallyapproved in 1979.Last previous edition approved in 2008 as A762/A762M 08.DOI:10.1520/A0762_A0762M-15.2For referenced ASTM standards,visit the ASTM website,www.astm.org,orcontact ASTM Customer Service at serviceastm.org.For Annual Book of ASTMStandards volume information,refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 C443 Specification for Joints for Concrete Pipe andManholes,Using Rubber GasketsD1005 Test Method for Measurement of Dry-Film Thick-ness of Organic Coatings Using MicrometersD1056 Specification for Flexible Cellular MaterialsSponge or Expanded RubberF568M Specification for Carbon and Alloy Steel ExternallyThreaded Metric Fasteners(Metric)(Withdrawn 2012)32.2 AASHTO Standard:T 249 Test for Helical Lock Seam Corrugated Pipe42.3 AISI Standard:5AISI 100 North American Specification for the Design ofCold-Formed Steel Structural Members3.Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 fabricator,nthe producer of the pipe.3.1.2 manufacturer,nthe producer of the sheet.3.1.3 minimized coating structure,na