Standard Specification for Welded Copper and Copper-Alloy Condenser and Heat Exchanger Tubes with Integral Fins

SCOPE
1.1 This specification establishes the requirements for heat exchanger tubes manufactured from forge-welded copper and copper alloy tubing in straight lengths on which the external or internal surface, or both, has been modified by cold forming process to produce an integral enhanced surface for improved heat transfer.
1.2 UnitsThe values stated in either inch-pounds units or SI units are to be regarded separately as the standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems could result in nonconformance with the specification.
1.3 The tubes are typically used in surface condensers, evaporators, and heat exchangers.
1.4 The product shall be produced of the following coppers or copper alloys, as specified in the ordering information.Note 1
Designations listed in Classification B 224.
The following safety hazard caveat pertains only to the test methods described in 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 limitations prior to use.

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Status
Historical
Publication Date
30-Sep-2007
Technical Committee
Drafting Committee
Current Stage
Ref Project

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ASTM B956-07 - Standard Specification for Welded Copper and Copper-Alloy Condenser and Heat Exchanger Tubes with Integral Fins
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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: B 956 – 07
Standard Specification for
Welded Copper and Copper-Alloy Condenser and Heat
1
Exchanger Tubes with Integral Fins
This standard is issued under the fixed designation B 956; 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 (e) indicates an editorial change since the last revision or reapproval.
1. Scope standard to establish appropriate safety and health practices
and determine the applicability of regulatory limitations prior
1.1 This specification establishes the requirements for heat
to use.
exchanger tubes manufactured from forge-welded copper and
copper alloy tubing in straight lengths on which the external or
2. Referenced Documents
internal surface, or both, has been modified by cold forming
2
2.1 ASTM Standards:
process to produce an integral enhanced surface for improved
B 153 Test Method for Expansion (Pin Test) of Copper and
heat transfer.
Copper-Alloy Pipe and Tubing
1.2 Units—The values stated in either inch-pounds units or
B 154 Test Method for Mercurous Nitrate Test for Copper
SI units are to be regarded separately as the standard. Within
Alloys
the text, the SI units are shown in brackets. The values stated
B 224 Classification of Coppers
in each system are not exact equivalents; therefore, each
B 543 Specification for Welded Copper and Copper-Alloy
system shall be used independently of the other. Combining
Heat Exchanger Tube
values from the two systems could result in nonconformance
B 601 Classification for Temper Designations for Copper
with the specification.
and Copper Alloys—Wrought and Cast
1.3 The tubes are typically used in surface condensers,
B 846 Terminology for Copper and Copper Alloys
evaporators, and heat exchangers.
B 858 Test Method for Ammonia Vapor Test for Determin-
1.4 The product shall be produced of the following coppers
ing Susceptibility to Stress Corrosion Cracking in Copper
or copper alloys, as specified in the ordering information.
Alloys
Copper or Copper Alloy
Type of Metal
E8 Test Methods for Tension Testing of Metallic Materials
UNS No.
A
C12000 DLP Phosphorized, low residual phosphorus
E29 Practice for Using Significant Digits in Test Data to
A
C12200 DHP Phosphorized, high residual phosphorus
Determine Conformance with Specifications
C19200 Phosphorized, 1 % iron
E53 Test Method for Determination of Copper in Unal-
C23000 Red Brass
C44300 Admiralty, arsenical
loyed Copper by Gravimetry
C44400 Admiralty, antimonial
E54 Test Methods for Chemical Analysis of Special
C44500 Admiralty, phosphorized
3
Brasses and Bronzes
C68700 Aluminum Brass
C70400 95-5 Copper-Nickel
E62 Test Methods for Chemical Analysis of Copper and
C70600 90-10 Copper-Nickel
Copper Alloys (Photometric Methods)
C70620 90-10 Copper-Nickel (Modified for Welding)
E112 Test Methods for Determining Average Grain Size
C71000 80-20 Copper-Nickel
C71500 70-30 Copper-Nickel
E118 Test Methods for Chemical Analysis of Copper-
C71520 70-30 Copper-Nickel (Modified for Welding)
Chromium Alloys
C72200 Copper-Nickel
E 243 Practice for Electromagnetic (Eddy-Current) Exami-
A
Copper UNS Nos. C12000, and C12200 are classified in Classification B 224.
nation of Copper and Copper-Alloy Tubes
E 255 Practice for Sampling Copper and CopperAlloys for
NOTE 1—Designations listed in Classification B 224.
the Determination of Chemical Composition
1.5 The following safety hazard caveat pertains only to the
E 478 Test Methods for Chemical Analysis of Copper
test methods described in this specification. This standard does
Alloys
not purport to address all of the safety concerns, if any,
associated with its use. It is the responsibility of the user of this
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
and CopperAlloys and is the direct responsibility of Subcommittee B05.04 on Pipe Standards volume information, refer to the standard’s Document Summary page on
and Tube. the ASTM website.
3
Current edition approved Oct. 1, 2007. Published November 2007. Withdrawn.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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B956–07
E 527 Practice for Numbering Metals and Alloys in the 5.2.2.1 Whether a pressure test is be used along with the
Unified Numbering System (UNS) eddy-current test (13.3 and 13.4),
5.2.3 Whether cut ends of the tube are to be deburred,
3. Terminology
chamfered, or otherwise treated (Section 15),
3.1 For the definitions of terms related to copper and copper 5.2.4 If the product is to
...

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