Introduction: The Rise of AlSi9Cu3 Alloy in Industrial Manufacturing
In the rapidly advancing field of industrial manufacturing and metal 3D printing, aluminum-silicon-copper alloy known as AlSi9Cu3 has become a game-changer. This alloy, containing approximately 9% silicon and 3% copper, offers a unique combination of mechanical strength, corrosion resistance, and castability—making it ideal for both traditional die casting and modern additive manufacturing (AM) techniques.
AlSi9Cu3 powder is increasingly used in automotive, aerospace, and consumer electronics industries due to its excellent thermal conductivity, low density, and good wear resistance. For B2B buyers—including wholesale metal powder distributors, 3D printing service providers, and industrial parts manufacturers—sourcing high-quality AlSi9Cu3 powder is essential for optimizing product performance and production efficiency.
Shanghai Truer Technology Co., Ltd, a trusted name in additive manufacturing solutions, offers high-purity AlSi9Cu3 spherical powders produced through advanced PREP (Plasma Rotating Electrode Process) and SEBM (Selective Electron Beam Melting) technologies. With a decade-long legacy in metal powder innovation, the company provides custom solutions for bulk buyers across the globe.
Key Advantages of AlSi9Cu3 Powder:
| Property | Benefit for Industrial Use |
|---|---|
| High Silicon Content (≈9%) | Enhances fluidity and reduces shrinkage in casting |
| Copper Addition (≈3%) | Improves mechanical strength and hardness |
| Excellent Castability | Ideal for complex mold shapes and intricate 3D prints |
| Corrosion Resistance | Suitable for automotive and marine applications |
| Lightweight | Reduces overall component weight in aerospace applications |
| Low Thermal Expansion | Enhances dimensional stability under heat |
Applications of AlSi9Cu3 Powder in Industry
AlSi9Cu3 powder is a favorite among OEMs, contract manufacturers, and 3D printing service providers due to its versatility across multiple sectors. Its properties make it suitable for both selective laser melting (SLM) and electron beam melting (EBM) additive manufacturing technologies.
Automotive Industry
- Engine Components: Cylinder heads, pistons, and manifolds benefit from AlSi9Cu3’s strength-to-weight ratio.
- Transmission Housings: High dimensional accuracy and thermal stability are critical.
- Electric Vehicle Enclosures: Lightweight and corrosion-resistant options for battery protection.
Aerospace and Defense
- Structural Parts: Used in non-load bearing components where weight reduction is key.
- Heat Exchangers: Excellent thermal conductivity for managing heat dissipation.
- Drone Frames: Lightweight and durable for UAV applications.
Electronics and Consumer Goods
- LED Housings: AlSi9Cu3’s conductivity makes it ideal for thermal management.
- Smartphone Casings: Lightweight and corrosion-resistant for high-end devices.
- Camera Components: Precision manufacturing enabled by fine powder granularity.
Additive Manufacturing (3D Printing)
- Rapid Prototyping: Fast turnaround with high mechanical fidelity.
- Custom Tooling: Tailored molds and jigs for industrial applications.
- Low-Volume Production: Cost-effective for specialized component manufacturing.
Industry Use Case Snapshot
| Industry | Application | Benefit of AlSi9Cu3 Powder |
|---|---|---|
| Automotive | Engine blocks, housing | Lightweight, high thermal conductivity |
| Aerospace | UAV frames, brackets | Corrosion resistance, low density |
| Electronics | Heat sinks, LED components | Excellent heat dissipation |
| Additive Mfg. | Prototypes, tooling | High precision, fast production cycles |
Properties and Use Cases of AlSi9Cu3 Powder
B2B buyers looking to scale additive manufacturing operations must understand the technical properties of AlSi9Cu3 powder. Shanghai Truer Technology Co., Ltd supplies spherical metal powders with tight particle size distribution, high sphericity, and minimal impurities—ideal for industrial applications.
Chemical and Physical Properties
| Property | Specification Range |
|---|---|
| Particle Size Distribution | 15 µm – 53 µm (customizable) |
| Shape | Spherical (atomized via PREP) |
| Purity | ≥ 99.5% |
| Flowability | Excellent (>15 s/50g) |
| Apparent Density | 1.2 – 1.5 g/cm³ |
| Oxygen Content | ≤ 0.05% |
Mechanical Properties of Printed Parts
| Property | Value (SLM Printed, Heat Treated) |
|---|---|
| Ultimate Tensile Strength | ~300 MPa |
| Yield Strength | ~200 MPa |
| Elongation | ~3–5% |
| Hardness (HRB) | ~60 |
Typical Use Cases for B2B Buyers
- Contract Manufacturing Firms: Producing small batches of complex parts.
- E-commerce Sellers of 3D Parts: Offering custom aluminum components on-demand.
- OEMs: Integrating AlSi9Cu3 into lightweight structural designs.
- Distributors: Sourcing and supplying AlSi9Cu3 powder to regional B2B clients.
For buyers looking to explore full specifications and request samples, you can visit Shanghai Truer’s products page to view available aluminum alloy powders including AlSi9Cu3.

Top AlSi9Cu3 Powder Suppliers Worldwide
As the demand for high-performance aluminum alloys like AlSi9Cu3 continues to surge across additive manufacturing and die-casting markets, B2B buyers must identify reliable, consistent, and technologically advanced powder suppliers. This is especially critical for industries such as aerospace, automotive, and medical manufacturing, where material quality directly impacts product performance and regulatory compliance.
Below is a curated list of some of the top global suppliers of AlSi9Cu3 powder, selected based on factors such as production technology, powder morphology, customization options, and global distribution networks.
1. Shanghai Truer Technology Co., Ltd (China)
Shanghai Truer stands out as a comprehensive provider of additive manufacturing solutions. Established in 2009, it launched its 3D printing powder business in 2019 and has rapidly grown into a trusted name in the industry. The company offers:
- Advanced PREP and SEBM powder-making technologies
- Strict quality control with high sphericity and low oxygen content
- Custom particle sizing for SLM, EBM, and DED applications
- A wide selection of aluminum, titanium, and nickel-based powders
🌐 Learn more about Shanghai Truer
2. Ecka Granules (Germany)
A longstanding leader in non-ferrous powders, Ecka Granules offers AlSi9Cu3 powders tailored for powder metallurgy and additive manufacturing. Known for high-purity atomized powders and robust quality control, they serve clients across Europe and Asia.
3. TLS Technik GmbH (Germany)
Specializes in high-quality metal powders for 3D printing and coating technologies. TLS offers AlSi9Cu3 powders produced via gas atomization with consistent spherical morphology and high flowability.
4. Höganäs AB (Sweden)
One of the largest producers of metal powders globally, Höganäs serves a wide array of industries. Their AlSi9Cu3 offerings are suitable for laser powder bed fusion and binder jetting.
5. AP&C (Canada, part of GE Additive)
Known for its plasma atomization capabilities, AP&C produces some of the highest quality metal powders available. While focused more on titanium and nickel alloys, they occasionally supply aluminum-based powders like AlSi9Cu3.
Supplier Comparison Table
| Supplier | Technology | Custom Sizing | Sphericity | Global Shipping |
|---|---|---|---|---|
| Shanghai Truer | PREP, SEBM | ✅ | High | ✅ |
| Ecka Granules | Gas Atomization | ✅ | Medium | ✅ |
| TLS Technik | Gas Atomization | ✅ | High | ✅ |
| Höganäs AB | Gas Atomization | Limited | Medium | ✅ |
| AP&C (GE Additive) | Plasma Atomization | Limited | Very High | ✅ |
Why More Buyers Are Choosing Chinese Powder Suppliers
Over the past decade, China has emerged as a global powerhouse in metal additive manufacturing. This is due to significant investments in R&D, automation, and powder production technologies. For B2B buyers looking for reliability, cost-effectiveness, and quality, Chinese suppliers—especially companies like Shanghai Truer—offer substantial advantages.
Key Reasons to Source from China:
- Competitive Pricing: Lower production and labor costs enable attractive pricing for bulk orders.
- Advanced Technology: Use of PREP and SEBM ensures fine powder morphology and purity.
- Customization: Chinese suppliers are more flexible in supporting custom particle sizes and material blends.
- Scalability: Large-scale production capacity to fulfill high-volume orders for global distributors.
- Fast Lead Times: Efficient logistics and in-house manufacturing reduce delivery times.
Advantages of Working with Shanghai Truer
- 🧪 Joint Innovation Centers: Collaborations with top research labs and universities.
- 🏭 In-House Equipment Manufacturing: Vertical integration allows Truer to control both equipment and powder quality.
- 🔄 End-to-End Services: From powder development to 3D printed part production.
- 🧰 Technical Support: Engineering team provides consultation for powder selection and AM process optimization.
📞 Interested in a quote or technical datasheet? Contact Shanghai Truer here

Why Choose Shanghai Truer as Your Trusted Supplier
Shanghai Truer Technology Co., Ltd is not just a powder provider—it’s a strategic partner in your additive manufacturing journey. Whether you’re a distributor, OEM, or contract manufacturer, Truer offers end-to-end support backed by cutting-edge technology and a decade of expertise.
What Sets Shanghai Truer Apart?
| Feature | Benefit to B2B Buyers |
|---|---|
| In-House PREP & SEBM Equipment | Ensures powder purity and consistency |
| Broad Alloy Portfolio | From AlSi9Cu3 to TiAl, CoCrMo, and Ni-based alloys |
| Customization Capabilities | Particle size, surface treatment, and batch sizes |
| Rapid Prototyping Services | Allows customers to test powders before scaling |
| Quality Certifications | ISO 9001 and other global certifications |
Premium AlSi9Cu3 Powder from Shanghai Truer
Shanghai Truer’s AlSi9Cu3 powder is engineered to meet the performance requirements of high-stress, lightweight applications. It offers:
- Spherical morphology for excellent flowability
- Tight particle size distribution (15–53 μm standard)
- Purity above 99.5%
- Low oxygen and moisture content
- Compatibility with most AM platforms (SLM, EBM, DED)
🛒 Explore our Aluminum Alloy Powder page to discover more offerings.
Industries We Serve
- Automotive Tier-1 and Tier-2 suppliers
- Aerospace component manufacturers
- 3D printing service bureaus
- Metal powder distributors and resellers
- Research and development institutions
Client Testimonials
“Shanghai Truer’s powders consistently meet our stringent aerospace quality requirements. Their technical support is second to none.”
— Procurement Manager, European Aerospace Firm
“We’ve seen a 25% improvement in print consistency using Truer’s AlSi9Cu3 powder. Their team is professional and responsive.”
— Head of Additive Manufacturing, Automotive OEM
🔗 Visit our company blog for in-depth articles on 3D printing trends, powder metallurgy, and AM applications.
How to Order Wholesale AlSi9Cu3 Powder from Shanghai Truer
For B2B buyers, especially those managing procurement for large-scale manufacturing, understanding the ordering process is essential to ensure smooth logistics, quality assurance, and timely delivery. Shanghai Truer Technology Co., Ltd simplifies the wholesale process with a transparent, efficient, and fully customizable approach tailored to global clients.
Here’s a step-by-step guide on how to source AlSi9Cu3 powder in bulk directly from Shanghai Truer.
Step 1: Define Your Requirements
Before placing an order, it’s important to clearly outline your technical and commercial requirements. This helps Truer’s team tailor the product and service accordingly.
✅ Things to specify:
- Desired particle size range (e.g., 15–53 μm for SLM, 45–105 μm for DED)
- Required purity level (typically ≥99.5% for AlSi9Cu3)
- Quantity (MOQ typically starts at 10 kg for trial, 100 kg+ for wholesale)
- Packaging preferences (vacuum-sealed, nitrogen-filled, etc.)
- Certificates needed (COA, SDS, ISO compliance)
Step 2: Request a Quote and Technical Datasheet
B2B buyers can contact the Truer sales team directly through the website or email to receive:
- Technical datasheets with chemical and physical specifications
- Custom quotes based on quantity and shipping destination
- Sample availability for material testing
- Lead time and shipping options
Step 3: Order Confirmation and Payment
Once the quote is approved, the commercial team at Shanghai Truer will issue a proforma invoice. Accepted payment methods include:
- Bank Transfer (T/T)
- Letter of Credit (L/C) for larger orders
- PayPal or credit card (for sample orders)
An estimated lead time will be confirmed based on the order size.
Step 4: Quality Control and Packaging
Truer conducts a full QC inspection before shipment, including:
- Particle size analysis (via laser diffraction)
- Flowability and apparent density tests
- Oxygen and moisture content tests
- Visual inspection for morphology and contamination
Packaging is done in sealed aluminum foil bags or nitrogen-filled bottles, depending on client requirements. Each package is labeled with batch number, production date, and specifications.
Step 5: Shipping and Delivery
Truer works with global logistics partners to offer flexible delivery options:
- Air Freight: Fast delivery (3–7 days), ideal for urgent orders
- Sea Freight: Cost-effective for large bulk orders
- Express Courier: Available for test samples and small volumes
All shipments include tracking and full export documentation to ensure hassle-free customs clearance.
Step 6: Post-Sales Support
Shanghai Truer provides continuous technical support, including:
- Application guidance for AM machines
- Troubleshooting printing issues
- Powder reuse consultation
- Updates on new powder grades
📦 Need help with order planning or logistics? Visit our product catalog to get started.

FAQs: Common Questions About Buying Wholesale AlSi9Cu3 Powder
1. What is the minimum order quantity (MOQ) for AlSi9Cu3 powder?
For trial purposes, Shanghai Truer offers MOQs as low as 10 kg. For wholesale orders, the MOQ typically starts at 100 kg.
2. Can I request a custom particle size range?
Yes. Truer supports customization of particle size ranges depending on your additive manufacturing process (SLM, EBM, DED, etc.).
3. What is the lead time for bulk orders?
Lead times vary based on order size and customization. For standard in-stock powders, the lead time is 5–7 working days. Custom orders may take 2–3 weeks.
4. Is Truer’s AlSi9Cu3 powder compatible with major 3D printers?
Absolutely. The powder is optimized for use with EOS, Renishaw, SLM Solutions, Concept Laser, and other leading AM platforms.
5. Do you provide technical support after the sale?
Yes. Truer’s engineering team offers ongoing support for powder handling, print parameter optimization, and post-processing.
6. How is the powder packaged for international shipping?
Powders are packed in vacuum-sealed or nitrogen-filled containers and placed in robust export cartons or drums, depending on the volume.
7. Where can I learn more about Truer’s additive manufacturing solutions?
You can explore our full range of solutions on our official website.
By partnering with Shanghai Truer Technology Co., Ltd, B2B buyers gain more than just a powder supplier—they gain a trusted ally in the additive manufacturing ecosystem. With advanced powder-making technologies, tailored services, and global delivery capabilities, Truer is positioned to support your production needs at every stage.
🔗 Ready to place your first order or request a consultation? Contact us today and take your manufacturing to the next level.
🔍 Want to stay updated on the latest trends in 3D printing materials and technologies? Check out our AM industry blog for expert insights and news.




