1.1 This specification covers niobium-hafnium-titanium alloy foil, sheet, strip, and plate.

Note 1—Committee B10 has adopted "niobium" as the designation for Element 41, formerly named "columbium."

1.2 The material covered by this specification is R04295, niobium-base alloy containing approximately 10 % hafnium and 1 % titanium.

1.3 Except for dimensional tolerances in Table 4, the values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.

1.4 The following safety hazards caveat pertains only to the test methods portion, Section , of this specification: This standard does not purport to address all of the safety problems, 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.