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ASTM B543-07e1

Current Revision

Standard Specification for Welded Copper and Copper-Alloy Heat Exchanger Tube

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1.1 This specification covers welded tube of copper and various copper alloys up to 31/8in., inclusive, in diameter, for use in surface condensers, evaporators, heat exchangers, and general engineering applications. The following coppers or copper alloys are involved:

Copper or
Copper Alloy UNS No.2
Previously Used
Designation
Type of Metal
C10800A...oxygen-free, low phosphorus
C12200A DHP phosphorized, high residual phosphorus
C19400...copper-iron alloy
C23000...red brass
C44300...arsenical admiralty
C44400...antimonial admiralty
C44500...phosphorized admiralty
C68700...arsenical 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...7030 copper-nickel (Modified for Welding)
C71640...copper-nickel-iron-manganese
C72200......
____________

A Copper UNS Nos. C10800 and C12200 are classified in Classification B 224.

1.2 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. (WarningMercury is a definite health hazard in use and disposal. (See 12.1.1.))


This specification covers welded tube of specific copper and various copper alloys of a limited range of diameters, for use in surface condensers, evaporators, heat exchangers, and general engineering applications. The product shall be manufactured by forming the material into a tubular shape on a suitable forming mill. Welding of tube shall be accomplished by forge-welding, fusion-welding, or full finishing that produces a forge weld leaving no crevice in the weld seam visible to the unaided eye. The tube shall conform to tensile strength and yield strength requirements, and shall be subject to expansion, flattening, and reverse bend tests. Mercurous nitrate or ammonia vapor tests shall be required only for selected UNS Numbers of Copper Alloys. Each tube shall be subjected to eddy-current, hydrostatic, and pneumatic tests.


For purposes of determining compliance with the specified limits for requirements of the properties listed in the following table, an observed value or a calculated value shall be rounded as indicated in accordance with the rounding method of Practice E 29.

PropertyRounded Unit for Observed or
Calculated Value
Chemical compositionnearest unit in the last righthand place
of figures
Tensile strength and yield strengthnearest ksi (Nearest 5 MPa)
Grain size: Up to 0.055 mm, incl.,
Over 0.055 mm
nearest multiple of 0.005 mm
to the nearst 0.010 mm
Expansion: Nearest 1 %

SDO ASTM: ASTM International
Document Number B543
Publication Date Oct. 1, 2007
Language en - English
Page Count 11
Revision Level 07e1
Supercedes
Committee B05.04
Publish Date Document Id Type View
Oct. 1, 2007 B0543-07E01 Revision
Oct. 1, 2007 B0543-07 Revision
April 10, 1996 B0543-96E01 Revision
Jan. 1, 1996 B0543-96 Revision
Oct. 1, 2003 B0543-96R03 Reaffirmation