ASTM B745/B745M-15(2021)
(Specification)Standard Specification for Corrugated Aluminum Pipe for Sewers and Drains
Standard Specification for Corrugated Aluminum Pipe for Sewers and Drains
ABSTRACT
This specification covers corrugated aluminum pipe intended for use for storm water drainage, underdrains, the construction of culverts, and similar uses. Pipe covered by this specification is not normally used for the conveyance of sanitary or industrial wastes. All pipe fabricated under this specification shall be formed from aluminum-alloy sheet conforming to the requirements specified. The sheet used in fabricating coupling bands shall conform to the requirements specified. The material used for rivets in riveted pipe shall conform to the requirements specified. Bolts and nuts for coupling bands shall conform to the required specification. If gaskets are used in couplings, they shall be a band of expanded rubber meeting the specified requirements. The fabrication requirements for type I, type II, type IA, and type IR pipe are presented. The corrugations shall be either annular or helical as provided. The different pipe requirements like pipe dimensions, sheet thickness, pipe-arch dimensions, longitudinal seams, and perforations are presented in details. Field joints for each type of corrugated aluminum pipe shall maintain pipe alignment during construction and prevent infiltration of fill material during the life of the installation.
SCOPE
1.1 This specification covers corrugated aluminum pipe intended for use for storm water drainage, underdrains, the construction of culverts, and similar uses. Pipe covered by this specification is not normally used for the conveyance of sanitary or industrial wastes.
1.2 This specification does not include requirements for bedding, backfill, or the relationship between earth-cover load and sheet thickness of the pipe. Experience has shown that the successful performance of this product depends upon the proper selection of sheet thickness, type of bedding and backfill, controlled manufacture in the plant, and care in the installation. The purchaser must correlate the above factors and also the corrosion and abrasion requirements of the field installation with the sheet thickness. The structural design of corrugated aluminum pipe and the proper installation procedures are given in Practices B790/B790M and B788/B788M, respectively. A procedure for using life-cycle cost analysis techniques to evaluate alternative drainage system designs 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 each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two 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 responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
General Information
Relations
Standards Content (Sample)
This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the
Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
Designation:B745/B745M −15 (Reapproved 2021)
Standard Specification for
Corrugated Aluminum Pipe for Sewers and Drains
This standard is issued under the fixed designation B745/B745M; the number immediately following the designation indicates the year
of 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. Scope 2. Referenced Documents
1.1 This specification covers corrugated aluminum pipe 2.1 ASTM Standards:
intended for use for storm water drainage, underdrains, the A153/A153M Specification for Zinc Coating (Hot-Dip) on
construction of culverts, and similar uses. Pipe covered by this Iron and Steel Hardware
specification is not normally used for the conveyance of A307 Specification for Carbon Steel Bolts, Studs, and
sanitary or industrial wastes. Threaded Rod 60 000 PSI Tensile Strength
A563 SpecificationforCarbonandAlloySteelNuts(Metric)
1.2 This specification does not include requirements for
A0563_A0563M
bedding, backfill, or the relationship between earth-cover load
A563M Specification for Carbon andAlloy Steel Nuts (Met-
and sheet thickness of the pipe. Experience has shown that the
ric) (Withdrawn 2021)
successful performance of this product depends upon the
A796/A796M Practice for Structural Design of Corrugated
proper selection of sheet thickness, type of bedding and
Steel Pipe, Pipe-Arches, and Arches for Storm and Sani-
backfill, controlled manufacture in the plant, and care in the
tary Sewers and Other Buried Applications
installation.Thepurchasermustcorrelatetheabovefactorsand
A930 Practice for Life-Cycle Cost Analysis of Corrugated
also the corrosion and abrasion requirements of the field
Metal Pipe Used for Culverts, Storm Sewers, and Other
installation with the sheet thickness. The structural design of
Buried Conduits
corrugated aluminum pipe and the proper installation proce-
B209 Specification for Aluminum and Aluminum-Alloy
dures are given in Practices B790/B790M and B788/B788M,
Sheet and Plate (Metric) B0209_B0209M
respectively. A procedure for using life-cycle cost analysis
B209M Specification for Aluminum and Aluminum-Alloy
techniques to evaluate alternative drainage system designs
Sheet and Plate (Metric) (Withdrawn 2021)
using corrugated metal pipe is given in Practice A930.
B221 Specification forAluminum andAluminum-Alloy Ex-
1.3 The values stated in either SI units or inch-pound units
truded Bars, Rods, Wire, Profiles, and Tubes
are to be regarded separately as standard. The values stated in
B221M Specification for Aluminum and Aluminum-Alloy
each system may not be exact equivalents; therefore, each
Extruded Bars, Rods, Wire, Profiles, and Tubes (Metric)
system shall be used independently of the other. Combining
B316/B316M Specification for Aluminum and Aluminum-
values from the two systems may result in non-conformance
Alloy Rivet and Cold-Heading Wire and Rods
with the standard.
B633 Specification for Electrodeposited Coatings of Zinc on
1.4 This standard does not purport to address all of the
Iron and Steel
safety concerns, if any, associated with its use. It is the B666/B666M Practice for Identification Marking of Alumi-
responsibility of the user of this standard to establish appro-
num and Magnesium Products
priate safety, health, and environmental practices and deter- B695 Specification for Coatings of Zinc Mechanically De-
mine the applicability of regulatory limitations prior to use.
posited on Iron and Steel
1.5 This international standard was developed in accor- B744/B744M Specification for Aluminum Alloy Sheet for
dance with internationally recognized principles on standard-
Corrugated Aluminum Pipe
ization established in the Decision on Principles for the B788/B788M Practice for Installing Factory-Made Corru-
Development of International Standards, Guides and Recom-
gated Aluminum Culverts and Storm Sewer Pipe
mendations issued by the World Trade Organization Technical B790/B790M Practice for Structural Design of Corrugated
Barriers to Trade (TBT) Committee.
1 2
This specification is under the jurisdiction of ASTM Committee B07 on Light For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Metals and Alloys and is the direct responsibility of Subcommittee B07.08 on contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Corrugated Aluminum Pipe and Corrugated Aluminum Structural Plate. Standards volume information, refer to the standard’s Document Summary page on
Current edition approved Dec. 1, 2021. Published December 2021. Originally the ASTM website.
approved in 1985. Last previous edition approved in 2015 as B745/B745M – 15. The last approved version of this historical standard is referenced on
DOI: 10.1520/B0745_B0745M-15R21. www.astm.org.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
B745/B745M−15 (2021)
Aluminum Pipe, Pipe-Arches, and Arches for Culverts, 4.1.6 Type IIR—This pipe shall be aType IR pipe which has
Storm Sewers, and Other Buried Conduits been reformed into a pipe-arch, having an approximately flat
C443 Specification for Joints for Concrete Pipe and bottom.
Manholes, Using Rubber Gaskets
4.1.7 Type III—This pipe, intended for use as underdrains or
D1056 Specification for Flexible Cellular Materials—
for underground disposal of water, shall be aType I pipe which
Sponge or Expanded Rubber
has been perforated to permit the in-flow or out-flow of water.
F467 Specification for Nonferrous Nuts for General Use
4.1.8 Type IIIR—This pipe, intended for the underground
F467M Specification for Nonferrous Nuts for General Use
disposal of water or for subsurface drainage, shall be aType IR
(Metric)
pipe which has been perforated to permit the outflow or inflow
F468 Specification for Nonferrous Bolts, Hex Cap Screws,
of water.
Socket Head Cap Screws, and Studs for General Use
4.2 Perforations in Type III pipe are classified as Class 1 or
F468M SpecificationforNonferrousBolts,HexCapScrews,
Class 2 and perforations in Type IIIR pipe are classified as
and Studs for General Use (Metric)
Class 4, as described in 8.3.2.
F568M Specification for Carbon and Alloy Steel Externally
Threaded Metric Fasteners (Metric) (Withdrawn 2012)
5. Ordering Information
F593 Specification for Stainless Steel Bolts, Hex Cap
Screws, and Studs
5.1 Orders for material to this specification shall include the
F594 Specification for Stainless Steel Nuts
following information as necessary, to adequately describe the
F738M Specification for Stainless Steel Metric Bolts,
desired product:
Screws, and Studs (Withdrawn 2014)
5.1.1 Name of material (corrugated aluminum pipe),
F836M Specification for Style 1 Stainless Steel Metric Nuts
5.1.2 ASTM designation and year of issue, as B745-_ for
(Metric)
inch-pound units or B745M-_ for SI units,
2.2 AASHTO Standard:
5.1.3 Type of pipe (4.1),
T 249 Test for Helical Lock Seam Corrugated Pipe
5.1.4 Method of fabrication for Type I and Type II pipe
2.3 AISI Standard:
(7.1),
AISI S100 North American Specification for the Design of
5.1.5 Diameter of circular pipe (8.1.1), or span and rise of
Cold-Formed Steel Structural Members
pipe-arch section (8.2.1),
5.1.6 Length, either total length or length of each piece and
3. Terminology
number of pieces,
3.1 Definitions of Terms Specific to This Standard:
5.1.7 Description of corrugations (7.2),
3.1.1 fabricator, n—the producer of the pipe.
5.1.8 Sheet thickness (8.1.2),
3.1.2 manufacturer, n—the producer of the sheet. 5.1.9 Coupling bands, number, and type (9.1) if special type
is required,
3.1.3 purchaser, n—the purchaser of the finished product.
5.1.10 Gaskets for coupling bands, if required (9.3),
4. Classification
5.1.11 For perforated pipe, the class of perforations. If no
class is specified for Type III pipe, Class 1 perforations will be
4.1 The corrugated aluminum pipe covered by this specifi-
furnished.TypeIIIRpipeisfurnishedwithClass4perforations
cation is classified as follows:
only (8.3.2.1 and 8.3.2.3),
4.1.1 Type I—This pipe shall have a full circular cross-
5.1.12 Certification, if required (13.1), and
section, with a single thickness of corrugated sheet, fabricated
5.1.13 Special requirements.
with annular (circumferential) or helical corrugations.
4.1.2 Type IA—This pipe shall have a full circular cross-
section, with an outer shell of corrugated sheet and an inner 6. Materials
liner of smooth (uncorrugated) sheet, fabricated with helical
6.1 Aluminum Sheet for Pipe—Allpipefabricatedunderthis
corrugations and lock seams.
specification shall be formed from aluminum-alloy sheet con-
4.1.3 Type IR—This pipe shall have a full circular cross-
forming to Specification B744/B744M.
section, with a single thickness of smooth sheet, fabricated
6.2 Aluminum Sheet for Coupling Bands—The sheet used in
with helical ribs projecting outwardly.
fabricating coupling bands shall conform to Specification
4.1.4 Type II—This pipe shall be a Type I pipe which has
B744/B744M.
been reformed into a pipe-arch, having an approximately flat
bottom.
6.3 Rivets—The material used for rivets in riveted pipe shall
4.1.5 Type IIA—This pipe shall be aType IApipe which has
conform to the requirements of Specification B316/B316M for
been reformed into a pipe-arch, having an approximately flat
alloy 6053-T61 and alloy 5056 H32, to meet or exceed the
bottom.
following mechanical properties:
Tensile Strength, min, ksi [MPa] 25 [170]
Yield Strength, min, ksi [MPa] 14 [95]
Shear Strength, min, ksi [MPa] 15 [105]
Available from American Association of State Highway and Transportation
Elongation in 2 in., 50 mm, or 4x dia., min, % 14 [95]
Officials (AASHTO), 444 N. Capitol St., NW, Suite 249, Washington, DC 20001.
B745/B745M−15 (2021)
If bolts and nuts are substituted for rivets (see 7.3.1), they 7.2 Corrugations—The corrugations shall be either annular
shall meet the following requirements for either steel bolts and or helical as provided in 7.1. The direction of the crests and
nuts, stainless steel bolts and nuts, or aluminum alloy bolts and valleys of helical corrugations shall not be less than 60° from
nuts: the axis of the pipe for pipe diameters larger than 21 in.
[525 mm], and not less than 45° from the axis for pipe
Bolts Nuts
diameters of 21 in. [525 mm] and smaller.
For B745 pipe
7.2.1 For Type I and IA pipe, corrugations shall form
(Steel) A307 A563,Gr.A
smooth continuous curves and tangents. The dimensions of the
(Stainless Steel) F593, Alloy Grp 1, 2, or 3 F594, Alloy Grp 1, 2, or 3
(Aluminum Alloy) F468, Alloy 6061-T6 F467, Alloy 6061-T6
corrugations shall be in accordance with Table 1 for the size
For B745M pipe
indicated in the order.
(Steel) F568M, Cl. 4.6 A563M, Cl. 5
7.2.2 For Type IR pipe, the corrugations shall be essentially
(Stainless Steel) F738M, Alloy Grp A1, A2, F836M, Alloy Grp A1, A2,
or A4 or A4
rectangular ribs projecting outward from the pipe wall. The
(Aluminum Alloy) F468M, Alloy 6061-T6 F467M, Alloy 6061-T6
dimensionsandspacingsoftheribsshallbeinaccordancewith
The steel bolts and nuts shall be hot-dip galvanized in
Table 2 for the size indicated in the order. See also Fig. 1. For
conformance with Specification A153/A153M, or be mechani-
the 11 ⁄2 in. [292 mm] rib spacing, a stiffener shall be included
callygalvanizedinconformancewithSpecificationB695Class
midway between the ribs, if the sheet between the ribs does not
40.
include a lock seam. This stiffener shall have a nominal radius
of 0.25 in. [6.4 mm] and a minimum height of 0.20 in.
6.4 Hardware for Coupling Bands—Bolts and nuts for
[5.1 mm] toward the outside of the pipe.
coupling bands shall conform to the requirements shown in 6.3
except for the coating on steel bolts and nuts. Steel bolts, nuts, NOTE 1—The nominal dimensions and properties for smooth corruga-
tions and for ribs are given in Practice B790/B790M.
and other threaded steel items used with coupling bands shall
NOTE 2—When requested by the purchaser, the pipe manufacturer shall
be zinc coated by one the following processes: hot-dip process
provide independent verification that the nominal dimensions of the
as provided in Specification A153/A153M, electroplating pro-
profile supplied meets or exceeds the sectional properties published in
cess as provided in Specification B633 Class FE/ZN 8, or
Practice A796/A796M. Such effective sectional properties shall be deter-
mechanical process as provided in Specification B695 Class 8. mined in accordance with AISI S100, North American Specification for
the Design of Cold-Formed Steel Structural Members.
Other steel hardware items used with coupling bands shall be
zinc-coated by one of the following processes: hot-dip process
7.3 Riveted Seams—The longitudinal seams shall be stag-
as provided in Specification A153/A153M; electroplating pro-
gered to the extent that no more than three thicknesses of sheet
cess as provided in Specification B633 Class FE/ZN 25; or
are fastened by any rivet. Pipe to be reformed into pipe-arch
mechanical process as provided in Specification B695 Class
shape shall also meet the longitudinal seam requirement of
25. Aluminum angles and lugs shall conform to the require-
8.2.2.
ments of Specification B221 or B221M for alloy 6063-T6.
NOTE 3—Fabrication of pipe without longitudinal seams in 120° of arc,
so that the pipe may be installed without longitudinal seams in the invert,
6.5 Gaskets—If gaskets are used in couplings, they shall be
is subject to negotiation between the purchaser and fabricator.
a band of expanded rubber meeting the requirements of
Specification D1056 for the “RE” closed cell grades, or
TABLE 1 Corrugation Requirements for Type I, IA, II, IIA, and III
O-rings meeting the requirements of Specification C443.
Pipe
C
Inside Radius
Maximum Minimum
7. Fabrication
Nominal Size
A B
Pitch Depth
Nominal Minimum
7.1 General Requirements—Pipe shall be fabricated in full
B745 (in.)
circular cross-section.
D
1 1 7 9
1 ⁄2 by ⁄4 1 ⁄8 0.24 ⁄32 0.25
7.1.1 Type I pipe shall have annular corrugations with lap
E
2 1 7 11
2 ⁄2 by ⁄2 2 ⁄8 0.48 ⁄16 0.5
1 9
joints fastened with rivets or shall have helical corrugations
3by1 3 ⁄4 0.95 ⁄16 0.5
6by1 6 ⁄4 0.95 2.2 2.0
with a continuous lock seam extending from end to end of each
length of pipe. As there are important differences in the
B745M (mm)
structural characteristics of annular, riveted pipe versus helical
D
38 by 6.5 48 6.0 7 6.5
pipe, it is important for the purchaser to stipulate, for Type I
E
68 by 13 73 12 17 12
and
...
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