Sinter-Hardening Alloy Powder

Sinter-hardening alloy powder is a groundbreaking material in the realm of metallurgy and manufacturing. It offers unique properties that enhance the strength, durability, and performance of metal parts. In this comprehensive guide, we’ll delve into everything you need to know about sinter-hardening alloy powder, from its composition and characteristics to its applications and advantages.

Overview of Sinter-Hardening Alloy Powder

Sinter-hardening alloy powder is used primarily in powder metallurgy to produce high-strength components. The sintering process involves compacting and heating metal powders below their melting point to form a solid mass. The addition of alloying elements allows these powders to harden during cooling, eliminating the need for secondary heat treatment.

Key Details

• Composition: Varies with the type of alloy, but common elements include iron, nickel, copper, molybdenum, and carbon.
• Properties: High strength, wear resistance, and dimensional stability.
• Applications: Automotive parts, machinery components, gears, and bearings.

Types and Composition of Sinter-Hardening Alloy Powder

Different types of sinter-hardening alloy powders have distinct compositions, which influence their properties and applications. Here, we list some specific models and their characteristics.

Model	Composition	Properties	Applications
SH-100	Iron, 4% Nickel, 2% Copper, 1% Molybdenum	High tensile strength, moderate hardness	Automotive gears, cams
SH-200	Iron, 2% Nickel, 1.5% Copper, 1% Carbon	Excellent wear resistance, high hardness	Bearing components, pump gears
SH-300	Iron, 1% Molybdenum, 0.8% Carbon	High impact strength, good machinability	Structural parts, machine fittings
SH-400	Iron, 1.5% Copper, 1% Carbon	Superior dimensional stability, high strength	Precision gears, sprockets
SH-500	Iron, 2% Nickel, 1% Copper, 1.2% Carbon	High hardness, excellent fatigue resistance	Engine parts, heavy-duty machinery
SH-600	Iron, 0.5% Molybdenum, 0.8% Carbon	Good ductility, high strength	Mechanical seals, valve seats
SH-700	Iron, 1% Nickel, 1.5% Copper	Moderate hardness, good wear resistance	Gearboxes, differential gears
SH-800	Iron, 3% Nickel, 1% Copper, 0.8% Carbon	Very high tensile strength, good ductility	Crankshafts, connecting rods
SH-900	Iron, 0.8% Molybdenum, 1% Carbon	Excellent toughness, high wear resistance	Cutting tools, wear plates
SH-1000	Iron, 1% Nickel, 1% Copper, 1% Carbon	Balanced hardness and strength	Automotive parts, industrial gears

Characteristics of Sinter-Hardening Alloy Powder

Physical Properties

Sinter-hardening alloy powders are renowned for their high strength and hardness, which are achieved through the alloying process and the subsequent sintering. They exhibit excellent wear resistance and maintain dimensional stability under stress, making them ideal for high-precision applications.

Mechanical Properties

These powders offer superior mechanical properties, such as tensile strength, impact resistance, and fatigue resistance. The alloying elements like nickel, copper, and molybdenum enhance these properties by forming hard phases within the metal matrix.

Thermal Properties

The thermal stability of sinter-hardening alloy powders allows them to maintain their mechanical properties at elevated temperatures. This makes them suitable for use in engine components and other high-temperature applications.

Chemical Properties

The alloy powders are resistant to oxidation and corrosion due to the presence of elements like nickel and molybdenum. This enhances their longevity and reliability in harsh environments.

Applications of Sinter-Hardening Alloy Powder

Sinter-hardening alloy powders find applications across various industries due to their versatile properties. Here are some common uses:

Application	Description
Automotive Industry	Used in gears, cams, crankshafts, and engine components due to high strength and wear resistance.
Machinery Components	Ideal for producing bearings, bushings, and structural parts that require durability and precision.
Aerospace Industry	Utilized in components that need to withstand high stress and thermal conditions.
Industrial Equipment	Employed in heavy-duty machinery parts, such as gears and sprockets, for enhanced performance.
Tooling	Suitable for cutting tools and wear plates, thanks to their toughness and wear resistance.
Energy Sector	Used in mechanical seals and valve seats, where high strength and corrosion resistance are crucial.

Specifications, Sizes, Grades, and Standards

Different sinter-hardening alloy powders come with various specifications to suit specific applications. Here’s a detailed look at the typical specifications:

Specification	Details
Particle Size	Ranges from 10 to 100 micrometers, depending on the application.
Density	Typically between 6.8 to 7.4 g/cm³ after sintering.
Grade	Defined by the alloy composition and intended use (e.g., SH-100, SH-200).
Standards	Comply with international standards such as ASTM B783, MPIF 35.

Suppliers and Pricing Details

Pricing for sinter-hardening alloy powders varies based on composition, quantity, and supplier. Here are some key suppliers and their pricing details:

Supplier	Model	Price per kg	Minimum Order Quantity
Supplier A	SH-100	$15	100 kg
Supplier B	SH-200	$20	50 kg
Supplier C	SH-300	$18	75 kg
Supplier D	SH-400	$22	100 kg
Supplier E	SH-500	$25	50 kg
Supplier F	SH-600	$19	80 kg
Supplier G	SH-700	$21	100 kg
Supplier H	SH-800	$23	50 kg
Supplier I	SH-900	$24	60 kg
Supplier J	SH-1000	$26	100 kg

Advantages and Limitations of Sinter-Hardening Alloy Powder

Advantages

• High Strength and Hardness: Achieved through alloying and sintering processes, providing durable and reliable components.
• Wear Resistance: Excellent for applications requiring high durability.
• Dimensional Stability: Maintains shape and size under stress, ideal for precision parts.
• Thermal Stability: Suitable for high-temperature applications.
• Corrosion Resistance: Longevity in harsh environments due to alloying elements.

Limitations

• Cost: Higher compared to traditional metal powders due to complex alloying and sintering processes.
• Processing Complexity: Requires precise control during manufacturing to achieve desired properties.
• Limited Suppliers: Fewer manufacturers produce these specialized powders, impacting availability and lead times.

Comparison of Sinter-Hardening Alloy Powder Models

Let’s compare different models of sinter-hardening alloy powders to help you choose the right one for your application.

Model	Strength	Hardness	Wear Resistance	Thermal Stability	Applications
SH-100	High	Moderate	Good	Good	Automotive gears, cams
SH-200	Moderate	High	Excellent	Moderate	Bearing components, pump gears
SH-300	High	Moderate	Good	Excellent	Structural parts, fittings
SH-400	High	High	Good	Moderate	Precision gears, sprockets
SH-500	Very High	High	Excellent	High	Engine parts, machinery
SH-600	Moderate	High	Good	Excellent	Mechanical seals, valve seats
SH-700	High	Moderate	Good	Good	Gearboxes, differential gears
SH-800	Very High	High	Excellent	High	Crankshafts, connecting rods
SH-900	High	High	Excellent	Moderate	Cutting tools, wear plates
SH-1000	High	High	Good	High	Automotive parts, gears

FAQ

Question	Answer
What is sinter-hardening alloy powder?	It is a type of metal powder that hardens during the sintering process, eliminating the need for secondary heat treatment.
What are the main benefits of using sinter-hardening alloy powder?	High strength, wear resistance, and dimensional stability, making it ideal for high-performance applications.
How does the composition affect the properties of the powder?	Different alloying elements like nickel, copper, and molybdenum enhance various properties such as strength, hardness, and corrosion resistance.
What are common applications of sinter-hardening alloy powders?	Automotive parts, machinery components, gears, bearings, and high-temperature applications.
Are there any limitations to using sinter-hardening alloy powders?	Higher cost and processing complexity compared to traditional metal powders, along with limited suppliers.
How do I choose the right sinter-hardening alloy powder for my application?	Consider the specific properties required for your application, such as strength, hardness, and thermal stability, and compare different models accordingly.

Conclusion

Sinter-hardening alloy powder represents a significant advancement in materials science, offering superior mechanical properties and performance. Whether you’re in the automotive industry, machinery manufacturing, or any other field that demands high-strength, wear-resistant components, understanding the various types, compositions, and applications of these powders is crucial. This guide provides a comprehensive overview, helping you make informed decisions for your specific needs. With the right choice of sinter-hardening alloy powder, you can enhance the quality and durability of your products, ensuring they meet the highest standards of performance and reliability.

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