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Brand Name : HUONA
Model Number : PLATE
Certification : ISO9001
Place of Origin : CHINA
MOQ : 1KG
Price : US$12.00-45.00
Payment Terms : T/T
Supply Ability : 1000kg Per Week
Delivery Time : WEEK
Packaging Details : 1500tons/Year
Model NO. : Expansion Alloy
Transport Package : DIN Spool, Carton, Wooden Case
HS Code : 7505220000
Purity : Alloy
Production Capacity : 1500tons/Year
Origin : Jiangsu, China
Alloy 52, also known as Niloy 52, is a Nickel–Iron alloy designed for controlled expansion applications. Composed of approximately 52% Nickel and the remainder Iron, Alloy 52 exhibits low coefficient of thermal expansion (CTE), making it ideal for sealing applications where dimensional stability across temperature variations is critical.
This alloy is widely used in glass-to-metal seals, ceramic-to-metal seals, and various high-precision electronic packaging applications, including vacuum tubes, aerospace components, and automotive electronics.
Property | Value |
---|---|
Alloy Name | Alloy 52 / Niloy 52 |
Chemical Composition | Ni: ~52%, Fe: Balance |
CTE (20–100°C) | ~5.0 × 10⁻⁶ /°C |
Density | ~8.1 g/cm³ |
Tensile Strength | 450–700 MPa (annealed) |
Yield Strength | ≥ 300 MPa |
Elongation | ≥ 25% |
Hardness | ~160 HV (annealed) |
Electrical Resistivity | ~0.60 μΩ·m |
Magnetic Properties | Magnetic at room temperature |
Melting Range | ~1450°C |
Wire Diameter Range | 0.10 mm – 6.0 mm (custom sizes available) |
Surface Finish | Bright / Annealed / Oxidized |
Packaging | Spools, coils, or custom lengths |
Industry | Application Examples |
---|---|
Electronics | Glass-to-metal seals for vacuum tubes, sensor housings, and transistor components |
Optoelectronics | Semiconductor package seals, LED housings, laser equipment |
Aerospace | Hermetic seals in sensors, communication equipment, and pressure transducers |
Automotive | Sealing components for automotive electronics, sensors, and modules |
Telecommunications | Microwave components, fiber optic packaging, satellite systems |
Medical Devices | Bio-compatible hermetic sealing in implantable devices, sensors |
Defense | Sealed sensors, high-stability components for military electronics |
Low Thermal Expansion: The alloy’s low CTE ensures dimensional stability across a wide temperature range, making it ideal for glass-to-metal seals and other applications that require precise size retention despite temperature changes.
Strong Sealing Performance: Alloy 52 is highly valued for its ability to create airtight seals between dissimilar materials like glass and metal, which is critical for applications in vacuum tubes, sensors, and other electronic components.
Corrosion Resistance: The alloy is resistant to many forms of corrosion and oxidation, which makes it a durable material for harsh environments, including aerospace, automotive, and medical devices.
Magnetic Properties: Magnetic at room temperature, it can be used in applications where electromagnetic properties are required.
Good Weldability and Machinability: The alloy can be welded and machined easily, allowing for flexible manufacturing processes in various industrial applications.
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Astm F30/Nickel Alloy 52 Niloy52 Low Expansion Alloy 4J29 Kovar Feni36 Nickel Iron Invar Plate Images |