CuZn40

CuZn40, also known as C26000 or Brass Alloy 40, is a brass alloy with approximately 40% zinc content, offering a combination of strength, good machinability, and excellent corrosion resistance. This alloy is widely used in die casting for components that require high durability and strength and good formability for intricate designs. CuZn40 is ideal for use in automotive, plumbing, electrical, and industrial equipment industries, where performance and long-term reliability are crucial.

At Neway, we provide high-quality CuZn40 die casting solutions, delivering precision-engineered parts with excellent mechanical properties and corrosion resistance. Our advanced CNC machining, tooling, and surface finishing services ensure high-quality results.

Key Characteristics of CuZn40

CuZn40 offers a unique combination of mechanical strength and excellent corrosion resistance, making it ideal for applications where both properties are required. The alloy has good casting fluidity, making it suitable for intricate and complex die cast parts, with excellent dimensional stability.

The combination of copper and zinc provides CuZn40 with a good strength and corrosion resistance balance. Its excellent fluidity ensures precise casting, particularly in parts with fine details and thin walls.

Chemical Composition of CuZn40

The copper content in CuZn40 gives the alloy excellent thermal and electrical conductivity, while the zinc content contributes to its strength and ease of casting.

Mechanical Properties of CuZn40 Brass Alloy

CuZn40 is known for its excellent mechanical properties, making it suitable for components that require both high strength and resistance to mechanical stress.

These properties make CuZn40 an ideal choice for parts exposed to mechanical stress, vibration, or wear, such as fittings, valves, and connectors.

Benefits of Using CuZn40 in Die Casting

• Good Strength and Durability: CuZn40 offers high tensile strength and yield strength, making it suitable for parts exposed to mechanical stress and wear.

• Corrosion Resistance: The alloy’s excellent resistance to corrosion makes it ideal for applications exposed to moisture, chemicals, or outdoor environments.

• Excellent Machinability: CuZn40 is easy to machine, providing high-quality finishes and ensuring smooth cuts, which is ideal for precision parts.

• Good Thermal and Electrical Conductivity: CuZn40 offers good thermal and electrical conductivity, making it suitable for electrical components.

• Dimensional Stability: CuZn40 maintains dimensional accuracy during cooling, making it ideal for precision die casting applications.

Typical Applications of CuZn40 Die Cast Parts

CuZn40 is used in various industries, particularly in applications requiring a combination of strength, machinability, and corrosion resistance. Some typical uses include:

• Automotive: Engine components, transmission parts, and structural brackets

• Plumbing: Fittings, faucets, valves, and plumbing connectors

• Electrical: Electrical connectors, terminals, and housings for electrical devices

• Industrial Equipment: Pump components, valve bodies, and high-stress machinery parts

• Consumer Goods: Jewelry, decorative hardware, and musical instruments

CuZn40’s strength and resistance to corrosion make it ideal for both functional and aesthetic parts.

CNC Machining Considerations for CuZn40

CuZn40 is easy to machine, especially when compared to other copper alloys. However, its hardness requires careful selection of tooling to minimize tool wear and ensure high-quality finishes.

Machining Recommendations:

• Tooling: Use high-speed steel (HSS) or carbide tools. TiAlN-coated tools can help reduce wear due to the alloy’s hardness.

• Cutting Speed: Milling: 250–500 m/min; drilling: 100–150 m/min

• Feed Rate: 0.05–0.15 mm/rev, depending on the part complexity and tool size

• Coolants: Use water-based or synthetic coolants to prevent overheating and ensure smooth cuts.

• Surface Finish: Ra ≤ 1.6 µm achievable for precision finishes.

• Tolerance: ±0.03 mm achievable for critical features.

Neway’s CNC machining ensures precise, high-quality surface finishes for CuZn40 die-cast parts.

Surface Treatments for CuZn40 Parts

To further enhance the performance and appearance of CuZn40, several surface treatments can be applied:

• Anodizing: Increases corrosion resistance and provides decorative finishes.

• Powder Coating: Adds a layer of protection and custom color options, ideal for parts exposed to harsh environments.

• Painting: Provides UV and chemical resistance for outdoor applications.

• Tumbling: Removes burrs and smooths surfaces before further finishing or coating.

All treatments are carefully tested to ensure optimal adhesion, durability, and corrosion resistance.

Why Choose Neway for CuZn40 Die Casting?

Neway offers comprehensive CuZn40 die casting solutions, from design for manufacturability to precision CNC machining and mass production. We specialize in producing high-strength, durable, and precision-engineered components that meet the highest quality and performance standards.

FAQs:

1. What makes CuZn40 brass alloy ideal for die casting?

2. Can CuZn40 die-cast parts be anodized or powder-coated for enhanced protection?

3. What industries typically use CuZn40 for precision die casting?

4. How does CuZn40 compare to other brass alloys regarding corrosion resistance and strength?

5. What are the recommended machining techniques for CuZn40 die cast parts?