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
Copper Alloy UNS No.

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.