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 | ... | 70–30 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. (Warning—Mercury 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
Property Rounded Unit for Observed or
Calculated ValueChemical composition nearest unit in the last righthand place
of figuresTensile strength and yield strength nearest ksi (Nearest 5 MPa) Grain size: Up to 0.055 mm, incl.,
Over 0.055 mmnearest multiple of 0.005 mm
to the nearst 0.010 mmExpansion: 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 |
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