1.1 This specification covers niobium-titanium alloy billets, bars, and rods, at 46 to 48 % titanium. This material is used in the manufacture of wire for superconducting 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.
1.3 The following precautionary caveat pertains only to the test methods portion, Section 14, 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.4 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.
ASTM B884-11(2019) Referenced Document
ASTM E112 Standard Test Methods for Determining Average Grain Size
ASTM E165/E165M Standard Practice for Liquid Penetrant Testing for General Industry
ASTM E214 Standard Practice for Immersed Ultrasonic Examination by the Reflection Method Using Pulsed Longitudinal Waves
ASTM E2626 Standard Guide for Spectrometric Analysis of Reactive and Refractory Metals*, 2024-04-22 Update
ASTM E29 Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
ASTM E384 Standard Test Method for Microindentation Hardness of Materials
ASTM E92 Standard Test Method for Vickers Hardness of Metallic Materials
ASTM B884-11(2019) history
2019ASTM B884-11(2019) Standard Specification for Niobium-Titanium Alloy Billets, Bar, and Rod for Superconducting Applications
2011ASTM B884-11 Standard Specification for Niobium-Titanium Alloy Billets, Bar, and Rod for Superconducting Applications
2005ASTM B884-05 Standard Specification for Niobium-Titanium Alloy Billets, Bar, and Rod for Superconducting Applications
2001ASTM B884-01 Standard Specification for Niobium-Titanium Alloy Billets, Bar and Rod for Superconducting Applications
1997ASTM B884-97 Standard Specification for Niobium-Titanium Alloy Billets, Bar and Rod for Superconducting Applications