IN939 Powder: Comprehensive Insights into This High-Performance Alloy

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Inhaltsübersicht

Welcome to the comprehensive guide on IN939 powder, one of the most robust und high-performance superalloys you’ll encounter in the world of advanced manufacturing und turbine technology. Whether you are dealing with extreme temperatures, high stress, or corrosive environments, IN939 powder is a material you need to know inside and out.

This article will take you on a journey through the Zusammensetzung, properties, applicationsund much more about IN939 powder, ensuring you have all the information you need to make fundierte Entscheidungen about whether this nickel-based alloy is right for your project.

Let’s get started!


Overview: What is IN939 Powder?

IN939 powder ist eine Superlegierung auf Nickelbasis designed specifically for applications that demand high-temperature strength, oxidation resistanceund excellent creep resistance. Developed primarily for gas turbine components, IN939 has found its way into a wide range of industries where parts must maintain their integrity under extreme operating conditions.

This material is popular in additive Fertigung und Pulvermetallurgie, where it’s used to create components that must perform in high-pressure und high-temperature environments—such as turbine blades, combustorsund seals.

Key Features of IN939 Powder:

  • High strength retention at temperatures up to 850°C (1562°F).
  • Überlegene resistance to oxidation und corrosion in severe environments.
  • Ausgezeichnet creep resistance for long-term applications in extreme conditions.
  • Suitable for additive Fertigung techniques like powder-bed fusion und direct energy deposition.
  • Weit verbreitet in gas turbines, Luft- und Raumfahrtund power generation industries.

Now, let’s dive into the most important aspect of any material: its chemische Zusammensetzung und key properties.


Composition and Key Properties of IN939 Powder

Die performance von IN939 powder is directly linked to its chemische Zusammensetzung, which is engineered to deliver exceptional performance in high-temperature und oxidative environments. Each element in the alloy contributes to its Stärke, Korrosionsbeständigkeit, and overall durability.

Chemical Composition of IN939 Powder

ElementProzentsatz (%)Rolle in der Legierung
Nickel (Ni)50-55Forms the primary base of the alloy, providing high-temperature strength and resistance to oxidation.
Chrom (Cr)22-23Enhances oxidation resistance, particularly in high-temperature settings.
Kobalt (Co)17-20Improves Stärke und hardness at elevated temperatures.
Titan (Ti)3.0-4.0Contributes to Ausscheidungshärtung, improving the overall strength and creep resistance.
Aluminium (Al)1.5-2.0Enhances oxidation resistance and supports strength retention at high temperatures.
Wolfram (W)1.0-2.0Adds to the alloy’s creep resistance by reinforcing the crystal structure.
Molybdän (Mo)1.0-2.0Provides additional high-temperature strength and resistance to corrosion.
Niobium (Nb)1,0 maxContributes to Ausscheidungshärtung, increasing the alloy’s strength.
Kohlenstoff (C)0,15 maxIncreases hardness, but must be limited to maintain ductility.
Bor (B)0,006 maxImproves grain boundary strength and aids in creep resistance.
Zirkonium (Zr)0,04 maxEnhances creep resistance by stabilizing the grain boundaries.

Key Properties of IN939 Powder

IN939 powder owes its high-performance characteristics to its carefully balanced composition. Below are some of the key mechanical und thermische Eigenschaften that make it stand out.

EigentumWert/Beschreibung
Dichte8,19 g/cm³
Schmelzbereich1310°C – 1370°C
Zugfestigkeit950 MPa
Streckgrenze650 MPa
Dehnung beim Bruch15-20%
KriechwiderstandExcellent, particularly up to 850°C
HärteTypically 200-230 HB (Brinell Hardness)
WärmeleitfähigkeitLow, which enhances its high-temperature performance.
OxidationsbeständigkeitOutstanding in environments up to 850°C
KorrosionsbeständigkeitExceptional, particularly against oxidative und acidic environments.
SchweißeignungGood, though requires preheat und post-weld heat treatments to avoid cracking.

Advantages of IN939 Powder: Why Choose It?

So why should you seriously consider IN939 powder for your next project? Let’s break down the key advantages that make it a top choice for engineers and manufacturers alike.

1. High-Temperature Performance

If your project involves extreme heat, IN939 powder will keep its cool. This material is designed to retain its mechanische Eigenschaften at temperatures up to 850°C, making it ideal for gas turbines, exhaust systemsund heat shields. Unlike many other alloys, IN939 doesn’t lose its strength or become brittle in such conditions.

2. Excellent Oxidation and Corrosion Resistance

In industries like Luft- und Raumfahrt oder power generation, components are often exposed to oxidative und corrosive environments. Thanks to its high chromium und aluminum content, IN939 powder provides superior oxidation resistance, even at elevated temperatures. This makes it perfect for use in turbine blades und combustors, where failure is not an option.

3. Creep Resistance

When a material is subjected to constant stress at high temperatures, it tends to slowly deform over time—a phenomenon known as creep. IN939 powder is designed with this in mind, offering excellent creep resistance, which is essential for long-term reliability in critical components like turbine discs und seals.

4. Versatile Manufacturing Capabilities

Whether you’re working with additive Fertigung, Pulvermetallurgie, or investment casting, IN939 powder is versatile enough to meet your needs. It’s commonly used in 3D-Druck to create complex, high-performance parts with fine detailing und intricate geometries.


Applications of IN939 Powder: Where It Shines

Given its outstanding properties, IN939 powder is used in some of the most demanding industries around the world. Its ability to maintain strength, resist oxidationund withstand high temperatures makes it a staple in gas turbines, Luft- und Raumfahrtund power generation.

Common Applications of IN939 Powder

IndustrieAnmeldung
Luft- und RaumfahrtTurbinenschaufeln, afterburners, combustor componentsund rotors exposed to high temperatures and oxidative environments.
StromerzeugungTurbine discs, sealsund blades in gas turbines und steam turbines.
AutomobilindustrieKomponenten des Turboladers that require both high strength and resistance to extreme heat.
Öl und GasWerkzeuge für das Bohrloch, valvesund seals exposed to high-pressure, high-temperature environments.
Additive Fertigung3D-gedruckte Teile für Luft- und Raumfahrt, Energieund automotive components where high temperature and strength are essential.

From jet engines zu turbine blades, IN939 powder is trusted by engineers around the globe for Hochleistungsanwendungen that demand superior materials.


Specifications, Sizes, Grades, and Standards for IN939 Powder

Bei der Auswahl IN939 powder for your project, it’s crucial to understand the available specifications, sizesund standards. This ensures you get the right material for the right application, without sacrificing performance.

Specifications for IN939 Powder

SpezifikationEinzelheiten
PartikelgrößeRanges from 15 to 53 microns, depending on the application (e.g., additive Fertigung oder thermal spray).
Morphologie des PulversTypically spherical particles for improved flowability and even deposition.
ASTM-NormenASTM B637 for nickel-based alloys used in Luft- und Raumfahrt und industrial applications.
ISO-NormenISO 15156 for materials used in sour gas environments.
AMS StandardsAMS 5397 covers nickel-chromium-cobalt alloys like IN939 for precision components.
UNS-NummerUNS N07090

Die Wahl des richtigen specification ensures that IN939 powder will meet the exacting requirements of your specific industry oder application.


Suppliers and Pricing of IN939 Powder

Der Preis von IN939 powder can vary considerably based on supplier, particle sizeund volume. While it is generally more expensive than standard materials, its long-term performance often justifies the investment, especially in high-stress und high-temperature applications.

Suppliers and Pricing of IN939 Powder

AnbieterPreisspanne (pro kg)Anmerkungen
Höganäs AB$500 – $700A global leader in metal powders, including IN939 for additive manufacturing and powder metallurgy.
Tischlertechnik$520 – $730Specializes in high-performance alloys, offering custom particle sizes for specific applications.
Oerlikon Metco$510 – $720Provides IN939 powder for thermal spray coatings and 3D printing applications.
Sandvik$550 – $750Offers advanced materials for aerospace and energy sectors, including IN939 powder.
Kennametal$530 – $720Supplier of premium nickel-based alloys, including IN939, for industrial and energy applications.

On average, you can expect prices to range between $500 and $750 per kilogram, depending on the supplier und spezifische Anforderungen.


Comparing the Pros and Cons of IN939 Powder

Before you settle on IN939 powder for your project, it’s essential to consider the Vorteile und Einschränkungen to ensure it’s the right choice for your needs.

Vorteile

VorteilBeschreibung
Hochtemperaturfestigkeit: Retains mechanical properties up to 850°C.Ideal for jet engines, gas turbinesund combustors.
Oxidationsbeständigkeit: Excels in oxidative environments.Perfect for components exposed to hot gases und air at high temperatures.
Kriechwiderstand: Long-term stability under stress.Ensures reliability in critical applications like turbine discs und seals.
Versatile Manufacturing: Compatible with 3D-Druck, thermal sprayund Pulvermetallurgie.Allows for komplexe Geometrien in additive Fertigung.
Korrosionsbeständigkeit: Excels in corrosive environments.Adds longevity to components exposed to acidic oder oxidative environments.

Beschränkungen

BegrenzungBeschreibung
Hohe Kosten: More expensive than many other materials.May not be suitable for budget-sensitive Anwendungen.
Schwierigkeit der Bearbeitung: Requires specialized tools for precision machining.Increases machining time and cost, especially for intricate parts.
Begrenzte Verfügbarkeit: Not always readily available in large quantities.Can lead to longer lead times, especially for custom formulations or large orders.
Oxidation at Very High Temperatures: Oxidation can become an issue above 850°C without coatings.May require protective coatings for applications at extreme temperatures.

FAQs

Still have questions? Below are some answers to common inquiries about IN939 powder.

FrageAntwort
What is IN939 powder used for?It is commonly used in Luft- und Raumfahrt, power generationund oil and gas industries for high-temperature and high-stress parts like turbine blades und seals.
How much does IN939 powder cost?The price typically ranges from $500 to $750 per kilogram, depending on the supplier and specific requirements.
Can IN939 powder be used in 3D printing?Yes, it is widely used in additive Fertigung processes like powder-bed fusion to create high-performance components.
What industries use IN939 powder?It’s used extensively in Luft- und Raumfahrt, power generation, Automobilund oil and gas industries.
Is IN939 powder corrosion-resistant?Yes, IN939 offers excellent Korrosionsbeständigkeit, particularly in oxidative und acidic environments.
What are the main advantages of IN939 powder?IN939 provides high-temperature strength, oxidation resistanceund creep resistance, making it ideal for extreme Umgebungen.
What are the machining challenges of IN939 powder?IN939’s high strength makes it more difficult to machine, often requiring specialized tools und techniques for precision fabrication.
Can IN939 powder handle extreme heat?Yes, IN939 maintains its mechanical properties at temperatures up to 850°C, making it ideal for turbines und combustor components.
What are the limitations of IN939 powder?The main limitations are its high cost und machining difficulty, which may increase production time und Kosten.

Conclusion: Is IN939 Powder Right for Your Project?

If you’re working in an industry that demands high-temperature strength, oxidation resistanceund long-term stability, it should absolutely be on your radar. Its high-performance characteristics make it a top choice in Luft- und Raumfahrt, power generationund energy sectors, where reliability is paramount.

While it may come with a higher price tag and some machining challenges, the long-term benefits of using it—including durability, resistance to extreme environments, and high creep resistance—often make it a cost-effective solution in the long run.

In the end, if your project demands a material that can truly go the extra mile, it is a rock-solid investment that delivers exceptional performance where it matters most.

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