Huona (Shanghai) New Material Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 1000tons/Year |
| Delivery Time | 7–15 working days |
| Packaging Details | Vacuum-sealed or plastic spool packaging |
| Coefficient of Thermal Expansion, 20–300°C | 7.5 × 10⁻⁶ /°C |
| Density | 8.2 g/cm³ |
| Electrical Resistivity | 0.55 μΩ·m |
| Tensile Strength | ≥ 450 MPa |
| Magnetic Properties | Weakly magnetic |
| Diameter range | 0.02 mm – 3.0 mm |
| Brand Name | HUONA |
| Model Number | WIRE |
| Certification | ISO9001 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T | Supply Ability | 1000tons/Year |
| Delivery Time | 7–15 working days | Packaging Details | Vacuum-sealed or plastic spool packaging |
| Coefficient of Thermal Expansion, 20–300°C | 7.5 × 10⁻⁶ /°C | Density | 8.2 g/cm³ |
| Electrical Resistivity | 0.55 μΩ·m | Tensile Strength | ≥ 450 MPa |
| Magnetic Properties | Weakly magnetic | Diameter range | 0.02 mm – 3.0 mm |
| Brand Name | HUONA | Model Number | WIRE |
| Certification | ISO9001 | Place of Origin | CHINA |
| High Light | 4J45 Low Expansion Alloy ，Custom Low Expansion Alloy ，4J45 nickel silver strip | ||
4J45 alloy wire is a controlled thermal expansion Fe-Ni alloy consisting of approximately 45% nickel. It is engineered for applications requiring dimensional stability and hermetic sealing, particularly where thermal compatibility with glass or ceramic is crucial. This material is ideal for use in semiconductor lead frames, sensor housings, and high-reliability electronic packaging.
Nickel (Ni): ~45%
Iron (Fe): Balance
Trace elements: Mn, Si, C
CTE (Coefficient of Thermal Expansion, 20–300°C): ~7.5 × 10⁻⁶ /°C
Density: ~8.2 g/cm³
Electrical Resistivity: ~0.55 μΩ·m
Tensile Strength: ≥ 450 MPa
Magnetic Properties: Weakly magnetic
Diameter range: 0.02 mm – 3.0 mm
Surface finish: Bright / oxide-free
Supply form: Spools, coils, cut lengths
Delivery condition: Annealed or cold-drawn
Custom dimensions available
Moderate thermal expansion matching glass/ceramic
Excellent sealing and bonding characteristics
Good weldability and corrosion resistance
Dimensional stability under thermal cycling
Suitable for microelectronics and optical devices
Hermetic seals for semiconductors
Infrared sensor housings
Relay casings and electronic modules
Glass-to-metal seals in communication components
Aerospace-grade packages and connectors
Vacuum-sealed or plastic spool packaging
Custom labeling and bulk options available
Delivery: 7–15 working days
Shipping methods: Air freight, sea freight, courier
Company Details
Business Type:
Manufacturer,Exporter
Year Established:
2008
Total Annual:
8000000-100000000
Employee Number:
100~120
Ecer Certification：
Verified Supplier
Huona (Shanghai) New Material Co., Ltd. Was established in 2008, currently have three divisions: Magnesium Division, Thermal Spray Division and Functional Material Division.Magnesium Division produces magnesium metal products. Various models of high-quality magnesium alloy plate, magnesium rods, hig... Huona (Shanghai) New Material Co., Ltd. Was established in 2008, currently have three divisions: Magnesium Division, Thermal Spray Division and Functional Material Division.Magnesium Division produces magnesium metal products. Various models of high-quality magnesium alloy plate, magnesium rods, hig...
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