ASTM B919-12
(Specification)Standard Specification for Welded Copper Heat Exchanger Tubes With Internal Enhancement
Standard Specification for Welded Copper Heat Exchanger Tubes With Internal Enhancement
ABSTRACT
This specification establishes the requirements for welded, internally enhanced copper tube, in straight lengths or coils, suitable for use in refrigeration and air conditioning products or other heat exchangers. The following types of welded tubes are: as-welded and welded tube, subsequently annealed. The material of manufacture shall be sheet or strip, of the required alloy, and may be either cold worked or annealed. The welded tube shall be manufactured from either cold rolled or annealed sheet or strip. The sheet or strip shall be formed into a tubular shape on a suitable forming mill. The material shall conform to the chemical requirements specified. The microstructure shall show complete recrystallization and shall have an average grain size within the limits specified. Nondestructive examination, electromagnetic test, cleanness requirements, and cuprous oxide requirement shall be made to conform to the specified requirements.
SCOPE
1.1 This specification establishes the requirements for welded, internally enhanced copper tube, in straight lengths or coils, suitable for use in refrigeration and air conditioning products or other heat exchangers.
1.2 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.3 The product shall be produced of the following coppers. Unless otherwise specified, tubes made from any one of these coppers may be supplied:
Copper UNS No.Type of Metal C10200Oxygen-free without residual deoxidants C12200Phosphorized, high residual phosphorus (DHP)
1.4 The following pertains to the test method described in 18.4 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 and health practices and determine the applicability of regulatory requirements prior to use.
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Designation:B919 −12
Standard Specification for
Welded Copper Heat Exchanger Tubes With Internal
1
Enhancement
This standard is issued under the fixed designation B919; 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.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope* E3Guide for Preparation of Metallographic Specimens
E8/E8MTest Methods for Tension Testing of Metallic Ma-
1.1 This specification establishes the requirements for
terials
welded, internally enhanced copper tube, in straight lengths or
E29Practice for Using Significant Digits in Test Data to
coils, suitable for use in refrigeration and air conditioning
Determine Conformance with Specifications
products or other heat exchangers.
E53Test Method for Determination of Copper in Unalloyed
1.2 Units—The values stated in inch-pound units are to be
Copper by Gravimetry
regarded as standard. The values given in parentheses are
E62Test Methods for Chemical Analysis of Copper and
mathematical conversions to SI units that are provided for 3
CopperAlloys(PhotometricMethods)(Withdrawn2010)
information only and are not considered standard.
E112Test Methods for Determining Average Grain Size
1.3 Theproductshallbeproducedofthefollowingcoppers. E243PracticeforElectromagnetic(EddyCurrent)Examina-
tion of Copper and Copper-Alloy Tubes
Unless otherwise specified, tubes made from any one of these
coppers may be supplied: E255Practice for Sampling Copper and Copper Alloys for
the Determination of Chemical Composition
Copper UNS No. Type of Metal
E2575Test Method for Determination of Oxygen in Copper
C10200 Oxygen-free without residual deoxidants
and Copper Alloys
C12200 Phosphorized, high residual phosphorus (DHP)
1.4 The following pertains to the test method described in
3. Terminology
18.4 of this specification. This standard does not purport to
3.1 For the definition of terms related to copper and copper
address all of the safety concerns, if any, associated with its
alloys refer to Terminology B846.
use. It is the responsibility of the user of this standard to
establish appropriate safety and health practices and deter-
3.2 Definitions:
mine the applicability of regulatory requirements prior to use.
3.2.1 bottom wall, n—the wall thickness measured from the
base of the enhancement to the outside surface.
2. Referenced Documents
3.2.2 coil, n—a length of the product wound into a series of
2
2.1 ASTM Standards:
connected turns.
B153Test Method for Expansion (Pin Test) of Copper and
3.2.3 enhancement, n—a geometrical feature intentionally
Copper-Alloy Pipe and Tubing
formed on a tube I.D. surface to improve heat transfer.
B577TestMethodsforDetectionofCuprousOxide(Hydro-
3.2.4 level wound, adj—a type of coil in which the turns are
gen Embrittlement Susceptibility) in Copper
wound into layers parallel to the axis of the coil such that
B601ClassificationforTemperDesignationsforCopperand
successive turns in a given layer are next to one another.
Copper Alloys—Wrought and Cast
B846Terminology for Copper and Copper Alloys 3.3 Definitions of Terms Specific to This Standard:
3.3.1 roundness tolerance, n—the roundness tolerance is
defined as the maximum OD at a point minus the minimum
1
OD, at the same plane of intersection of the tube, divided by
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
and CopperAlloys and is the direct responsibility of Subcommittee B05.04 on Pipe
the specified OD × 100%.
and Tube.
3.3.2 squareness of cut, n—the maximum deviation of one
Current edition approved April 1, 2012. Published May 2012. Originally
approved in 2001. Last previous edition approved in 2006 as B919–01 (2006). side of a cross section from the opposite side, when measured
DOI: 10.1520/B0919-12.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on The last approved version of this historical standard is referenced on
the ASTM website. www.astm.org.
*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
---------------------- Page: 1 ----------------------
B919−12
against the projected perpendicularity of the plane of the 6.2.3 The internal enhancement shall be produced by cold
projected center of the tube at the ends. forming.
6.2.4 The longitudinal seam from welding shall be free of
4. Classification filler metal.
4.1 The following types of welded tube are manufactured
7. Chemical Composition
under the scope o
...
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:B919–01 (Reapproved 2006) Designation: B919 – 12
Standard Specification for
Welded Copper Heat Exchanger Tubes With Internal
1
Enhancement
This standard is issued under the fixed designation B919; 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*
1.1 This specification establishes the requirements for welded, internally enhanced copper tube, in straight lengths or coils,
suitable for use in refrigeration and air conditioning products or other heat exchangers.
1.2 Units—The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are
mathematical conversions to SI units, whichunits that are provided for information only and are not considered standard.
1.3 The product shall be produced of the following coppers. Unless otherwise specified, tubes made from any one of these
coppers may be supplied:
Copper UNS No. Type of Metal
C10200 Oxygen-free without residual deoxidants
C12200 Phosphorized, high residual phosphorus (DHP)
1.4 The following pertains to the test method described in 18.4 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 and health practices and determine the applicability of regulatory requirements prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
B153 Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing
B577 Test Methods for Detection of Cuprous Oxide (Hydrogen Embrittlement Susceptibility) in Copper
B601 Classification for Temper Designations for Copper and Copper AlloysWrought and Cast
B846 Terminology for Copper and Copper Alloys
E3 Guide for Preparation of Metallographic Specimens
E88/E8M Test Methods for Tension Testing of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E53 Test Method for Determination of Copper in Unalloyed Copper by Gravimetry
E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)
E112 Test Methods for Determining Average Grain Size
E243 Practice for Electromagnetic (Eddy-Current) Examination of Copper and Copper-Alloy Tubes
E255 Practice for Sampling Copper and CopperAlloys for the Determination of Chemical Composition Practice for Sampling
Copper and Copper Alloys for the Determination of Chemical Composition
E2575 Test Method for Determination of Oxygen in Copper and Copper Alloys
3. Terminology
3.1 For the definition of terms related to copper and copper alloys refer to Terminology B846.
3.2 Definitions:
3.2.1 bottom wall, n—the wall thickness measured from the base of the enhancement to the outside surface.
3.2.2 coil, n—a length of the product wound into a series of connected turns.
1
This specification is under the jurisdiction ofASTM Committee B05 on Copper and CopperAlloys and is the direct responsibility of Subcommittee B05.04 on Pipe and
Tube.
Current edition approved Oct. 1, 2006. Published November 2006. Originally approved in 2001. Last previous edition approved in 2001 as B919–01. DOI:
10.1520/B0919-01R06.
Current edition approved April 1, 2012. Published May 2012. Originally approved in 2001. Last previous edition approved in 2006 as B919 – 01 (2006). DOI:
10.1520/B0919-12.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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
---------------------- Page: 1 ----------------------
B919 – 12
3.2.3 enhancement, n—a geometrical feature intentionally formed on a tube I.D. surface to improve heat transfer.
3.2.4 levelwound,adj—atypeofcoilinwhichtheturnsarewoundintolayersparalleltotheaxisofthecoilsuchthatsuccessive
turns in a given layer are next to one another.
3.3 Definitions of Terms Specific to This Standard:
3.3.1 roundness tolerance, n—the roundness tolerance is defined as the maximum OD at a point minus the minimum OD, at
the same plane of intersection of
...
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