IN939 Powder: Comprehensive Insights into This High-Performance Alloy

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Inhoudsopgave

Welcome to the comprehensive guide on IN939 powder, one of the most robust en high-performance superalloys you’ll encounter in the world of advanced manufacturing en 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 samenstelling, properties, applications, En much more about IN939 powder, ensuring you have all the information you need to make weloverwogen beslissingen about whether this nickel-based alloy is right for your project.

Let’s get started!


Overview: What is IN939 Powder?

IN939 powder is een Superlegering op nikkelbasis designed specifically for applications that demand high-temperature strength, oxidation resistance, En 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 additieve productie en poeder-Metallurgie, where it’s used to create components that must perform in high-pressure en high-temperature environments—such as turbine blades, combustors, En seals.

Key Features of IN939 Powder:

  • High strength retention at temperatures up to 850°C (1562°F).
  • Superieur resistance to oxidation en corrosion in severe environments.
  • Uitstekend creep resistance for long-term applications in extreme conditions.
  • Suitable for additieve productie techniques like powder-bed fusion en direct energy deposition.
  • Op grote schaal gebruikt in gas turbines, ruimtevaart, En power generation industries.

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


Composition and Key Properties of IN939 Powder

De performance van IN939 powder is directly linked to its chemische samenstelling, which is engineered to deliver exceptional performance in high-temperature en oxidative environments. Each element in the alloy contributes to its sterkte, corrosiebestendigheid, and overall durability.

Chemical Composition of IN939 Powder

ElementPercentage (%)Rol in de legering
Nikkel (Ni)50-55Forms the primary base of the alloy, providing high-temperature strength and resistance to oxidation.
Chroom (Cr)22-23Enhances oxidation resistance, particularly in high-temperature settings.
Kobalt (Co)17-20Improves sterkte en hardness at elevated temperatures.
Titanium (Ti)3.0-4.0Contributes to precipitatieharding, improving the overall strength and creep resistance.
Aluminium (Al)1.5-2.0Enhances oxidation resistance and supports strength retention at high temperatures.
Wolfraam (W)1.0-2.0Adds to the alloy’s creep resistance by reinforcing the crystal structure.
Molybdeen (Mo)1.0-2.0Provides additional high-temperature strength and resistance to corrosion.
Niobium (Nb)1,0 maxContributes to precipitatieharding, increasing the alloy’s strength.
Koolstof (C)Maximaal 0,15Increases hardness, but must be limited to maintain ductility.
Borium (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 en thermische eigenschappen that make it stand out.

EigendomWaarde/Omschrijving
Dikte8,19 g/cm³
Smeltbereik1310°C – 1370°C
Treksterkte950 MPa
Opbrengststerkte650 MPa
Verlenging bij breuk15-20%
KruipweerstandExcellent, particularly up to 850°C
HardheidTypically 200-230 HB (Brinell Hardness)
WarmtegeleidingLow, which enhances its high-temperature performance.
Oxidatie weerstandOutstanding in environments up to 850°C
CorrosieweerstandExceptional, particularly against oxidative en acidic environments.
LasbaarheidGood, though requires preheat en 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 eigenschappen at temperatures up to 850°C, making it ideal for gas turbines, exhaust systems, En 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 ruimtevaart of power generation, components are often exposed to oxidative en corrosive environments. Thanks to its high chromium en aluminum content, IN939 powder provides superior oxidation resistance, even at elevated temperatures. This makes it perfect for use in turbine blades en 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 en seals.

4. Versatile Manufacturing Capabilities

Whether you’re working with additieve productie, poeder-Metallurgie, or investment casting, IN939 powder is versatile enough to meet your needs. It’s commonly used in 3d printen to create complex, high-performance parts with fine detailing en 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 oxidation, En withstand high temperatures makes it a staple in gas turbines, ruimtevaart, En power generation.

Common Applications of IN939 Powder

IndustrieSollicitatie
Lucht- en ruimtevaartTurbinebladen, afterburners, combustor components, En rotors exposed to high temperatures and oxidative environments.
StroomopwekkingTurbine discs, seals, En blades in gas turbines en steam turbines.
AutomobielTurbocompressoronderdelen that require both high strength and resistance to extreme heat.
Olie en gasGereedschap voor boorgat, valves, En seals exposed to high-pressure, high-temperature environments.
Additieve productie3D printed parts voor ruimtevaart, energie, En automotive components where high temperature and strength are essential.

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


Specifications, Sizes, Grades, and Standards for IN939 Powder

Bij het kiezen van IN939 powder for your project, it’s crucial to understand the available specifications, sizes, En standards. This ensures you get the right material for the right application, without sacrificing performance.

Specifications for IN939 Powder

SpecificatieDetails
DeeltjesgrootteRanges from 15 to 53 microns, depending on the application (e.g., additieve productie of thermal spray).
Poeder morfologieTypically spherical particles for improved flowability and even deposition.
ASTM-normenASTM B637 for nickel-based alloys used in ruimtevaart en 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

De juiste keuze maken specification ensures that IN939 powder will meet the exacting requirements of your specific industry of application.


Suppliers and Pricing of IN939 Powder

De prijs van IN939 powder can vary considerably based on supplier, particle size, En volume. While it is generally more expensive than standard materials, its long-term performance often justifies the investment, especially in high-stress en high-temperature applications.

Suppliers and Pricing of IN939 Powder

LeverancierPrijsklasse (per kg)Opmerkingen
Höganäs AB$500 – $700A global leader in metal powders, including IN939 for additive manufacturing and powder metallurgy.
Timmerman technologie$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 en specifieke eisen.


Comparing the Pros and Cons of IN939 Powder

Before you settle on IN939 powder for your project, it’s essential to consider the voordelen en beperkingen to ensure it’s the right choice for your needs.

Voordelen

VoordeelBeschrijving
Sterkte bij hoge temperatuur: Retains mechanical properties up to 850°C.Ideal for jet engines, gas turbines, En combustors.
Oxidatie weerstand: Excels in oxidative environments.Perfect for components exposed to hot gases en air at high temperatures.
Kruipweerstand: Long-term stability under stress.Ensures reliability in critical applications like turbine discs en seals.
Versatile Manufacturing: Compatible with 3d printen, thermal spray, En poeder-Metallurgie.Allows for complexe geometrieën in additieve productie.
Corrosieweerstand: Excels in corrosive environments.Adds longevity to components exposed to acidic of oxidative environments.

Beperkingen

BeperkingBeschrijving
Hoge kosten: More expensive than many other materials.May not be suitable for budget-sensitive toepassingen.
Moeilijkheid bij machinale bewerking: Requires specialized tools for precision machining.Increases machining time and cost, especially for intricate parts.
Beperkt beschikbaar: 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.

Veelgestelde vragen

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

VraagAntwoord
What is IN939 powder used for?It is commonly used in ruimtevaart, power generation, En oil and gas industries for high-temperature and high-stress parts like turbine blades en 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 additieve productie processes like powder-bed fusion to create high-performance components.
What industries use IN939 powder?It’s used extensively in ruimtevaart, power generation, automobiel, En oil and gas industries.
Is IN939 powder corrosion-resistant?Yes, IN939 offers excellent corrosiebestendigheid, particularly in oxidative en acidic environments.
What are the main advantages of IN939 powder?IN939 provides high-temperature strength, oxidation resistance, En creep resistance, making it ideal for extreme omgevingen.
What are the machining challenges of IN939 powder?IN939’s high strength makes it more difficult to machine, often requiring specialized tools en 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 en combustor components.
What are the limitations of IN939 powder?The main limitations are its high cost en machining difficulty, which may increase production time en kosten.

Conclusion: Is IN939 Powder Right for Your Project?

If you’re working in an industry that demands high-temperature strength, oxidation resistance, En long-term stability, it should absolutely be on your radar. Its high-performance characteristics make it a top choice in ruimtevaart, power generation, En 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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