Glass Sealing Alloy Straight Wire (Fe54/Ni29/Co17)

Glass Sealing Alloy Straight Wire (Fe54/Ni29/Co17) delivers high-strength, precision-engineered performance for direct insertion into glass sealing applications where alignment and rigidity are paramount. The iron-nickel-cobalt formulation is thermally matched to borosilicate and similar glasses, reducing mechanical stress and ensuring long-term hermetic stability under fluctuating thermal conditions. Its straight form makes it ideal for use in lead frames, pin feedthroughs, and sealed electrode assemblies across sectors like aerospace, photonics, and vacuum electronics. This alloy is integral in fabricating reliable connections in X-ray tube interfaces, infrared detectors, and sealed gas discharge components. Engineered for low impurity content and excellent surface finish, it ensures strong interfacial bonding and minimizes inclusion-related failures. Glass Sealing Alloy Straight Wire (Fe54/Ni29/Co17) underpins modern research in miniaturized sensors and high-precision instrumentation, enabling robust, reproducible glass-to-metal interfaces critical to advanced device architectures in both industrial and scientific domains.

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Tolerance

Properties

Reference & Citations

Health hazard/Hazardous to the ozone layer

Serious health hazard

each

Tolerances

Wire

Diameter		±10%
Length		+5% / -1%

Material Properties for Alloys

Mechanical Properties

Element	Value
Elongation at break( % )	30
Modulus of elasticity( GPa )	207
Tensile strength( MPa )	510-520

Electrical Properties

Element	Value
Electrical resistivity( µOhmcm )	48.9
Temperature coefficient( K⁻¹ )	0.0037

Magnetic Properties

Element	Value
Curie temperature( C )	435

Thermal Properties

Element	Value
Melting point( C )	1450
Specific heat( J K⁻¹ kg⁻¹ )	439@23°C
Thermal conductivity( W m⁻¹ K⁻¹ )	17.3@23°C
Coefficient of thermal expansion( x10⁻⁶ K⁻¹ )	4.81@20-200°C