ASTM B88-22
(Specification)Standard Specification for Seamless Copper Water Tube
Standard Specification for Seamless Copper Water Tube
ABSTRACT
This specification covers seamless copper alloy water tubes for general plumbing and similar applications in fluid conveyance. These water tubes made from UNS C10200, C12000, and C12200 copper alloys are commonly used with solder, flared, or compression-type fittings. The materials should be cold-drawn to size and the tubes finished by cold working and annealing to produce the required temper and surface finish. When tubes are furnished in coils, annealing is done after coiling, while those furnished in straight lengths should be in the drawn temper. The numerical values in this specification are not presented in inch-pound units, but rather, in metric or SI units only.
SIGNIFICANCE AND USE
17.1 For purposes of determining compliance with the specified limits for requirements of the properties listed in Table 7, an observed value or calculated value shall be rounded as indicated in accordance with the rounding method of Practice E29.
SCOPE
1.1 This specification establishes the requirements for seamless copper water tube suitable for general plumbing, similar applications for the conveyance of fluids, and commonly used with solder, flared, or compression-type fittings. The type of copper water tube suitable for any particular application is determined by the internal or external fluid pressure, by the installation and service conditions, and by local requirements. Means of joining or bending are also factors which affect the selection of the type of tube to be used.2
Note 1: Annealed tube is suitable for use with flared or compression fittings, and with solder-type fittings, provided rounding and sizing of the tube ends is performed where needed.
Note 2: Drawn temper tube is suitable for use with solder-type fittings. Types K and L tube, in the drawn temper, are suitable for use with certain types and sizes of compression fittings.
Note 3: Fittings used for soldered or brazed connections in plumbing systems are described in ASME B16.18 and ASME B16.22.
1.2 The tube shall be produced from the following coppers, and the manufacturer has the option to supply any one of them, unless otherwise specified.
Copper
UNS No.
Previously Used
Designation
Description
C12000
DLP
Phosphorus deoxidized,
low residual phosphorus
C12200
DHP
Phosphorus deoxidized,
high residual phosphorus
1.3 The assembly of copper plumbing or fire sprinkler systems by soldering is described in Practice B828.
1.4 Solders for joining copper potable water or fire sprinkler systems are covered by Specification B32. The requirements for acceptable fluxes for these systems are covered by Specification B813.
1.5 Units—The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in this standard.
1.5.1 This specification is the companion specification to SI Specification B88M; therefore, no SI equivalents are shown in this specification.
1.5.1.1 Exception—Values given in inch-pound units are the standard except for grain size, which is stated in SI units.
1.6 The following safety hazards caveat pertains only to the test methods portion, Section 16, of this specification: 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.
1.7 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
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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:B88 −22
Standard Specification for
1
Seamless Copper Water Tube
This standard is issued under the fixed designation B88; the number immediately following the designation indicates the year of original
adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.Asuperscript
epsilon (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope* 1.5 Units—The values stated in inch-pound units are to be
regarded as standard. No other units of measurement are
1.1 Thisspecificationestablishestherequirementsforseam-
included in this standard.
less copper water tube suitable for general plumbing, similar
1.5.1 This specification is the companion specification to SI
applications for the conveyance of fluids, and commonly used
Specification B88M; therefore, no SI equivalents are shown in
with solder, flared, or compression-type fittings. The type of
this specification.
copper water tube suitable for any particular application is
1.5.1.1 Exception—Values given in inch-pound units are the
determined by the internal or external fluid pressure, by the
standard except for grain size, which is stated in SI units.
installation and service conditions, and by local requirements.
1.6 The following safety hazards caveat pertains only to the
Means of joining or bending are also factors which affect the
2
test methods portion, Section 16, of this specification: This
selection of the type of tube to be used.
standard does not purport to address all of the safety concerns,
NOTE 1—Annealed tube is suitable for use with flared or compression
if any, associated with its use. It is the responsibility of the user
fittings, and with solder-type fittings, provided rounding and sizing of the
of this standard to establish appropriate safety, health, and
tube ends is performed where needed.
NOTE2—Drawntempertubeissuitableforusewithsolder-typefittings. environmental practices and determine the applicability of
Types K and Ltube, in the drawn temper, are suitable for use with certain
regulatory limitations prior to use.
types and sizes of compression fittings.
1.7 This international standard was developed in accor-
NOTE 3—Fittings used for soldered or brazed connections in plumbing
dance with internationally recognized principles on standard-
systems are described in ASME B16.18 and ASME B16.22.
ization established in the Decision on Principles for the
1.2 The tube shall be produced from the following coppers,
Development of International Standards, Guides and Recom-
and the manufacturer has the option to supply any one of them,
mendations issued by the World Trade Organization Technical
unless otherwise specified.
Barriers to Trade (TBT) Committee.
Copper Previously Used Description
UNS No. Designation
2. Referenced Documents
C12000 DLP Phosphorus deoxidized,
2.1 The following documents of the issue in effect on date
low residual phosphorus
of material purchase form a part of this specification to the
C12200 DHP Phosphorus deoxidized,
high residual phosphorus extent referenced herein:
3
1.3 The assembly of copper plumbing or fire sprinkler
2.2 ASTM Standards:
systems by soldering is described in Practice B828.
B32 Specification for Solder Metal
B88M Specification for Seamless Copper Water Tube (Met-
1.4 Soldersforjoiningcopperpotablewaterorfiresprinkler
ric)
systems are covered by Specification B32. The requirements
B153 Test Method for Expansion (Pin Test) of Copper and
for acceptable fluxes for these systems are covered by Speci-
Copper-Alloy Pipe and Tubing
fication B813.
B577 Test Methods for Detection of Cuprous Oxide (Hydro-
gen Embrittlement Susceptibility) in Copper
1
B813 Specification for Liquid and Paste Fluxes for Solder-
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
and CopperAlloys and is the direct responsibility of Subcommittee B05.04 on Pipe
ing of Copper and Copper Alloy Tube
and Tube.
B828 Practice for Making Capillary Joints by Soldering of
Current edition approved Oct. 1, 2022. Published October 2022. Originally
approved in 1932. Last previous edition approved in 2020 as B88-20. DOI:
10.1520/B0088-22.
2 3
The UNS system for copper and copper alloys (see Practice E527) is a simple For referenced ASTM standards, visit the ASTM website, www.astm.org, or
expansion of the former standard designation system accomplished by the addition contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
of a prefix “C” and a suffix “00.”The suffix is permitted to be used to accommodate Standards volume information, refer to the standard
...
This document is not 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. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: B88 − 20 B88 − 22
Standard Specification for
1
Seamless Copper Water Tube
This standard is issued under the fixed designation B88; 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.
This standard has been approved for use by agencies of the U.S. Department of Defense.
1. Scope*
1.1 This specification establishes the requirements for seamless copper water tube suitable for general plumbing, similar
applications for the conveyance of fluids, and commonly used with solder, flared, or compression-type fittings. The type of copper
water tube suitable for any particular application is determined by the internal or external fluid pressure, by the installation and
service conditions, and by local requirements. Means of joining or bending are also factors which affect the selection of the type
2
of tube to be used.
NOTE 1—Annealed tube is suitable for use with flared or compression fittings, and with solder-type fittings, provided rounding and sizing of the tube ends
is performed where needed.
NOTE 2—Drawn temper tube is suitable for use with solder-type fittings. Types K and L tube, in the drawn temper, are suitable for use with certain types
and sizes of compression fittings.
NOTE 3—Fittings used for soldered or brazed connections in plumbing systems are described in ASME B16.18 and ASME B16.22.
1.2 The tube shall be produced from the following coppers, and the manufacturer has the option to supply any one of them, unless
otherwise specified.
Copper Previously Used Description
UNS No. Designation
C12000 DLP Phosphorus deoxidized,
low residual phosphorus
C12200 DHP Phosphorus deoxidized,
high residual phosphorus
1.3 The assembly of copper plumbing or fire sprinkler systems by soldering is described in Practice B828.
1.4 Solders for joining copper potable water or fire sprinkler systems are covered by Specification B32. The requirements for
acceptable fluxes for these systems are covered by Specification B813.
1
This specification is under the jurisdiction of ASTM Committee B05 on Copper and Copper Alloys and is the direct responsibility of Subcommittee B05.04 on Pipe and
Tube.
Current edition approved April 1, 2020Oct. 1, 2022. Published May 2020October 2022. Originally approved in 1932. Last previous edition approved in 20162020 as
B88-16.-20. DOI: 10.1520/B0088-20.10.1520/B0088-22.
2
The UNS system for copper and copper alloys (see Practice E527) is a simple expansion of the former standard designation system accomplished by the addition of a
prefix “C” and a suffix “00.” The suffix is permitted to be used to accommodate composition variations of the base alloy.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
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B88 − 22
1.5 Units—The values stated in inch-pound units are to be regarded as standard. No other units of measurement are included in
this standard.
1.5.1 This specification is the companion specification to SI Specification B88M; therefore, no SI equivalents are shown in this
specification.
1.5.1.1 Exception—Values given in inch-pound units are the standard except for grain size, which is stated in SI units.
1.6 The following safety hazards caveat pertains only to the test methods portion, Section 16, of this specification: 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.
1.7 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.
2. Referenced Documents
2.1 The following documents of the issue in effect on date of material purchase form a part of this specification to the extent
referenced herein:
3
2.2 ASTM Standards:
B32 Specification for Solder Metal
B88M Specification for Seamless Copper Water Tube (Metric)
B153 Test Method for Expansion (Pin
...
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