This specification covers zirconium and zirconium-alloy castings for general corrosion-resistant and industrial applications. Material for this specification shall be melted by conventional processes used for reactive metals. Typical methods include the consumable electrode and inductoslag melting processes. The material shall conform to the required chemical composition for zirconium, hafnium, iron, chromium, hydrogen, nitrogen, carbon, oxygen, phosphorus, tin, and niobium. Product analysis and heat treatment shall be performed on the material, and shall conform within the specified check analysis tolerances.

1.1 This specification covers zirconium and zirconium-alloy castings for general corrosion-resistant and industrial applications.

1.2 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.