MachineU > China Products > Minerals & Metallurgy > Iron & Iron Products > Iron > Iron Wire
4J45 Sealing Alloy Wire | Fe-Ni Wire for Sensors Relays Semiconductor Components
4J45 Sealing Alloy Wire | Fe-Ni Wire for Sensors Relays Semiconductor Components
Specifications
Brand Name :
HUONA
Model Number :
WIRE
Certification :
ISO9001 SGS
Place of Origin :
CHINA
MOQ :
1KG
Price :
negotiation
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
Description

Product Overview

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.

Material Composition

  • 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

Specifications

  • 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

Key Features

  • 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

Applications

  • Hermetic seals for semiconductors

  • Infrared sensor housings

  • Relay casings and electronic modules

  • Glass-to-metal seals in communication components

  • Aerospace-grade packages and connectors

Packaging & Shipping

  • Vacuum-sealed or plastic spool packaging

  • Custom labeling and bulk options available

  • Delivery: 7–15 working days

  • Shipping methods: Air freight, sea freight, courier


  • 4J45 Sealing Alloy Wire | Fe-Ni Wire for Sensors Relays Semiconductor Components4J45 Sealing Alloy Wire | Fe-Ni Wire for Sensors Relays Semiconductor Components4J45 Sealing Alloy Wire | Fe-Ni Wire for Sensors Relays Semiconductor Components
Send your message to this supplier
Send Now

4J45 Sealing Alloy Wire | Fe-Ni Wire for Sensors Relays Semiconductor Components

Ask Latest Price
Watch Video
Product Detail
Brand Name :
HUONA
Model Number :
WIRE
Certification :
ISO9001 SGS
Place of Origin :
CHINA
MOQ :
1KG
Price :
negotiation
Contact Supplier
video
4J45 Sealing Alloy Wire | Fe-Ni Wire for Sensors Relays Semiconductor Components

Huona (Shanghai) New Material Co., Ltd.

Verified Supplier
1 Years
shanghai, shanghai
Since 2008
Business Type :
Manufacturer, Exporter
Main Products :
Low Expansion Alloy, Soft Magnetic Alloy, Elastic Alloy
Total Annual :
8000000-100000000
Employee Number :
100~120
Certification Level :
Verified Supplier
Discover similar products
View More

Find Similar Products By Category:

Supplier Homepage Products Low Expansion Alloy
MachineU China Products Minerals & Metallurgy Iron & Iron Products Iron Iron Wire
Contact Supplier
Submit Requirement