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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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STANDARD published on 1.10.2019

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The information about the standard:

Designation standards: ASTM B956-19
Note: WITHDRAWN
Publication date standards: 1.10.2019
SKU: NS-973562
The number of pages: 10
Approximate weight : 30 g (0.07 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM B956-19 :

Keywords:

condenser, copper, copper alloys, heat exchanger, integral fins, welded tube, UNS No. C12000, UNS No. C12200, UNS No. C19200, UNS No. C19400, UNS No. C23000, UNS No. C44300, UNS No. C44400, UNS No. C44500, UNS No. C68700, UNS No. C70400, UNS No. C70600, UNS No. C70620, UNS No. C71000, UNS No. C71500, UNS No. C71520, UNS No. C72200,

Additional information

1. 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

C12000^A

DLP Phosphorized, low residual phosphorus

C12200^A

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 determine legality of sales in their location.

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

E54-80(1996)	Standard Test Methods for Chemical Analysis of Special Brasses and Bronzes (Withdrawn 2002)
E62-89(1996)	Standard Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)
B153-22	Standard Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing
E53-07	Standard Test Method for Determination of Copper in Unalloyed Copper by Gravimetry
E29-22	Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E8-04	Standard Test Methods for Tension Testing of Metallic Materials
B858-06(2024)	Standard Test Method for Ammonia Vapor Test for Determining Susceptibility to Stress Corrosion Cracking in Copper Alloys
B846-24	Standard Terminology for Copper and Copper Alloys
B601-24	Standard Classification for Temper Designations for Copper and Copper Alloys—Wrought and Cast
B543-07	Standard Specification for Welded Copper and Copper-Alloy Heat Exchanger Tube
B224-16(2022)	Standard Classification of Coppers
E527-23	Standard Practice for Numbering Metals and Alloys in the Unified Numbering System (UNS)
E478-24	Standard Test Methods for Chemical Analysis of Copper Alloys
E112-25	Standard Test Methods for Determining Average Grain Size
E255-23	Standard Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition
E243-24	Standard Practice for Electromagnetic (Eddy Current) Examination of Copper and Copper-Alloy Tubes
E118-89(1996)	Standard Test Methods for Chemical Analysis of Copper-Chromium Alloys
B154-16(2022)	Standard Test Method for Mercurous Nitrate Test for Copper Alloys

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