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| Categories | Low Expansion Alloy |
|---|---|
| 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) |
| Company Info. |
| Huona (Shanghai) New Material Co., Ltd. |
| Verified Supplier |
| View Contact Details |
| Product List |
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.
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
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
| 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 |
| 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) |
| 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
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