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4J36 Rod Invar Alloy Bar Fe Ni Alloy Controlled Expansion Material
| Place of Origin | CHINA |
|---|---|
| Brand Name | HUONA |
| Certification | ISO 9001, SGS, RoHS |
| Model Number | 4J36 |
| Minimum Order Quantity | 5KG |
| Price | Negotiation |
| Packaging Details | Wooden case, steel strip bundling |
| Delivery Time | a week |
| Payment Terms | T/T |
| Supply Ability | 10000kg /week |
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xProduct Details
| Diameter | 3 Mm – 200 Mm | Length | ≤ 6000 Mm |
|---|---|---|---|
| Tolerance | As Per ASTM / GB Standard | Surface | Bright / Polished / Black |
| Certification | ISO 9001, SGS, RoHS | Property Typical Value Density ~8.1 G/cm³ Thermal Expansion (20–100°C) | ~1.2 ×10⁻⁶/°C |
| Tensile Strength | ≥ 450 MPa | Hardness | ~HB 120–150 |
| Highlight | 4J36 Invar Alloy Bar,Fe Ni Alloy Invar 4J36 Bar,Fe Ni Alloy Invar 4J36 Rod |
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Product Description
Product Description
4J36 alloy rod, also known as Invar 36, is a low expansion Fe-Ni alloy containing about 36% nickel. It is widely recognized for its extremely low coefficient of thermal expansion (CTE) around room temperature.
This property makes 4J36 ideal for applications requiring dimensional stability under temperature fluctuations, such as precision instruments, measuring devices, aerospace, and cryogenic engineering.
Key Features
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Fe-Ni controlled expansion alloy (Ni ~36%)
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Very low thermal expansion coefficient
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Excellent dimensional stability
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Good machinability and weldability
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Available in rods, wires, sheets, and custom forms
Typical Applications
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Precision measuring instruments
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Optical and laser system components
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Aerospace and satellite structures
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Electronic packaging requiring dimensional stability
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Cryogenic engineering devices
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Standards of length, balance springs, precision pendulums
Chemical Composition (%)
| Element | Content |
|---|---|
| Fe | Balance |
| Ni | ~36% |
| C, Mn, Si, etc. | Minor |
Physical and Performance Properties
| Property | Typical Value |
|---|---|
| Density | ~8.1 g/cm³ |
| Thermal Expansion (20–100°C) | ~1.2 ×10⁻⁶/°C |
| Tensile Strength | ≥ 450 MPa |
| Hardness | ~HB 120–150 |
| Working Temp | -200°C to 200°C |
| Standard | GB/T, ASTM, IEC |
Available Specifications
| Item | Range |
|---|---|
| Diameter | 3 mm – 200 mm |
| Length | ≤ 6000 mm |
| Tolerance | As per ASTM / GB standard |
| Surface | Bright / Polished / Black |
| Packaging | Wooden case, steel strip bundling |
| Certification | ISO 9001, SGS, RoHS |
| Origin | China (OEM/ODM service available) |
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