ASTM F29-97(2009)
Historical Standard: ASTM F29-97(2009) Standard Specification for Dumet Wire for Glass-to-Metal Seal Applications
SUPERSEDED (see Active link, below)
ASTM F29
1. Scope
1.1 This specification covers round, copper-coated 42 % nickel-iron wire, commonly known as dumet, intended primarily for sealing to soft glass.
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 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 and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
B170 Specification for Oxygen-Free Electrolytic Copper--Refinery Shapes
D1535 Practice for Specifying Color by the Munsell System
D1729 Practice for Visual Appraisal of Colors and Color Differences of Diffusely-Illuminated Opaque Materials
E3 Guide for Preparation of Metallographic Specimens
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E53 Test Method for Determination of Copper in Unalloyed Copper by Gravimetry
E228 Test Method for Linear Thermal Expansion of Solid Materials With a Push-Rod Dilatometer
F14 Practice for Making and Testing Reference Glass-Metal Bead-Seal
Keywords
gloss-to-metal sealing; iron-nickel/copper composite wire; vacuum electronics;
ICS Code
ICS Number Code 31.240 (Mechanical structures for electronic equipment)
DOI: 10.1520/F0029-97R09
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