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4J36 Invar Alloy Strip Low Expansion ASTM F1684 for Glass Sealing
4J36 Invar Alloy Strip Low Expansion ASTM F1684 for Glass Sealing
Specifications
Brand Name :
HUONA
Model Number :
STRIP
Certification :
ISO9001
Place of Origin :
CHINA
MOQ :
1KG
Price :
Bargain
Payment Terms :
T/T
Supply Ability :
1000kg Per Week
Delivery Time :
WEEK
Packaging Details :
1500tons/Year
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)
Description

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.

4J36 Invar Alloy Strip Low Expansion ASTM F1684 for Glass Sealing

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



4J36 Invar Alloy Strip Low Expansion ASTM F1684 for Glass Sealing
4J36 Invar Alloy Strip Low Expansion ASTM F1684 for Glass Sealing
4J36 Invar Alloy Strip Low Expansion ASTM F1684 for Glass Sealing
4J36 Invar Alloy Strip Low Expansion ASTM F1684 for Glass Sealing

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4J36 Invar Alloy Strip Low Expansion ASTM F1684 for Glass Sealing

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Product Detail
Brand Name :
HUONA
Model Number :
STRIP
Certification :
ISO9001
Place of Origin :
CHINA
MOQ :
1KG
Price :
Bargain
Contact Supplier
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4J36 Invar Alloy Strip Low Expansion ASTM F1684 for Glass Sealing

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
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