Huona (Shanghai) New Material Co., Ltd.
| Payment Terms | T/T |
| Supply Ability | 1500tons/Year |
| Delivery Time | A WEEK |
| Packaging Details | DIN Spool, Carton, Wooden Case |
| Model NO. | alloy 52 |
| Transport Package | DIN Spool, Carton, Wooden Case |
| HS Code | 7505220000 |
| Specification | Customized |
| Origin | Jiangsu, China |
| Production Capacity | 1500tons/Year |
| Country of Origin | China (OEM and logo customization available) |
| Brand Name | HUONA |
| Model Number | WIRE |
| Certification | ISO 9001, ROHS, EN 10204 3.1 |
| Place of Origin | CHINA |
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Product Specification
| Payment Terms | T/T | Supply Ability | 1500tons/Year |
| Delivery Time | A WEEK | Packaging Details | DIN Spool, Carton, Wooden Case |
| Model NO. | alloy 52 | Transport Package | DIN Spool, Carton, Wooden Case |
| HS Code | 7505220000 | Specification | Customized |
| Origin | Jiangsu, China | Production Capacity | 1500tons/Year |
| Country of Origin | China (OEM and logo customization available) | Brand Name | HUONA |
| Model Number | WIRE | Certification | ISO 9001, ROHS, EN 10204 3.1 |
| Place of Origin | CHINA | ||
| High Light | Heat Resistant Low Expansion Alloy ，Heat Resistant Nickel Iron Alloy ，Feni52 Low Expansion Alloy | ||
4J50 wire is a precision iron-nickel soft magnetic alloy containing approximately 50% nickel and is equivalent to ASTM F15 standard. It is designed for applications requiring a close thermal expansion match with borosilicate glass and ceramic materials, making it ideal for glass-to-metal sealing.
This alloy wire offers excellent soft magnetic properties, good mechanical stability, and consistent thermal performance. It is widely used in electronic tubes, relays, vacuum devices, sensors, and microelectronic packaging. 4J50 wire is often referred to as a Kovar-type sealing material and is compatible with a wide range of high-reliability electronic and aerospace applications.
Matched thermal expansion to borosilicate hard glass
Stable magnetic and mechanical performance
Excellent glass-sealing and vacuum compatibility
Smooth surface and high dimensional precision
Good formability, weldability, and corrosion resistance
Low outgassing for vacuum or hermetically sealed applications
Glass-to-metal sealed headers and pins
Vacuum tubes, electronic relays, and sensors
IC package leads and transistor enclosures
Aerospace instrumentation and feedthroughs
Medical electronics and hermetically sealed devices
Thermal expansion matched sealing for glass/ceramic components
| Element | Typical Content (%) |
|---|---|
| Nickel (Ni) | 49.0 – 51.0 |
| Cobalt (Co) | ≤ 0.50 |
| Manganese (Mn) | 0.30 – 0.60 |
| Silicon (Si) | ≤ 0.30 |
| Carbon (C) | ≤ 0.05 |
| Sulfur (S) | ≤ 0.02 |
| Phosphorus (P) | ≤ 0.02 |
| Iron (Fe) | Balance |
| Property | Typical Value |
|---|---|
| Tensile Strength | ≥ 450 MPa |
| Yield Strength (0.2%) | ≥ 250 MPa |
| Elongation | ≥ 30% |
| Hardness | ≤ 160 HV |
| Density | ~8.2 g/cm³ |
| Thermal Expansion (20–300°C) | ~5.0 × 10⁻⁶ /°C |
| Max Service Temp | ~500°C (932°F) |
| Item | Details |
|---|---|
| Wire Diameter Range | 0.02 mm – 3.0 mm |
| Form | Spools, coils, cut lengths |
| Surface Finish | Bright, oxide-free, annealed |
| Standards | ASTM F15, GB/T 14986, YB/T 5231 |
| Condition | Annealed (soft), hard drawn |
| Packaging | Plastic spool 1 kg – 15 kg, vacuum packed available |
| Certification | ISO 9001, ROHS, EN 10204 3.1 |
| Country of Origin | China (OEM and logo customization available) |
Vacuum packaging or plastic spools
Anti-corrosion treatment
Air/sea/express delivery available
Delivery time: 7–15 business days
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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