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1.1 This specification covers rolled precipitation hardenable nickel-iron-chromium-columbium (Nb)-titanium-aluminum alloy (N09908) plate, sheet, and strip in the annealed condition (temper). This alloy is used as sheathing for super conductor cables, as tooling for fabrication of such cables, and for other applications requiring a material with low coefficient-of-expansion properties.
1.2 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
E8 Test Methods for Tension Testing of Metallic Materials
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E228 Test Method for Linear Thermal Expansion of Solid Materials With a Push-Rod Dilatometer
E1473 Test Methods for Chemical Analysis of Nickel, Cobalt and High-Temperature Alloys
ICS Number Code 77.140.20 (Steels of high quality)
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ASTM B872-96, Standard Specification for Precipitation-Hardening Nickel-Iron-Chromium- Columbium (Nb)-Titanium-Aluminum Alloy (UNS N09908) Plate, Sheet, and Strip, ASTM International, West Conshohocken, PA, 1996, www.astm.orgBack to Top