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Formula: Fe54/Ni29/Co17
Form: Tube
Material: Glass Sealing Alloy
Commodity: Alloys
Temper:
As Drawn
Hazard Pictogram:
GHS07,GHS08
Glass Sealing Alloy Tube (Fe54/Ni29/Co17) is a range of low melting alloy materials available in tube form from Goodfellow. With over 119 variations, these alloys have properties such as low melting points, high thermal and electrical conductivity, corrosion resistance, and easy formability. They are commonly used for glass-to-metal seals in vacuum tubes, lamps, and other electrical components where a hermetic seal between glass and metal is required. The alloys wet and adhere to glass when heated, creating a vacuum-tight bond for sensitive devices. With their versatile properties and applications, Glass Sealing Alloy Tubes from Goodfellow enable innovative designs across industries.
Health hazard/Hazardous to the ozone layer
Serious health hazard
Tolerances
Tube
| Outside Diameter | =<2mm | ±0.05mm |
|---|---|---|
| Outside Diameter | 2mm - 5mm | ±0.1mm |
| Outside Diameter | >5mm | ±5% |
| Wall Thickness | ±10% |
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 |
Physical Properties
| Element | Value |
|---|---|
| Density( gcm⁻³ ) | 8.36-8.5 |