ASTM F29

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 the standard. The metric equivalents of inch-pound units may be approximate.

2. Referenced Documents

B170 Specification for Oxygen-Free Electrolytic Copper-Refinery Shapes
D1535 Test Method for Specifying Color by the Munsell System
D1729 Practice for Visual Evaluation of Color Differences of Opaque Materials
E228 Test Methods for Linear Thermal Expansion of Solid Materials With a Vitreous Silicon Dilatometer
E29 Practice for Using Significant Digits in Test Data to Determine Conformance with Specifications
E3 Methods of Preparation of Metallographic Specimens
E53 Methods for Chemical Analysis of Copper
F14 Practice for Making and Testing Reference Glass-Metal Bead-Seal

Index Terms

gloss-to-metal sealing; iron-nickel/copper composite wire; vacuum electronics; ICS Number Code 31.240

Citing ASTM Standards

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