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1.1 This specification covers U-bend seamless condenser, evaporator, and heat exchanger tubes of copper and copper alloys up to 2 in., inclusive, in diameter. Tubes for this application are normally made from the following copper or copper alloys:Copper or Copper Alloy Previously Used UNS No. 3 Designation Type of Metal C10200 OF A oxygen-free without residual deoxi- dants C10300 oxygen-free, extra low phosphorus C10800 oxygen-free, low phosphorus C12000 DLP A phosphorized, low residual phos- phorus C12200 DHP A phosphorized, high residual phos- phorus C14200 DPA A phosphorized, arsenical C19200 ... phosphorized, 1 % iron C23000 ... red brass C44300 Types B, admiralty metals C44400 C, C44500 D C60800 ... aluminum bronze C68700 Type B aluminum brass C70400 ... 95-5 copper-nickel C70600 ... 90-10 copper-nickel C71000 ... 80-20 copper-nickel C71500 ... 70-30 copper-nickel C72200 ... copper-nickel A Designations listed in Classification B 224.
1.2 The following safety hazards caveat pertains only to the test methods portion, Section 18, of 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 and health practices and determine the applicability of regulatory limitations prior to use.
ICS Number Code 23.040.15 (Non-ferrous metal pipes)
UNSPSC Code 40182000(Seamless copper tubes); 40101802(Heat exchangers)