ASTM B903-10

Standard Specification for Seamless Copper Heat Exchanger Tubes With Internal Enhancement

ABSTRACT
This specification covers seamless, internally enhanced copper tube, in straight lengths or coils, suitable for use in refrigeration and air-conditioning products or other heat exchangers. The material of manufacture shall be cast billet, bar, tube, or so forth of copper UNS No. C12200 and shall be of such purity and soundness as to be suitable for processing into the tubular product described. The tube shall be manufactured by such hot- and cold-working processes needed to produce a homogenous, uniform wrought structure in the finished product. The material shall conform to the chemical composition requirements specified. The grain size shall be determined in the wall beneath the ridges. The microstructure shall show complete recrystallization and shall have an average grain size within the limits specified. As-fabricated and O (annealed) temper tube shall conform to the mechanical properties specified. The specimens of annealed product shall withstand the specified expansion tested as specified. Each tube shall be subjected to an eddy-current test. Tubes shall be tested normally in the fabricated temper; however, they may be tested in the annealed temper at the option of the manufacturer.
SCOPE
1.1 This specification establishes the requirements for seamless, 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 Tubes for this application are manufactured from the following copper:
Copper UNS No.Type of Metal  C12200Phosphorized, high residual phosphorus (DHP)
1.4 The following pertains to the test method described in 15.4 of this specification:  This standard does not purport to address all 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 limitations prior to use.

General Information

• Status: Historical
• Publication Date: 31-Mar-2010
• ICS: 23.040.15 - Non-ferrous metal pipes
• Technical Committee: B05 - Copper and Copper Alloys
• Drafting Committee: B05.04 - Pipe and Tube

Relations

• Replaces: ASTM B903-00(2005) - Standard Specification for Seamless Copper Heat Exchanger Tubes With Internal Enhancement
• Effective Date: 01-Apr-2010

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:B903 −10
StandardSpecification for
Seamless Copper Heat Exchanger Tubes With Internal
1
Enhancement
This standard is issued under the fixed designation B903; 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* E3 Guide for Preparation of Metallographic Specimens
E8 Test Methods for Tension Testing of Metallic Materials
1.1 This specification establishes the requirements for
E29 Practice for Using Significant Digits in Test Data to
seamless, internally enhanced copper tube, in straight lengths
Determine Conformance with Specifications
or coils, suitable for use in refrigeration and air-conditioning
E53 Test Method for Determination of Copper in Unalloyed
products or other heat exchangers.
Copper by Gravimetry
1.2 Units—The values stated in inch-pound units are to be
E62 Test Methods for Chemical Analysis of Copper and
3
regarded as standard. The values given in parentheses are
CopperAlloys (Photometric Methods) (Withdrawn 2010)
mathematical conversions to SI units that are provided for
E112 Test Methods for Determining Average Grain Size
information only and are not considered standard.
E243 PracticeforElectromagnetic(Eddy-Current)Examina-
1.3 Tubes for this application are manufactured from the tion of Copper and Copper-Alloy Tubes
E255 Practice for Sampling Copper and Copper Alloys for
following copper:
the Determination of Chemical Composition
Copper UNS No. Type of Metal
C12200 Phosphorized, high residual phosphorus (DHP)
3. General Requirements
1.4 The following pertains to the test method described in
3.1 The following sections of Specification B251 constitute
15.4 of this specification: This standard does not purport to
a part of this specification:
address all the safety concerns, if any, associated with its use.
3.1.1 Workmanship, Finish, and Appearance.
It is the responsibility of the user of this standard to establish
3.1.2 Sampling.
appropriate safety and health practices and determine the
3.1.3 Number of Tests and Retests.
applicability of regulatory limitations prior to use.
3.1.4 Specimen Preparation.
3.2 In addition, when a section with a title identical to those
2. Referenced Documents
referenced in 3.1 appears in this specification, it contains
2
2.1 ASTM Standards:
additional information which supplements those appearing in
B153 Test Method for Expansion (Pin Test) of Copper and
Specification B251. In case of conflict, this specification shall
Copper-Alloy Pipe and Tubing
prevail.
B251 Specification for General Requirements for Wrought
Seamless Copper and Copper-Alloy Tube
4. Terminology
B601 Classification forTemper Designations for Copper and
4.1 Definitions of Terms Specific to This Standard:
Copper Alloys—Wrought and Cast
4.1.1 For definitions of terms related to copper and copper
B846 Terminology for Copper and Copper Alloys
alloys, refer to Terminology B846.
B950 Guide for Editorial Procedures and Form of Product
4.1.2 bottom wall, n—the wall thickness measured from the
Specifications for Copper and Copper Alloys
base of the enhancement to the outside surface.
4.1.3 enhancement, adj—a geometrical feature intentionally
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
formed on a tube I.D. surface to improve heat transfer.
and CopperAlloys and is the direct responsibility of Subcommittee B05.04 on Pipe
4.1.4 level wound, adj—a coil in which the turns are wound
and Tube.
Current edition approved April 1, 2010. Published May 2010. Originally
into layers parallel to the axis of the coil such that successive
approved in 2000. Last previous edition approved in 2005 as B903–00 (2005). DOI:
turns in a given layer are next to one another.
10.1520/B0903-10.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. 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

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B903−10
TABLE 2
5. Ordering Information
Temper Designation Average Grain Size, mm
5.1 Include the following information when placing orders
As fabricated —
for products under this specification, as applicable:
O60 0.040 min
5.1.1 ASTM Designation number and the year of issue.
O50 0.040 max
5.1.2 Temper.
5.1.3 Length, diameter, wall, and enhancement di
...

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:B903–00 (Reapproved 2005) Designation: B903 – 10
Standard Specification for
Seamless Copper Heat Exchanger Tubes With Internal
1
Enhancement
This standard is issued under the fixed designation B903; 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 seamless, internally enhanced copper tube, in straight lengths or coils,
suitable for use in refrigeration and air-conditioning products or other heat exchangers.
1.2The values stated in inch-pound units are the standard. SI values are given in parentheses for information only.
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 Tubes for this application are manufactured from the following copper:
Copper UNS No. Type of Metal
C12200 Phosphorized, high residual phosphorus (DHP)
1.4 The following pertains to the test method described in 15.4 of this specification: This standard does not purport to address
all 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 limitations 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
B251 Specification for General Requirements for Wrought Seamless Copper and Copper-Alloy Tube
B601 Classification for Temper Designations for Copper and Copper AlloysWrought and Cast
B846 Terminology for Copper and Copper Alloys
B950 Guide for Editorial Procedures and Form of Product Specifications for Copper and Copper Alloys
E3 Guide for Preparation of Metallographic Specimens
E8 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 Copper Alloys for the Determination of Chemical Composition
3. General Requirements
3.1The following sections of Specification
3.1 The following sections of Specification B251 constitute a part of this specification:
3.1.1 Workmanship, Finish, and Appearance.
3.1.2 Sampling.
3.1.3 Number of Tests and Retests.
3.1.4 Specimen Preparation.
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 Mar. 1, 2005. Published March 2005. Originally approved in 2000. Last previous edition approved in 2000 as B903–00. DOI:
10.1520/B0903-00R05.
Current edition approved April 1, 2010. Published May 2010. Originally approved in 2000. Last previous edition approved in 2005 as B903–00 (2005). DOI:
10.1520/B0903-10.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at [e-mail]. 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 ----------------------
B903 – 10
3.2 In addition, when a section with a title identical to those referenced in 5.13.1 appears in this specification, it contains
additionalinformationwhichsupplementsthoseappearinginSpecificationB251.Incaseofconflict,thisspecificationshallprevail.
4. Terminology
4.1Definitions—For the definition of terms related to copper and copper alloys refer to Terminology
4.1 Definitions of Terms Specific to This Standard: (For definitions of terms related to copper and copper alloys, refer to
Terminology B846. ).
4.1.1 bottom wall, n—the wall thickness measured from the base of the enhancement to the outside surfa
...