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ASTM B956-19

(Specification)

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

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

ABSTRACT
This specification establishes the requirements for forge-welded copper and copper alloy with integral fins for use in surface condenser, evaporator, and heat exchanger. The product shall be welded tube of one of the following Copper or Copper Alloy UNS Nos.: C12000, C12200, C19200, C23000, C44300, C44400, C44500, C68700, C70400, C70600, C70620, C71000, C71500, C71520, and C72200. The material heat identification or traceability shall be specified if required. The product shall be manufactured by cold forming to produce an integral enhanced surface for improved heat transfer and shall typically be furnished with unenhanced ends, but may be furnished with enhanced ends or stripped ends. Temper conditions (annealed, WO61 or light cold-worked, WC55) for the tubes and the enhanced and unenhanced sections of the tubes are given. The material shall conform to the chemical composition requirements prescribed for copper, tin, aluminum, nickel, cobalt, lead, iron, zinc, manganese, arsenic, antimony, phosphorus, chromium, and other elements such as carbon, sulfur, silicon, and titanium as determined by chemical analysis. Requirements for grain size, dimensions, mass, and mechanical properties including tensile strength and yield strength as determined by tension test are detailed. The performance requirements including expansion, flattening, and reverse bend tests; mercurous nitrate test or ammonia vapor test; and nondestructive tests such as eddy-current, hydrostatic, and pneumatic tests are detailed as well.
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 The tubes are typically used in surface condensers, evaporators, and heat exchangers.  
1.3 The product shall be produced of the following coppers or copper alloys, as specified in the ordering information.    
Copper or Copper Alloy
UNS No.  
Type of Metal  
C12000A  
DLP Phosphorized, low residual phosphorus  
C12200A  
DHP Phosphorized, high residual phosphorus  
C19200  
Phosphorized, 1 % iron  
C19400  
Copper-Iron Alloy  
C23000  
Red Brass  
C44300  
Admiralty, arsenical  
C44400  
Admiralty, antimonial  
C44500  
Admiralty, phosphorized  
C68700  
Aluminum Brass  
C70400  
95-5 Copper-Nickel  
C70600  
90-10 Copper-Nickel  
C70620  
90-10 Copper-Nickel (Modified for Welding)  
C71000  
80-20 Copper-Nickel  
C71500  
70-30 Copper-Nickel  
C71520  
70-30 Copper-Nickel (Modified for Welding)  
C72200  
Copper-Nickel  
Note 1: Designations listed in Classification B224.  
1.4 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.  
1.5 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.  
1.6 Warning—Mercury has been designated by many regulatory agencies as a hazardous substance that can cause serious medical issues. Mercury, or its vapor, has been demonstrated to be hazardous to health and corrosive to materials. Use caution when handling mercury and mercury-containing products. See the applicable product Safety Data Sheet (SDS) for additional information. The potential exists that selling mercury or mercury-containing products, or both, is prohibited by local or national law. Users must determi...

General Information

Status
Historical
Publication Date
30-Sep-2019
Technical Committee
B05 - Copper and Copper Alloys
Drafting Committee
B05.04 - Pipe and Tube
Current Stage
Ref Project

Relations

Replaces
ASTM B956-10 - Standard Specification for Welded Copper and Copper-Alloy Condenser and Heat Exchanger Tubes with Integral Fins
Effective Date
01-Oct-2019
Replaced By
ASTM B956-19e1 - Standard Specification for Welded Copper and Copper-Alloy Condenser and Heat Exchanger Tubes with Integral Fins
Effective Date
01-Oct-2019

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ASTM B956-19 - Standard Specification for Welded Copper and Copper-Alloy Condenser and Heat Exchanger Tubes with Integral FinsASTM B956-19 - Standard Specification for Welded Copper and Copper-Alloy Condenser and Heat Exchanger Tubes with Integral Fins
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ASTM B956-19 - Standard Specification for Welded Copper and Copper-Alloy Condenser and Heat Exchanger Tubes with Integral Fins
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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:B956 −19
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 B956; 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* not purport to address all of the safety concerns, if any,
associated with its use. It is the responsibility of the user of this
1.1 This specification establishes the requirements for heat
standard to establish appropriate safety, health, and environ-
exchanger tubes manufactured from forge-welded copper and
mental practices and determine the applicability of regulatory
copper alloy tubing in straight lengths on which the external or
limitations prior to use.
internal surface, or both, has been modified by cold forming
1.6 Warning—Mercury has been designated by many regu-
process to produce an integral enhanced surface for improved
latory agencies as a hazardous substance that can cause
heat transfer.
serious medical issues. Mercury, or its vapor, has been
1.2 The tubes are typically used in surface condensers,
demonstrated to be hazardous to health and corrosive to
evaporators, and heat exchangers.
materials. Use caution when handling mercury and mercury-
1.3 The product shall be produced of the following coppers containing products. See the applicable product Safety Data
Sheet (SDS) for additional information. The potential exists
or copper alloys, as specified in the ordering information.
that selling mercury or mercury-containing products, or both,
Copper or Copper Alloy
Type of Metal
UNS No. is prohibited by local or national law. Users must determine
legality of sales in their location.
A
C12000 DLP Phosphorized, low residual phosphorus
A
C12200 DHP Phosphorized, high residual phosphorus
1.7 This international standard was developed in accor-
C19200 Phosphorized, 1 % iron
dance with internationally recognized principles on standard-
C19400 Copper-Iron Alloy
ization established in the Decision on Principles for the
C23000 Red Brass
C44300 Admiralty, arsenical
Development of International Standards, Guides and Recom-
C44400 Admiralty, antimonial
mendations issued by the World Trade Organization Technical
C44500 Admiralty, phosphorized
Barriers to Trade (TBT) Committee.
C68700 Aluminum Brass
C70400 95-5 Copper-Nickel
C70600 90-10 Copper-Nickel
2. Referenced Documents
C70620 90-10 Copper-Nickel (Modified for Welding)
2
C71000 80-20 Copper-Nickel
2.1 ASTM Standards:
C71500 70-30 Copper-Nickel
B153 Test Method for Expansion (Pin Test) of Copper and
C71520 70-30 Copper-Nickel (Modified for Welding)
Copper-Alloy Pipe and Tubing
C72200 Copper-Nickel
B154 Test Method for Mercurous Nitrate Test for Copper
A
Copper UNS Nos. C12000 and C12200 are classified in Classification B224.
Alloys
B224 Classification of Coppers
NOTE 1—Designations listed in Classification B224.
B359/B359M Specification for Copper and Copper-Alloy
1.4 Units—The values stated in inch-pound units are to be
Seamless Condenser and Heat Exchanger Tubes With
regarded as standard. The values given in parentheses are
Integral Fins
mathematical conversions to SI units that are provided for
B543/B543M Specification for Welded Copper and Copper-
information only and are not considered standard.
Alloy Heat Exchanger Tube
1.5 The following safety hazard caveat pertains only to the
B601 ClassificationforTemperDesignationsforCopperand
test methods described in this specification. This standard does
Copper Alloys—Wrought and Cast
B846 Terminology for Copper and Copper Alloys
1
ThisspecificationisunderthejurisdictionofASTMCommitteeB05onCopper
and CopperAlloys and is the direct responsibility of Subcommittee B05.04 on Pipe
2
and Tube. For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Current edition approved Oct. 1, 2019. Published October 2019. Originally contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
ε1
approved in 2007. Last previous edition approved in 2010 as B956/B956M–10 . Standards volume information, refer to the standard’s Document Summary page on
DOI: 10.1520/B0956–19. 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 ----------------------
B956−19
B858 Test Method forAmmoniaVaporTest for Determining 3.2.2 unenhanced tube—tube made by processing strip into
Susceptibility to Stress Corrosion Cracking in Copper a tubular shape and forge welding the edges to make a
Alloys longi
...

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1.1 This specification covers UNS N06002, UNS N06030, UNS N06035, UNS N06022, UNS N06200, UNS N10362, UNS N06230, UNS N06600, UNS N06617, UNS N06625, UNS N08020, UNS N08026, UNS N08024, UNS N08120, UNS N08926, UNS N08367, UNS N10242, UNS N10276, UNS N10665, UNS N10675, UNS N12160, UNS R20033, UNS N06059, UNS N06686, UNS N10629, UNS N08031, UNS N06045, UNS N06025, UNS N06699, and UNS R305562 billets and bars for reforging.  
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