1.1''This specification establishes the requirements for welded copper-nickel alloy pipe for general engineering purposes. The following alloys are covered:2

Copper Alloy UNS No.2	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 inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3''This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.