Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
{"title":"Glass Sealing Alloy Wire 4J28 Fe-Ni Alloy Wire Soft Magnetic Material","imgUrl":"https:\/\/img.chinax.com\/nimg\/25\/b4\/88fa7aed0bb624d280ff479a451e-200x200-1\/glass_sealing_alloy_wire_4j28_fe_ni_alloy_wire_soft_magnetic_material.jpg","attrs":{"Brand Name":"HUONA","Model Number":"WIRE","Certification":"ISO9001","Place of Origin":"CHINA"}}
{"title":"High Precision 4J29 Alloy Wire For Fe-Ni-Co Wire Kovar Type Sealing Alloy","imgUrl":"https:\/\/img.chinax.com\/nimg\/43\/a3\/1086a320508c93bc9a4d402f4a85-200x200-1\/high_precision_4j29_alloy_wire_for_fe_ni_co_wire_kovar_type_sealing_alloy.jpg","attrs":{"Brand Name":"HUONA","Model Number":"wire","Certification":"ISO9001","Place of Origin":"CHINA"}}
{"title":"High Precision 4J32 Alloy Wire Low Expansion Fe-Ni Wire For Vacuum And Sensor","imgUrl":"https:\/\/img.chinax.com\/nimg\/43\/17\/fa879918e91bcb2d8b1b84d600c9-200x200-1\/high_precision_4j32_alloy_wire_low_expansion_fe_ni_wire_for_vacuum_and_sensor_applications.jpg","attrs":{"Brand Name":"HUONA","Model Number":"wire","Certification":"ISO9001","Place of Origin":"CHINA"}}
{"title":"4J36 Invar Wire For Thermostatic Applications Fe-Ni Alloy Wire With Controlled","imgUrl":"https:\/\/img.chinax.com\/nimg\/9e\/ab\/e5aefddcbf4c3e80fbf4d8b4fe32-200x200-1\/4j36_invar_wire_for_thermostatic_applications_fe_ni_alloy_wire_with_controlled_thermal_expansion.jpg","attrs":{"Brand Name":"HUONA","Model Number":"WIRE","Certification":"ISO9001","Place of Origin":"CHINA"}}
4J36 Invar Alloy Strip Low Expansion Iron-Nickel Strip ASTM F1684 for Glass Sealing and Precision Components
Product Attributes
Attribute
Value
Tensile Strength
≥ 450 MPa
Yield Strength (0.2%)
≥ 270 MPa
Elongation
≥ 30%
Hardness
≤ 160 HV
Density
~8.1 g/cm³
Thermal Expansion (20–100°C)
~1.2 × 10⁻⁶ /°C
Max Service Temp
~300°C (572°F)
Country of Origin
China (OEM and custom logo available)
Product Description
4J36 strip, also known as Invar 36, is a low-expansion iron-nickel alloy composed of approximately 36% nickel and 64% iron. It exhibits an extremely low coefficient of thermal expansion in the temperature range of −60°C to 250°C, making it highly suitable for precision instruments and sealing applications.
This strip alloy conforms to ASTM F1684 and is widely used in manufacturing electronic supports, glass-to-metal seals, thermostat components, aerospace instruments, and precision optical systems. Its dimensional stability and excellent mechanical properties under thermal stress make it a preferred material for applications requiring minimal deformation under temperature changes.
Key Features
Exceptionally low thermal expansion from cryogenic to ~250°C
Excellent dimensional stability and formability
Good machinability and weldability
High structural integrity in vacuum and sealed environments
Compatible with glass and ceramic sealing processes
Available in precision thicknesses with bright surface finish
Typical Applications
Glass-to-metal sealed enclosures and headers
Shadow masks and structural parts for CRTs and sensors
Aerospace and aviation instrumentation
Bimetal thermostatic components
Electronic scale frames and supports
Precision molds and measurement tools
Laser/optical mounting brackets
Chemical Composition (%)
Element
Typical Content (%)
Nickel (Ni)
35.0 - 37.0
Carbon (C)
≤ 0.05
Manganese (Mn)
0.30 - 0.60
Silicon (Si)
≤ 0.30
Phosphorus (P)
≤ 0.020
Sulfur (S)
≤ 0.020
Iron (Fe)
Balance
Mechanical Properties (Annealed Condition)
Property
Typical Value
Tensile Strength
≥ 450 MPa
Yield Strength (0.2%)
≥ 270 MPa
Elongation
≥ 30%
Hardness
≤ 160 HV
Density
~8.1 g/cm³
Thermal Expansion (20-100°C)
~1.2 × 10⁻⁶ /°C
Max Service Temp
~300°C (572°F)
Available Specifications
Item
Details
Thickness Range
0.05 mm - 2.0 mm
Width Range
3 mm - 300 mm
Form
Strip in coil, sheet cut-to-length
Surface Finish
Bright, cold-rolled, deburred
Standards
ASTM F1684, GB/T 13240, DIN 17745
Condition
Annealed, stress-relieved
Packaging
Plastic wrap + carton or wooden box
Certification
ISO 9001, ROHS, EN 10204 3.1
Country of Origin
China (OEM and custom logo available)
Packaging & Shipping
Packaging: Plastic spools, vacuum bags, anti-rust wrapping, and customized labels upon request
Shipping Methods: Air freight, sea freight, express delivery
Lead Time: 7-15 working days based on order quantity
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
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...