This specification covers the six grades of zirconium and zirconium alloy ingots: Grade R60700, Grade R60702, Grade R60703, Grade R60704, Grade R60705, and Grade R60706. These materials shall be manufactured by electron beam, vacuum, or inert atmosphere melting in furnaces. The material shall form to the required chemical composition of zirconium, hafnium, iron, chromium, tin, hydrogen, nitrogen, carbon, niobium, and oxygen. Check analysis shall be performed. The following test methods shall be done: ultrasonic test and chemical test.

1.1 This specification covers six grades of zirconium ingots.

1.2 The values stated in either inch-pound or SI units are to be regarded separately as standard. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. SI values cannot be mixed with inch-pound values.

1.3 The following precautionary caveat pertains only to the test method portion, Section 10, of 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.