300 mesh brazing powder CuP8 copper welding powder bronze alloy powder has stable quality

Product Description

Performance of 300 Mesh Brazing Powder (CuP8 Copper Welding Powder / Bronze Alloy Powder)

1. General Characteristics

• Alloy Type: CuP8 (Phosphor Bronze)

• Mesh Size: 300 mesh (fine powder for uniform application)

• Composition: ~92% Cu, ~8% P (may include small amounts of Ag or Sn for enhanced properties)

• Brazing Temperature: ~710–800°C (varies based on joint configuration)

• Melting Range: ~710–750°C (eutectic reaction ensures good flow)

2. Key Performance Advantages

✅ Excellent Wettability & Flow – Spreads smoothly on copper and copper alloys, ensuring strong joints.
✅ Self-Fluxing Property – Phosphorus (P) acts as a deoxidizer, reducing the need for external flux in many applications.
✅ High Joint Strength – Forms durable, leak-proof joints with good mechanical properties.
✅ Corrosion Resistance – Suitable for plumbing, refrigeration, and electrical applications.
✅ Fine Mesh (300) – Ensures precise application, ideal for automated brazing and delicate work.

3. Typical Applications

• HVAC & Refrigeration: Pipe joints, compressor connections.

• Electrical Components: Busbars, terminals, circuit breakers.

• Plumbing & Automotive: Copper tubing, heat exchangers.

• Jewelry & Artwork: Bronze brazing with minimal cleanup.

4. Quality Stability Factors

✔ Consistent Particle Size Distribution – 300 mesh ensures uniform melting.
✔ Low Oxide Content – Minimizes porosity and weak joints.
✔ Batch-to-Batch Consistency – Reliable for industrial use.
✔ Compliance with Standards: Meets AWS A5.8 (if applicable) and industry specs.

5. Comparison with Alternatives

Excellent flowability and wettability braze powder joining metal components

【 Main Application 】
*Welding between metal parts
*Diamond brazing

【 Product advantage 】
*One of the earliest research and production units of brazing alloy powder in China, with a long history and mature technology, customers all over the country
*For different applications, different atomization technology is used to ensure the best utilization value and cost performance of powder.
*Good sphericity of powder, controllable particle size composition.
*According to different requirements, some powder oxygen content can be controlled below 200ppm.
【 Featured Products 】
*Nickel base filler metal grades: BNi-2, BNi-7

Introduction: BNi-2 filler metal is the most widely used nickel base high temperature filler metal. braze
In the process, it has good wettability, and the joint has excellent oxidation resistance and corrosion resistance
Performance. Suitable for brazing stainless steel, heat-resistant steel and superalloy working at high temperature
Parts. BNi-7 has the lowest melting temperature among nickel-based brazing metals, 14% Cr element
At the same time, good heat resistance and corrosion resistance of the filler metal were ensured. In the brazing process, BNi-7
The filler metal has excellent fluidity and can flow into close-contact joints.

 Copper base filler metal containing titanium grade: BCuSnTi

Introduction: CuSnTi filler metal is mainly used in brazing diamond tools. Ti is a strong carbide active element and is also high
The strength of the connection element can generate TiC on the diamond surface as an intermediate layer, improve the diamond surface wettability, to improve
Combine strength for purpose.
 Silver base filler metal grade: BAgCu28

Introduction: BAgCu28 filler metal is a kind of eutectic alloy filler metal, alloy melting point
780℃, brazing process has good wettability, strong joint filling ability, and can
Enough to form high strength, high conductivity and corrosion resistance of brazing joints, widely used in electricity
Device welding, can also be used for brazing low carbon steel, stainless steel, superalloy, copper and
Copper alloy, Var alloy and refractory alloy, etc.

Exhibition & Partner

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Guangzhou Zoli Technology Co., Ltd. specializes in the development and production of high-performance metallic and non-metallic materials, as well as cutting-edge nanotechnology solutions for precision grinding and material processing. With a strong foundation in innovative grinding and milling technologies, we have established ourselves as a leader in the field of precision particle size reduction and material processing.

Zoli Currently operates two state-of-the-art R&D and manufacturing facilities located in Guangzhou, employing over 60 skilled professionals and covering a total production area of more than 6,000 square meters. Our product portfolio includes advanced milling equipment designed for applications in materials science, pharmaceuticals, ceramics, metallurgy, and nanotechnology. They are widely utilized across a diverse range of industries, including renewable energy, telecommunications, consumer electronics, and biomedical devices.

At our core, we are committed to delivering high-performance, reliable, and innovative milling solutions that meet the evolving needs of our customers. By combining superior engineering with a customer-centric approach, we strive to build long-term partnerships and contribute to the advancement of material science and technology worldwide.