ASTM B543M-91

    Withdrawn Standard: ASTM B543M-91 Standard Specification for Welded Copper and Copper-Alloy Heat Exchanger Tube [Metric] (Withdrawn 2000)

    Developed by Subcommittee: B05.04

    WITHDRAWN, NO REPLACEMENT

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    1. Scope

    1.1 This specification covers welded tube of copper and various copper alloys up to 80 mm, inclusive, in diameter, for use in surface condensers, evaporators, heat exchangers, and general engineering applications. Tubes for this application are normally made of the following coppers or copper alloys:

    Copper or Copper Alloy Previously Used UNS No. 2 Designation Type of Metal C10800 oxygen-free, low phosphorus C12200 DHP A 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 C71000 ... 80-20 copper-nickel C71500 ... 70-30 copper-nickel C71640 copper-nickel-iron-manganese C72200 ... A Designation listed in Classification B 224.

    1.2 Warning-Mercury is a definite health hazard in use and disposal. (See 14.1.)


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