ASTM B280-20 pdf free.Standard Specification for Seamless Copper Tube for Air Conditioning and Refrigeration Field Service.
1. 1 This specification establishes the requirements for seam- less copper tube intended for use in the connection, repairs, or alternations of air conditioning or refrigeration units in the field
NoTE 1-Fittings used for soldered or brazed connections in air conditioning and refrigeration systems are described in ASME Standard B16.22.
Note 2—The assembly of copper tubular systems by soldering is described in Practice B828.
Note 3—Solders for joining copper tubular systems are described in Specification B32. The requirements for acceptable I1ues for these systems are described in Specification 13813.
5. Materials and Manufacture
5.1 Materials—The material of manufacture shall he billets. bars, or tube and shall be of such soundness as to be suitable for processing into the tubular products described.
5.2 Manufacture:
5.2.1 The tube shall be manufactured by such hot or cold working processes as to produce a homogeneous unilorm wrought structure in the finished product. The tube shall be cold drawn to the finished size and wall thickness.
5.2.2 Coiled lengths specified 060, soft annealed temper. or O62. heavy anneal temper, shall be bright annealed after coiling, then dehydrated. and capped. plugged. crimped, or otherwise closed at both ends so as to maintain the internal cleanness of the tubing under normal conditions of handling and storage.
5.2.3 Straight lengths specified H55 light drawn or H5X drawn general purpose shall be cleaned and capped. plugged. or otherwise closed at both ends so as to maintain the internal cleanness of the tubing under normal conditions of handling and storage.ASTM B280-20 pdf free.