APT-QCr1

● High strength

● Good electrical conductivity

● Precise shape formation

● Decent heat resistance

● Fast prototyping

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QCr1 Chromium Bronze for 3D Printing

AptPrototype proudly offers QCr1 Chromium Bronze, a high-performance copper-based alloy optimized for precision metal 3D printing applications. Known for its excellent electrical conductivity, high strength, outstanding thermal stability, and good wear resistance, QCr1 is widely used in industries such as electrical engineering, aerospace, automotive, and industrial machinery.

Powder Grade QCr1 (Chromium Bronze)
Particle Size Distribution 10 - 30 μm, 20 - 60 μm, 45 - 90 μm, 70 - 150 μm
Flowability (s/50g) ≤35s
Bulk Density (g/cm³) ≥4.8 g/cm³
Sphericity ≥0.92
Oxygen Content (ppm) ≤300 ppm

Mechanical Properties (After Heat Treatment)

Property	Value
Tensile Strength	350 - 450 MPa
Yield Strength	250 - 350 MPa
Elongation	10 - 20%
Hardness (HB)	120 - 180

Material Advantages

High Electrical Conductivity

QCr1 has excellent electrical conductivity, making it highly suitable for electrical contacts, busbars, and other electrical components where low electrical resistance is crucial.

High Strength and Thermal Stability

It offers high strength and good thermal stability, enabling it to maintain its mechanical properties even at elevated temperatures. This is ideal for aerospace and automotive applications where components are often exposed to heat.

Good Wear Resistance

QCr1 provides good anti-friction properties, ensuring long service life for components subjected to sliding and abrasion, such as gears and bearings in industrial machinery.

Optimized for 3D Printing

With a high sphericity and precisely controlled particle size distribution, QCr1 ensures smooth powder flowability and accurate layer deposition during the 3D printing process.

Good Machinability

Although it has high strength, QCr1 still has relatively good machinability compared to some other high-strength copper alloys, reducing the complexity and time of post-processing operations.

Applications and Use Cases

Industry Application

Electrical Engineering Electrical contacts, connectors, busbars, and circuit breakers

Aerospace High-temperature structural components, heat exchangers, and electrical wiring components

Automotive Engine components, electrical connectors, and components in electric vehicle charging systems

Industrial Machinery Gears, bearings, shafts, and other high-stress and wear-resistant parts

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Why Choose AptPrototype?

Premium Quality Powders

Produced under strict quality controls to ensure optimal printing performance and mechanical properties.

Customizable Solutions

Various particle size distributions and material properties tailored for different 3D printing applications.

Comprehensive Support

From material consultation to post-processing services, ensuring seamless production and high-quality results.

Additional Information

Surface Treatments

Enhance the performance of QCr1 components with AptPrototype’s advanced post-processing solutions:

• Precision Polishing & Blasting for improved surface finish.

• Heat Treatments to further enhance mechanical properties.

• Coatings & Plating for increased wear and corrosion resistance.

Technical Notes

• Compatible with SLM, DMLS, and other metal 3D printing technologies.

• Customizable powder specifications to meet specific application needs.

FAQ

What makes QCr1 ideal for electrical engineering applications?

Its high electrical conductivity and good mechanical strength make it an excellent choice for electrical components where reliable electrical performance and durability are required.
What are the available particle size distributions?

We offer 10 - 30 μm, 20 - 60 μm, 45 - 90 μm, and 70 - 150 μm, compatible with different metal 3D printing systems.
How does QCr1 compare to other copper alloys?

Compared to many other copper alloys, QCr1 has a better balance of high electrical conductivity, strength, and thermal stability, making it more suitable for applications where multiple properties are crucial.

Get Started with AptPrototype

Explore the possibilities of QCr1 Chromium Bronze for your next 3D printing project. Upload your design today to receive a personalized quote and expert advice!

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