Ni35 Powder: The Best Material for Extreme Heat and Corrosive Environments

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If you’re an engineer, materials scientist, or someone working in industries like aerospace, automotive, or energy, you’ve likely encountered the need for high-performance alloys that can handle extreme conditions. One such material that’s gaining popularity for its strength, corrosion resistance, and thermal stability is Ni35 powder.

In this guide, we’re going to take a deep dive into Ni35 powder, exploring its composition, properties, applications, and much more. We’ll also cover the advantages and limitations of Ni35 powder, compare it to other materials, and answer common questions. Whether you’re looking to use Ni35 powder in additive manufacturing, thermal spraying, or high-temperature applications, this article will provide you with all the insights and information you need.


Overview of Ni35 Powder

Ni35 powder is a nickel-based alloy composed of approximately 35% chromium, along with other elements like iron, carbon, and manganese. This alloy is designed to withstand high temperatures and corrosive environments, making it ideal for demanding industrial applications. It’s widely used in thermal spraying, 3D printing for high-performance parts, and chemical processing equipment.

Key Features :

  • Superior Corrosion Resistance: Withstands oxidizing and reducing environments.
  • High-Temperature Strength: Retains mechanical integrity at temperatures up to 1100°C.
  • Thermal Stability: Endures thermal cycling without losing performance.
  • High Durability: Resistant to wear, oxidation, and creep.
  • Versatile Applications: Used in additive manufacturing, thermal spraying, and industrial components.

Composition and Properties of Ni35 Powder

What makes Ni35 powder stand out is its unique composition. By combining nickel with a high percentage of chromium and other elements, it offers a balance of strength, corrosion resistance, and thermal stability. Below is a detailed breakdown of its chemical makeup and mechanical properties.

Chemical Composition

ElementWeight Percentage (%)Function
Nickel (Ni)60.00 – 65.00Provides the base of the alloy, offering oxidation resistance and mechanical strength.
Chromium (Cr)33.00 – 36.00Enhances oxidation resistance and protects against corrosive environments at high temperatures.
Iron (Fe)0.50 – 2.00Adds mechanical strength and improves ductility.
Carbon (C)0.05 maxIncreases hardness and wear resistance.
Manganese (Mn)0.50 maxImproves toughness and aids in deoxidation during production.
Silicon (Si)0.50 maxImproves oxidation resistance and enhances hot-forming properties.

Mechanical and Thermal Properties

PropertyValue
Density8.35 g/cm³
Melting Point1370°C – 1420°C
Ultimate Tensile Strength800-1000 MPa
Yield Strength (0.2% Offset)450-650 MPa
Elongation at Break20-25%
Thermal Conductivity10.5 W/m·K
Oxidation ResistanceEffective up to 1100°C in oxidizing atmospheres.
Corrosion ResistanceExcellent in oxidizing, reducing, and salt-laden environments.

Why These Properties Matter

The high chromium content in Ni35 powder makes it particularly resistant to oxidation, even at elevated temperatures. This makes it a great choice for components exposed to high heat and corrosive gases, such as those in power plants or engines. Its mechanical properties, like high tensile strength and elongation, enable it to withstand stress without breaking, making it ideal for structural applications in harsh environments.


Applications of Ni35 Powder

Now that we’ve covered what Ni35 powder is and its composition, let’s dive into where it’s used. The combination of thermal stability, oxidation resistance, and mechanical strength makes Ni35 powder an excellent choice for a wide array of industries.

Common Applications

IndustryApplication
AerospaceUsed in jet engines, turbine blades, and combustion chambers for high-temperature stability.
AutomotiveIdeal for exhaust manifolds, turbocharger components, and valve seats.
Chemical ProcessingApplied in reactors, heat exchangers, and piping systems that handle corrosive chemicals.
Power GenerationSuitable for gas turbines, boilers, and high-temperature furnace components.
Oil & GasUtilized in downhole drilling tools, valves, and piping for corrosion resistance.
Additive ManufacturingPerfect for 3D printing high-strength, corrosion-resistant parts in aerospace and medical.
Thermal Spray CoatingsUsed for surface coatings in boilers, turbines, and chemical processing equipment.

Ni35 Powder in Aerospace Applications

In the aerospace industry, Ni35 powder is frequently used in jet engines and turbine blades. These components must perform at extremely high temperatures while remaining resistant to oxidation and wear. Ni35 powder’s unique ability to retain its mechanical properties in harsh environments makes it ideal for these applications, contributing to longer-lasting and more reliable aircraft.

Ni35 Powder in Automotive Applications

In the automotive sector, Ni35 powder is often used in turbocharger components and exhaust manifolds. These parts are subjected to extreme heat and pressure in modern engines, and Ni35 powder offers the durability needed to withstand these conditions. Its corrosion resistance also makes it an excellent choice for parts exposed to exhaust gases, extending the lifespan of components and reducing maintenance costs.


Specifications, Sizes, and Standards for Ni35 Powder

When selecting Ni35 powder for your application, it’s important to know the specifications, standards, and sizes available. This ensures that you’re getting the right material for your specific needs, whether it’s for additive manufacturing, thermal spraying, or high-temperature components.

Specifications and Standards

Specification/StandardDetails
UNS NumberN06635
ASTM StandardsASTM B444 (Nickel Alloy Seamless Pipe), ASTM F3055 (Powder for Additive Manufacturing)
AMS StandardsAMS 5599 (Nickel Alloy Sheet, Strip, and Plate)
ISO StandardsISO 15156-3 (Materials for use in sour gas environments)
Powder Particle SizeTypically ranges from 15 to 45 microns, depending on the application (e.g., 3D printing, thermal spray).
Density8.35 g/cm³
Melting Range1370°C – 1420°C

Available Sizes and Forms

FormAvailable Sizes
PowderParticle sizes typically range from 15 to 45 microns, ideal for additive manufacturing and thermal spraying.
Bars/RodsDiameters from 0.5 inches to 3 inches, used for structural components.
Sheets/PlatesThicknesses from 1 mm to 50 mm, suitable for heat exchangers and reactor parts.

Understanding the specifications of Ni35 powder is critical, especially if you’re using it in aerospace, automotive, or chemical processing. Ensuring the correct particle size and composition will allow the powder to perform optimally in your specific application.


Suppliers and Pricing of Ni35 Powder

Finding the right supplier for Ni35 powder is crucial, as the quality and pricing can vary significantly based on factors like particle size, order volume, and supplier reputation. Below is a breakdown of major suppliers and their pricing.

Suppliers and Pricing

SupplierPrice Range (per kg)Notes
Höganäs AB$200 – $320Specializes in metal powders for additive manufacturing and thermal spray applications.
Sandvik Materials$210 – $330Offers advanced materials for aerospace and industrial applications.
Oerlikon Metco$205 – $315Known for high-quality powders used in thermal spraying and laser cladding.
Kennametal Stellite$195 – $310Provides powders for corrosion-resistant and high-temperature applications.

The cost of Ni35 powder typically ranges from $195 to $330 per kilogram, depending on the supplier, particle size, and order volume. It’s essential to choose a reliable supplier to ensure quality and performance in your applications.


Advantages and Limitations of Ni35 Powder

Like any material, Ni35 powder has its advantages and limitations. Understanding these pros and cons will help you determine whether this material is the right fit for your project.

Advantages

AdvantageDescription
High-Temperature Strength: Retains strength at temperatures up to 1100°C.Ideal for aerospace, automotive, and industrial applications.
Corrosion Resistance: Performs exceptionally well in oxidizing and slightly reducing environments.Perfect for chemical processing, oil & gas, and power generation industries.
Thermal Stability: Withstands thermal cycling and prolonged exposure to high heat.Ensures long service life in high-temperature environments.
Versatile Applications: Suitable for a wide range of industries, including additive manufacturing.Allows for customized components in 3D printing and thermal spraying.

Limitations

LimitationDescription
Cost: More expensive than many other nickel alloys and stainless steels.May not be suitable for budget-conscious projects.
Density: Heavier than some other materials like aluminum or titanium.Not ideal for applications where weight is a critical factor.
Machinability: Can be challenging to machine due to its high hardness.Requires specialized machining techniques, which may increase manufacturing time and cost.

Ni35 Powder vs. Other Nickel-Based Alloys

When comparing Ni35 powder to other commonly used nickel-based alloys, it’s important to consider factors like strength, corrosion resistance, and thermal stability. Below is a comparison between Ni35 powder and other high-performance alloys.

AlloyStrengthsLimitations
Ni35 PowderExcellent oxidation resistance, high strength at elevated temperatures.Higher cost, more challenging to machine.
Inconel 625Superior corrosion resistance in aqueous environments.Less thermal stability than Ni35 at high temperatures.
Monel 400Excellent in marine applications due to corrosion resistance.Limited oxidation resistance at elevated temperatures.
Stainless Steel 316Lower cost, good general corrosion resistance.Poor high-temperature performance compared to Ni35.

FAQs

To clarify any remaining questions you may have about Ni35 powder, here’s a detailed FAQ section.

QuestionAnswer
What is Ni35 powder used for?It is commonly used in aerospace, automotive, chemical processing, and power generation industries for high-temperature, corrosion-resistant components.
How much does Ni35 powder cost?Prices typically range from $195 to $330 per kilogram, depending on the supplier, particle size, and order volume.
Can Ni35 powder be used in 3D printing?Yes, it is suitable for additive manufacturing in high-performance parts requiring corrosion resistance and thermal stability.
What industries use Ni35 powder?Industries such as aerospace, automotive, oil & gas, and chemical processing make extensive use of Ni35 for its thermal and corrosion resistance.
Is Ni35 powder weldable?Yes, it can be welded, but it requires specialized techniques due to its high melting point and oxidation resistance.
How does Ni35 powder compare to Inconel 625?While both are nickel-based alloys, it offers better thermal stability at elevated temperatures, but Inconel 625 excels in aqueous corrosion resistance.

Conclusion: Why Ni35 Powder is the Ideal Choice for High-Temperature and Corrosive Applications

In conclusion, it is an excellent material for industries that require high-temperature performance, oxidation resistance, and mechanical strength. Its unique combination of nickel and chromium makes it ideal for applications in aerospace, automotive, power generation, and beyond.

While Ni35 powder may come with a higher price tag than other nickel-based alloys, the long-term benefits of durability, corrosion resistance, and thermal stability make it a cost-effective solution for high-stress applications. Whether you’re using it in 3D printing, thermal spraying, or chemical processing, Ni35 powder is a reliable and versatile material that delivers unmatched performance in extreme environments.

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