Abstract
This specification covers welded copper-nickel alloy pipes produced from Copper Alloy UNS Nos. C70600 and C71500 for general engineering applications. Pipes may be produced in any one of the following tempers: as-welded from annealed sheets, strips, or plates (WM50); as-welded from cold-worked sheets, strips, or plates (WM00, WM01, WM02, and so forth); welded and annealed (WO50); welded, light cold drawn (WR00) or hard cold drawn (WR04), and stress relieved; or fully finished as annealed, light drawn (WH00) or hard drawn (WH04), and stress relieved. Products shall be sampled and prepared, then tested accordingly to examine their conformance to dimensional (outside diameter, specific and stock lengths, wall thickness, squareness of cut, and roundness), mechanical (tensile and yield strengths, and elongation), and chemical composition requirements. Specimens shall also undergo nondestructive tests such as radiographic examination, eddy-current test, and hydrostatic test.
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.
Significance and Use
For purposes of determining compliance with the specified limits for requirements of the properties listed in the following table, and observed value or a calculated value shall be rounded as indicated in accordance with the rounding method of Practice E29.
| Property | Rounded Unit for Observed or Calculated Value |
| |
| Chemical composition | nearest unit in the last right-hand place of figures of the specified limit |
Tensile strength
Yield strength | nearest ksi [nearest MPa up to 10 ksi, incl, nearest 5 MPa over 10 ksi] |
| Elongation | nearest 1 % |
1. Scope
1.1 This specification establishes the requirements for welded copper-nickel alloy pipe for general engineering purposes. The following alloys are covered:
Copper Alloy
UNS No. | Type of Metal |
|
| |
| C70600 | 90-10 copper-nickel |
| C70620 | 90-10 copper-nickel |
| (Modified for Welding) |
| C71500 | 70-30 copper-nickel |
| C71520 | 70-30 copper-nickel |
| (Modified for Welding) |
1.2 Units—The values stated in either inch-pound units or SI units are to be regarded separately as 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.
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
B601 Classification for Temper Designations for Copper and Copper Alloys--Wrought and Cast
B846 Terminology for Copper and Copper Alloys
E8 Test Methods for Tension Testing of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E54 Test Methods for Chemical Analysis of Special Brasses and Bronzes
E62 Test Methods for Chemical Analysis of Copper and Copper Alloys (Photometric Methods)
E243 Practice for Electromagnetic (Eddy-Current) Examination of Copper and Copper-Alloy Tubes
E478 Test Methods for Chemical Analysis of Copper Alloys
Other Documents
AmericanWeldingSocie Specification .7
Keywords
copper nickel; pipe; welded pipe; UNS No. C70600; UNS No. C70620; UNS No. C71500; UNS No. C71520; Copper alloy pipe--specifications; UNS C70600 (Cu-Ni)--pipe/tube (seamless/welded); UNS C71500--pipe/tube (seamless/welded); Welded Cu/Cu alloy pipe;
ICS Code
ICS Number Code 77.150.30 (Copper products)
DOI: 10.1520/B0467-09
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Citing ASTM Standards
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