ASTM B 956 : 2019
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Specification for Welded Copper and Copper-Alloy Condenser and Heat Exchanger Tubes with Integral Fins
Hardcopy , PDF
30-10-2019
English
01-10-2019
Important note : Users cannot be edited or removed once added to your Multi user PDF.| Committee |
B 05
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| DocumentType |
Standard
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| Pages |
10
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| PublisherName |
American Society for Testing and Materials
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| Status |
Superseded
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| SupersededBy | |
| Supersedes |
1.1This 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.
1.2The tubes are typically used in surface condensers, evaporators, and heat exchangers.
1.3The product shall be produced of the following coppers or copper alloys, as specified in the ordering information.
| Copper or Copper Alloy | 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.
1.4Units—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.
1.5The 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.
1.6Warning—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.
1.7This 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.
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