ASTM B884-11(2019) - 1.4.2019
 
1. Scope

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.

 
2. Referenced Documents

E92-26

Standard Test Methods for Vickers Hardness and Knoop Hardness of Metallic Materials

E112-25e1

Standard Test Methods for Determining Average Grain Size (Includes all amendments and changes 9/9/2026).

E165-09

Standard Practice for Liquid Penetrant Examination for General Industry

E214-05

Standard Practice for Immersed Ultrasonic Testing by the Reflection Method Using Pulsed Longitudinal Waves (Withdrawn 2007)

E384-22

Standard Test Method for Microindentation Hardness of Materials

E2626-25

Standard Guide for Spectrometric Analysis of Reactive and Refractory Metals

ANSI B46-1

Surface Texture Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.

ASNT SNT-TC-1A

Personnel Qualification and Certification in Nondestructive Testing Available from American Society for Nondestructive Testing (ASNT), P.O. Box 28518, 1711 Arlingate Ln., Columbus, OH 43228-0518, http://www.asnt.org.

E29-22

Standard Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications