ZYTC Alloy, a trusted Chinese manufacturer and exporter of precision expansion alloys, provides AMS-I-23011Invar 36 (also named Nilo 36, Pernifer 36) fully compliant with aerospace material specifications. AMS-I-23011 defines iron-nickel, iron-nickel-cobalt and iron-nickel-chromium alloys designed for glass-to-metal and ceramic-to-metal sealing in electronic assemblies. Within this specification, Invar 36 is the most widely adopted low thermal expansion alloy for aerospace and high-reliability precision projects. Contact us now for an AMS-I-23011 Invar 36 quote📧 daisy@zytcsteel.com
📲 +86 17335753350 |  |
Invar 36 is an Fe-Ni alloy containing 36% nickel and balance iron. Its hallmark characteristic is an extremely low coefficient of thermal expansion across a wide temperature range. The alloy maintains stable dimensions under thermal cycling and thermal stress, which is critical for precision equipment that cannot tolerate dimensional shift during temperature changes. It also delivers good mechanical strength and moderate corrosion resistance, ideal for electronics, aerospace, cryogenic, optical and nuclear industries. Chemical Composition| Chemical Composition (Basic Density 8.36) | | Weight % | Ni | Fe | Co | C | Mn | Si | Al | Cr | Mg | Zr | Ti | Cu | Mo | Alloy K
Kovar | 29.0 | 53.0 | 17.0 | 0.04 max | 0.50 max | 0.20 | 0.10 max | 0.20 max | 0.10 max | 0.10 max | 0.10 max | 0.20 max | 0.20 max |
Mechanical Properties| Material | Condition | Yield Strength (0.1% Offset) | Tensile Strength | Elongation % | | Psi | MPa | Psi | MPa | Alloy K
Kovar | Annealed | 49,000 | 340 | 75,000 | 520 | 42 |
Key Properties of AMS-I-23011 Invar 36- Ultra-low coefficient of thermal expansion at ambient and sub-zero temperatures
- Excellent dimensional stability under thermal stress and thermal cycling
- Good mechanical strength
- Suitable for glass and ceramic hermetic sealing
- Stable performance for high-reliability electronic and aerospace assemblies
- Maintains dimensional integrity in cryogenic environments
Main Applications of AMS-I-23011 Invar 36- Aerospace AMS-I-23011 Invar 36 offers reliable corrosion resistance and stable thermal performance. Widely used in aircraft and spacecraft precision components where thermal expansion must be tightly controlled.
- Electronics & Semiconductors Applied for glass/ceramic hermetic sealing, multilayer ceramic capacitor substrates, semiconductor lead frames, microwave components and electronic packaging parts.
- Cryogenic Industry Retains consistent dimensional stability at low temperatures, preferred material for cryogenic precision assemblies.
- Nuclear Industry Suitable for fuel rod cladding, control rod drive mechanisms and other nuclear components requiring stable dimensions.
- Optical Industry The low-expansion feature makes Invar 36 perfect for optical mirrors, lens holders and precision optical frames.
Why Choose ZYTC Alloy for AMS-I-23011 Invar 36- Full compliance with AMS-I-23011 aerospace specification, available in bar, sheet, strip, wire and custom cut pieces
- Strict raw material smelting and batch testing, MTR material test certificates supplied for every shipment
- Precision cutting & custom machining service to match your drawing requirements
- Large inventory of Invar 36 ready for fast delivery, small prototype and mass production orders supported
- Professional technical team with decades of experience in low expansion alloy solutions
- Global export service with competitive factory pricing from China
Get Your QuoteIf you need AMS-I-23011 Invar 36 (Nilo 36 / Pernifer 36) low expansion alloy for aerospace, electronic sealing or optical projects, contact ZYTC Alloy today. Our material engineers will provide tailored recommendations and formal quotation quickly. 📧 daisy@zytcsteel.com
📲 +86 17335753350 |
