1、Designation: B745/B745M 12B745/B745M 15Standard Specification forCorrugated Aluminum Pipe for Sewers and Drains1This standard is issued under the fixed designation B745/B745M; the number immediately following the designation indicates the yearof original adoption or, in the case of revision, the yea
2、r 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 corrugated aluminum pipe intended for use for storm water drainage, underdrains, the co
3、nstructionof culverts, and similar uses. Pipe covered by this specification is not normally used for the conveyance of sanitary or industrialwastes.1.2 This specification does not include requirements for bedding, backfill, or the relationship between earth-cover load and sheetthickness of the pipe.
4、 Experience has shown that the successful performance of this product depends upon the proper selection ofsheet thickness, type of bedding and backfill, controlled manufacture in the plant, and care in the installation. The purchaser mustcorrelate the above factors and also the corrosion and abrasio
5、n requirements of the field installation with the sheet thickness. Thestructural design of corrugated aluminum pipe and the proper installation procedures are given in Practices B790/B790M andB788/B788M, respectively. A procedure for using life-cycle cost analysis techniques to evaluate alternative
6、drainage systemdesigns using corrugated metal pipe is given in Practice A930.1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in eachsystem may not be exact equivalents; therefore, each system shall be used independently of the
7、 other. Combining values from thetwo systems may result in non-conformance with the standard.1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health prac
8、tices and determine the applicability of regulatorylimitations prior to use.2. Referenced Documents2.1 ASTM Standards:2A153/A153M Specification for Zinc Coating (Hot-Dip) on Iron and Steel HardwareA307 Specification for Carbon Steel Bolts, Studs, and Threaded Rod 60 000 PSI Tensile StrengthA563 Spec
9、ification for Carbon and Alloy Steel NutsA563M Specification for Carbon and Alloy Steel Nuts (Metric)A930 Practice for Life-Cycle Cost Analysis of Corrugated Metal Pipe Used for Culverts, Storm Sewers, and Other BuriedConduitsB209 Specification for Aluminum and Aluminum-Alloy Sheet and PlateB209M Sp
10、ecification for Aluminum and Aluminum-Alloy Sheet and Plate (Metric)B221 Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and TubesB221M Specification for Aluminum and Aluminum-Alloy Extruded Bars, Rods, Wire, Profiles, and Tubes (Metric)B316/B316M Specification for
11、 Aluminum and Aluminum-Alloy Rivet and Cold-Heading Wire and RodsB633 Specification for Electrodeposited Coatings of Zinc on Iron and SteelB666/B666M Practice for Identification Marking of Aluminum and Magnesium ProductsB695 Specification for Coatings of Zinc Mechanically Deposited on Iron and Steel
12、B744/B744M Specification for Aluminum Alloy Sheet for Corrugated Aluminum PipeB788/B788M Practice for Installing Factory-Made Corrugated Aluminum Culverts and Storm Sewer Pipe1 This specification is under the jurisdiction of ASTM Committee B07 on Light Metals and Alloys and is the direct responsibil
13、ity of Subcommittee B07.08 on CorrugatedAluminum Pipe and Corrugated Aluminum Structural Plate.Current edition approved Nov. 1, 2012May 1, 2015. Published December 2012May 2015. Originally approved in 1985. Last previous edition approved in 20052012 asB745/B745M 97 (2005).B745/B745M 12. DOI: 10.1520
14、/B0745_B0745M-12.10.1520/B0745_B0745M-15.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not
15、 an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate
16、. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1B79
17、0/B790M Practice for Structural Design of Corrugated Aluminum Pipe, Pipe-Arches, and Arches for Culverts, StormSewers, and Other Buried ConduitsC443 Specification for Joints for Concrete Pipe and Manholes, Using Rubber GasketsD1056 Specification for Flexible Cellular MaterialsSponge or Expanded Rubb
18、erF467 Specification for Nonferrous Nuts for General UseF467M Specification for Nonferrous Nuts for General Use (Metric)F468 Specification for Nonferrous Bolts, Hex Cap Screws, Socket Head Cap Screws, and Studs for General UseF468M Specification for Nonferrous Bolts, Hex Cap Screws, and Studs for Ge
19、neral Use (Metric)F568M Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners (Metric) (Withdrawn 2012)3F593 Specification for Stainless Steel Bolts, Hex Cap Screws, and StudsF594 Specification for Stainless Steel NutsF738M Specification for Stainless Steel Metric Bolts, Scre
20、ws, and Studs (Withdrawn 2014)3F836M Specification for Style 1 Stainless Steel Metric Nuts (Metric)2.2 AASHTO Standard:4T 249 Test for Helical Lock Seam Corrugated Pipe3. Terminology3.1 Definitions of Terms Specific to This Standard:3.1.1 fabricatorfabricator, nthe producer of the pipe.3.1.2 manufac
21、turermanufacturer, nthe producer of the sheet.3.1.3 purchaserpurchaser, nthe purchaser of the finished product.4. Classification4.1 The corrugated aluminum pipe covered by this specification is classified as follows:4.1.1 Type IThis pipe shall have a full circular cross-section, with a single thickn
22、ess of corrugated sheet, fabricated withannular (circumferential) or helical corrugations.4.1.2 Type IAThis pipe shall have a full circular cross-section, with an outer shell of corrugated sheet and an inner liner ofsmooth (uncorrugated) sheet, fabricated with helical corrugations and lock seams.4.1
23、.3 Type IRThis pipe shall have a full circular cross-section, with a single thickness of smooth sheet, fabricated with helicalribs projecting outwardly.4.1.4 Type IIThis pipe shall be a Type I pipe which has been reformed into a pipe-arch, having an approximately flat bottom.4.1.5 Type IIAThis pipe
24、shall be a Type IA pipe which has been reformed into a pipe-arch, having an approximately flatbottom.4.1.6 Type IIRThis pipe shall be a Type IR pipe which has been reformed into a pipe-arch, having an approximately flatbottom.4.1.7 Type IIIThis pipe, intended for use as underdrains or for undergroun
25、d disposal of water, shall be a Type I pipe whichhas been perforated to permit the in-flow or out-flow of water.4.1.8 Type IIIRThis pipe, intended for the underground disposal of water or for subsurface drainage, shall be a Type IR pipewhich has been perforated to permit the outflow or inflow of wat
26、er.4.2 Perforations in Type III pipe are classified as Class 1 or Class 2 and perforations in Type IIIR pipe are classified as Class4, as described in 8.3.2.5. Ordering Information5.1 Orders for material to this specification shall include the following information as necessary, to adequately descri
27、be thedesired product:5.1.1 Name of material (corrugated aluminum pipe),5.1.2 ASTM designation and year of issue, as B745-_ for inch-pound units or B745M-_ for SI units,5.1.3 Type of pipe (4.1),5.1.4 Method of fabrication for Type I and Type II pipe (7.1),5.1.5 Diameter of circular pipe (8.1.1), or
28、span and rise of pipe-arch section (8.2.1),5.1.6 Length, either total length or length of each piece and number of pieces,5.1.7 Description of corrugations (7.2),5.1.8 Sheet thickness (8.1.2),5.1.9 Coupling bands, number, and type (9.1) if special type is required,3 The last approved version of this
29、 historical standard is referenced on www.astm.org.4 Available from American Association of State Highway and Transportation Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001.B745/B745M 1525.1.10 Gaskets for coupling bands, if required (9.3),5.1.11 For perforated pipe, the
30、class of perforations. If no class is specified for Type III pipe, Class 1 perforations will befurnished. Type IIIR pipe is furnished with Class 4 perforations only (8.3.2.1 and 8.3.2.3),5.1.12 Certification, if required (13.1), and5.1.13 Special requirements.6. Materials6.1 Aluminum Sheet for PipeA
31、ll pipe fabricated under this specification shall be formed from aluminum-alloy sheetconforming to Specification B744/B744M.6.2 Aluminum Sheet for Coupling BandsThe sheet used in fabricating coupling bands shall conform to SpecificationB744/B744M.6.3 RivetsThe material used for rivets in riveted pip
32、e shall conform to the requirements of Specification B316/B316M foralloy 6053-T61 and alloy 5056 H32, to meet or exceed the following mechanical properties:Tensile Strength, min, ksi MPa 25 170Yield Strength, min, ksi MPa 14 95Shear Strength, min, ksi MPa 15 105Elongation in 2 in., 50 mm, or 4x dia.
33、, min, % 14 95If bolts and nuts are substituted for rivets (see 7.3.1), they shall meet the following requirements for either steel bolts and nuts,stainless steel bolts and nuts, or aluminum alloy bolts and nuts:Bolts NutsFor B745 pipe(Steel) A307 A563, Gr. A(Stainless Steel) F593, Alloy Grp 1, 2, o
34、r 3 F594, Alloy Grp 1, 2, or 3(Aluminum Alloy) F468, Alloy 6061-T6 F467, Alloy 6061-T6For B745M pipe(Steel)(Stainless Steel)F568M, Cl. 4.6F738M, Alloy Grp A1, A2,or A4A563M, Cl. 5F836M, Alloy Grp A1, A2,or A4(Aluminum Alloy) F468M, Alloy 6061-T6 F467M, Alloy 6061-T6The steel bolts and nuts shall be
35、hot-dip galvanized in conformance with Specification A153/A153M, or be mechanicallygalvanized in conformance with Specification B695 Class 40.6.4 Hardware for Coupling BandsBolts and nuts for coupling bands shall conform to the requirements shown in 6.3 exceptfor the coating on steel bolts and nuts.
36、 Steel bolts, nuts, and other threaded steel items used with coupling bands shall be zinc coatedby one the following processes: hot-dip process as provided in Specification A153/A153M, electroplating process as provided inSpecification B633 Class FE/ZN 8, or mechanical process as provided in Specifi
37、cation B695 Class 8. Other steel hardware itemsused with coupling bands shall be zinc-coated by one of the following processes: hot-dip process as provided in SpecificationA153/A153M; electroplating process as provided in Specification B633 Class FE/ZN 25; or mechanical process as provided inSpecifi
38、cation B695 Class 25. Aluminum angles and lugs shall conform to the requirements of Specification B221 or B221M foralloy 6063-T6.6.5 GasketsIf gaskets are used in couplings, they shall be a band of expanded rubber meeting the requirements ofSpecification D1056 for the “RE” closed cell grades, or O-r
39、ings meeting the requirements of Specification C443.7. Fabrication7.1 General RequirementsPipe shall be fabricated in full circular cross-section.7.1.1 Type I pipe shall have annular corrugations with lap joints fastened with rivets or shall have helical corrugations with acontinuous lock seam exten
40、ding from end to end of each length of pipe. As there are important differences in the structuralcharacteristics of annular, riveted pipe versus helical pipe, it is important for the purchaser to stipulate, for Type I and Type II pipe,the method of fabrication desired. If the method of fabrication i
41、s not stated in the ordering information, the fabrication method shallbe at the option of the fabricator.7.1.2 Type IApipe shall be fabricated with a smooth liner and helically corrugated shell integrally attached at helical lock seamsextending from end to end of each length of pipe. The shell shall
42、 have corrugations of nominal 223 (or 3 in. 68 or 75 mm 75 mmpitch.7.1.3 Type IR pipe shall be fabricated with helical ribs projecting outward with a continuous lock seam extending from end toend of each length of pipe.7.2 CorrugationsThe corrugations shall be either annular or helical as provided i
43、n 7.1. The direction of the crests and valleysof helical corrugations shall not be less than 60 from the axis of the pipe for pipe diameters larger than 21 in. 525 mm, 525 mm,and not less than 45 from the axis for pipe diameters of 21 in. 525 mm 525 mm and smaller.7.2.1 For Type I and IA pipe, corru
44、gations shall form smooth continuous curves and tangents. The dimensions of thecorrugations shall be in accordance with Table 1 for the size indicated in the order.B745/B745M 1537.2.2 For Type IR pipe, the corrugations shall be essentially rectangular ribs projecting outward from the pipe wall. Thed
45、imensions and spacings of the ribs shall be in accordance with Table 2 for the size indicated in the order. See also Fig. 1. Forthe 1112 in. 292 mm rib spacing, a stiffener shall be included midway between the ribs, if the sheet between the ribs does notinclude a lock seam. This stiffener shall have
46、 a nominal radius of 0.25 in. 6.4 mm and a minimum height of 0.20 in. 5.1 mm5.1 mm toward the outside of the pipe.NOTE 1The nominal dimensions and properties for smooth corrugations and for ribs are given in Practice B790/B790M.7.3 Riveted SeamsThe longitudinal seams shall be staggered to the extent
47、 that no more than three thicknesses of sheet arefastened by any rivet. Pipe to be reformed into pipe-arch shape shall also meet the longitudinal seam requirement of 8.2.2.NOTE 2Fabrication of pipe without longitudinal seams in 120 of arc, so that the pipe may be installed without longitudinal seams
48、 in the invert, issubject to negotiation between the purchaser and fabricator.7.3.1 The size of rivets, number per corrugation, and width of lap at the longitudinal seam shall be as stated in Table 3,depending on sheet thickness, corrugation size, and diameter of pipe. For pipe with 1 in. 25 mm deep
49、 corrugations, 12-in. MetricM12 diameter bolts and nuts may be used in lieu instead of rivets on a one-for-one replacement ratio. Circumferential seams shallTABLE 1 Corrugation Requirements for Type I, IA, II, IIA, and IIIPipeNominal Size MaximumPitchA MinimumDepthB Inside RadiusCNominal MinimumB745 (in.)112 by 14D 178 0.24 932 0.25222 by 12 278 0.48E 1116 0.53 by 1 314 0.95 916 0.56 by 1 614 0.95 2.2 2.0B745M (mm)38 by 6.5D 48 6.0 7 6.568 by 13 73 12E 17 1275 by 25 83 24 14 12150 by 25 160 24 56 51
