What Makes Inv36 Alloy Powder the Perfect Fit for Cryogenic and Precision Applications

Inv36 alloy powder, also known as Invar 36, is a low-expansion iron-nickel alloy consisting of approximately 36% nickel and balance iron. It is known for its ultra-low coefficient of thermal expansion (CTE), high dimensional stability, and excellent processing performance.

Exceptional Dimensional Stability

Inv36 alloy powder offers:

• Near-zero thermal expansion between –200°C to +200°C

• Minimal distortion under temperature fluctuations

• Ideal for parts requiring precise tolerances

These properties make it a trusted material in aerospace, electronics, and metrology fields.

Strong Mechanical and Thermal Properties

In addition to low expansion, Inv36 delivers:

• High toughness at cryogenic temperatures

• Moderate strength with excellent ductility

• Good corrosion resistance in controlled environments

Additive Manufacturing and Powder Metallurgy Ready

HUAXIAO TECH supplies gas-atomized Inv36 alloy powder with:

• High sphericity and clean surface morphology

• Controlled particle size distribution (15–53 μm typical)

• Excellent flowability for selective laser melting (SLM) and electron beam melting (EBM)

Key Applications

• Cryogenic containers and satellite components

• Shadow masks and precision optical mounts

• Electronic measuring devices and sealing frames

• Aerospace structures requiring dimensional accuracy

Benefits Summary

• Ultra-low thermal expansion for dimensional control

• Cryogenic mechanical reliability

• Compatibility with advanced manufacturing processes

• Proven performance in precision-critical environments

Frequently Asked Questions (FAQ)

Q1: What is the typical CTE of Inv36?
A1: Around 1.2 × 10⁻⁶ /°C between 20–100°C.

Q2: Can Inv36 powder be used in 3D printing?
A2: Yes, it is optimized for use in laser powder bed fusion and other metal AM technologies.

Q3: What is the storage condition for Inv36 powder?
A3: Store in a dry, sealed container away from humidity to prevent oxidation.

Conclusion

Inv36 alloy powder provides unmatched thermal stability and is ideal for high-precision, low-expansion requirements. HUAXIAO TECH offers tailored powder solutions for critical industries.

Contact HUAXIAO TECH today to request specifications or a sample for your next application.