Abstract

This specification establishes the requirements for seamless copper and copper alloy tubing on which the external or internal surface, or both, has been modified by a coldforming process to produce an integral enhanced surface for improved heat transfer. The tubes are typically used in surface condensers, evaporators, and heat exchangers. The seamless copper and copper alloy tubing shall have the internal or external surface, or both, modified by a cold forming process to produce an integral enhanced surface for improved heat transfer. The tube, after enhancing, shall be supplied in the annealed (O61) or as-fabricated temper. The enhanced sections of tubes in the as-fabricated temper are in the cold-worked condition produced by the fabricating operation. The unenhanced sections of tubes in the asfabricated temper are in the temper of the tube prior to enhancing, annealed (O61), or light drawn (H55), and suitable for rolling-in operations. Samples of annealed-temper (O61) tubes selected for test shall be subjected to microscopical examination and shall show uniform and complete recrystallation. Grain size and mechanical properties such as tensile strength and yield strength of the alloys shall be determined. Expansion and flattening tests shall be done to the alloys for performance evaluation. Non-destructive tests such as eddy-current test, hydrostatic test, and pneumatic test shall be done as well.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

1.1 This specification establishes the requirements for seamless copper and copper alloy tubing on which the external or internal surface, or both, has been modified by a cold-forming process to produce an integral enhanced surface for improved heat transfer.

1.2 Units The values stated in either in-pound units or SI units are to be regarded separately as the standard. Within the text, the SI units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems could result in nonconformance with the specification.

1.3 The tubes are typically used in surface condensers, evaporators, and heat exchangers.

1.4 The product shall be produced of the following coppers or copper alloys, as specified in the ordering information.

Note 1Designations listed in Classification B224 .

1.5 The following safety hazard caveat pertains only to the test methods described in 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.

1.6 Product produced in accordance with the Supplementary Requirements section for military applications shall be produced only to the inch-pound system of this specification.

2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

ASTM Standards

B153 Test Method for Expansion (Pin Test) of Copper and Copper-Alloy Pipe and Tubing

B154 Test Method for Mercurous Nitrate Test for Copper Alloys

B170 Specification for Oxygen-Free Electrolytic Copper--Refinery Shapes

B224 Classification of Coppers

B601 Classification for Temper Designations for Copper and Copper Alloys--Wrought and Cast

B846 Terminology for Copper and Copper Alloys

B858 Test Method for Ammonia Vapor Test for Determining Susceptibility to Stress Corrosion Cracking in Copper Alloys

B900 Practice for Packaging of Copper and Copper Alloy Mill Products for U.S. Government Agencies

B968/B968M Test Method for Flattening of Copper and Copper-Alloy Pipe and Tube

D4727/D4727M Specification for Corrugated and Solid Fiberboard Sheet Stock (Container Grade) and Cut Shapes

E3 Guide for Preparation of Metallographic Specimens

E8/E8M Test Methods for Tension Testing of Metallic Materials

E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications

E53 Test Method for Determination of Copper in Unalloyed Copper by Gravimetry

E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)

E112 Test Methods for Determining Average Grain Size

E118 Test Methods for Chemical Analysis of Copper-Chromium Alloys

E243 Practice for Electromagnetic (Eddy-Current) Examination of Copper and Copper-Alloy Tubes

E255 Practice for Sampling Copper and Copper Alloys for the Determination of Chemical Composition

E478 Test Methods for Chemical Analysis of Copper Alloys

E2575 Test Method for Determination of Oxygen in Copper and Copper Alloys

Keywords

condenser; copper; copper alloys; heat exchanger; integral fins; seamless; tube; UNS No. C10100; UNS No. C10200; UNS No. C10300; UNS No. C10800; UNS No.C12000; UNS No.C12200; UNS No. C14200; UNS No. C19200; UNS No. C23000; UNS No. C44300; UNS No. C44400; UNS No. C44500; UNS No. C60800; UNS No. C68700; UNS No. C70400; UNS No. C70600; UNS No. C70620; UNS No. C71000; UNS No. C71500; UNS No. C71520; UNS No. C72200; UNS C19200--tube (seamless) for condensers/heat exchangers; UNS C23000--tube (for condensers/heat exchangers); UNS C44300 (admiralty, arsenical)--tube; UNS C44400 (admiralty, antimonial (Cu-Zn-Sn)); UNS C44500 (admiralty, phosphorized (Cu-Zn-Sn))--tube; UNS C60800 (aluminum bronze); UNS C68700 (aluminum brass, aresenical); UNS C70400 (copper-nickel, 5 %); UNS C70600 (Cu-Ni)--tube (for condensers/heat exchangers); UNS C70620 (90/10 Cu-Ni welding rod); UNS C71000--tube (for condensers/heat exchangers); UNS C71500--tube (for condensers/heat exchangers); UNS C71520 (70/30 Cu-Ni welding rod); Aluminum bronzes--specifications; Brass pipe/tube--specifications; Bronze pipe/tube--specifications; Condenser and heat exchanger systems--copper/copper alloy; Integral fins; Seamless Cu/Cu alloy tube--specifications; UNS C10100 (oxygen-free copper)--tube (for condensers/heat exchangers; UNS C10200--tube (for condensers/heat exchangers); UNS C10300--tube (for condensers/heat exchangers); UNS C10800--tube (for condensers/heat exchangers); UNS C12000--tube (for condensers/heat exchangers); UNS C12200--tube (for condensers/heat exchangers); UNS C14200--tube (for condensers/heat exchangers); UNS C72200 (copper nickel)--tube ICS Number Code 2200; 23.040.15 (Non-ferrous metal pipes)

DOI: 10.1520/B0359_B0359M-12

ASTM International is a member of CrossRef.

ASTM B359 / B359M