Standard Specification for Welded Copper Heat Exchanger Tubes With Internal Enhancement
STANDARD published on 1.4.2019
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Designation standards: ASTM B919-19
Publication date standards: 1.4.2019
The number of pages: 7
Approximate weight : 21 g (0.05 lbs)
Country: American technical standard
Category: Technical standards ASTM
This specification establishes the requirements for welded, internally enhanced copper tube, in straight lengths or coils, suitable for use in refrigeration and air conditioning products or other heat exchangers. The following types of welded tubes are: as-welded and welded tube, subsequently annealed. The material of manufacture shall be sheet or strip, of the required alloy, and may be either cold worked or annealed. The welded tube shall be manufactured from either cold rolled or annealed sheet or strip. The sheet or strip shall be formed into a tubular shape on a suitable forming mill. The material shall conform to the chemical requirements specified. The microstructure shall show complete recrystallization and shall have an average grain size within the limits specified. Nondestructive examination, electromagnetic test, cleanness requirements, and cuprous oxide requirement shall be made to conform to the specified requirements.
Keywords:
C10200, C12200, coils, copper tubes, heat exchanger, internally enhanced, straight lengths, tube, welded,, ICS Number Code 77.140.30 (Steels for pressure purposes)