Typical Die Casting Copper/Brass Alloys

Typical Die Casting Copper/Brass Alloys are highly valued for their strength, durability, and excellent thermal conductivity. These alloys are ideal for applications requiring high corrosion resistance, good machinability, and aesthetic appeal, making them popular in industries like automotive, electronics, and decorative hardware.
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When To Choose Copper for Die Casting

Copper is an excellent choice for die casting due to its superior electrical and thermal conductivity, corrosion resistance, and strength. It is ideal for applications requiring high precision, durability, and excellent heat dissipation, such as electrical components, heat exchangers, and industrial equipment. Copper also offers a smooth finish and is highly resistant to wear and tear.
When To Choose Copper for Die Casting

Reason

Explanation

Superior Electrical and Thermal Conductivity

Copper offers the highest thermal and electrical conductivity among die-cast metals, making it ideal for heat exchangers and electrical components.

Corrosion Resistance

Copper is naturally resistant to corrosion, especially in humid and marine environments, ensuring long-lasting durability.

High Strength and Durability

Copper has strong mechanical properties and can withstand heavy wear, making it suitable for high-stress applications.

Excellent Heat Dissipation

Due to its excellent thermal conductivity, copper effectively dissipates heat, making it ideal for cooling systems and electronic devices.

Precision and Smooth Finish

Copper parts can be cast with high precision and smooth surfaces, reducing the need for extensive post-processing.

Wear Resistance

Copper is highly resistant to wear and tear, making it suitable for applications involving friction, such as bearings and electrical connectors.

Typical Casting Copper/Brass Alloys

Typical Casting Copper/Brass Alloys** are widely used in die casting due to their strength, durability, and corrosion resistance. Popular alloys like C87600 (Bronze), C93200 (Bearing Bronze), and C36000 (Free-Cutting Brass) offer versatility for various industrial, automotive, and marine applications.

Copper/Brass Alloys

Aliases

Tensile Strength
(MPa)

Yield Strength
(MPa)

Fatigue Strength
(MPa)

Elongation
(%)

Hardness
(HB)

Density
(g/cm³)

Applications

CuZn37

CW510L (EU), C23000 (US)

350-450

220-300

100-150

25-30%

60-90

8.40-8.60

General-purpose brass, plumbing fittings, hardware

CuZn40

CW507L (EU), C24000 (US)

370-460

230-310

110-160

20-30%

80-100

8.40-8.60

Automotive, electrical components, marine hardware

CuZn10

CW508L (EU), C26000 (US)

330-420

210-280

90-130

25-35%

60-90

8.50-8.70

Electrical parts, connectors, architectural hardware

Brass 360

C36000 (US)

520-690

340-420

150-220

30-40%

70-120

8.40-8.60

Precision machining, electrical connectors, fasteners

Brass 380

C38000 (US), CuZn38 (EU)

420-530

270-350

120-180

15-25%

60-90

8.50-8.70

Electrical components, valves, pumps, mechanical parts

Brass 464

C46400 (US)

450-550

300-380

130-200

20-30%

85-110

8.60-8.80

Marine hardware, fittings, pumps, valves

CuNi10Fe1

CW351H (EU)

300-450

210-290

100-160

15-20%

60-90

8.70-8.90

Marine components, valves, pump parts, heavy-duty fittings

CuNi30Fe1

CW352H (EU)

330-480

220-310

110-170

15-20%

70-100

8.70-8.90

Marine applications, chemical and water industry

C17500

Beryllium Copper (US)

690-1100

450-850

250-350

3-5%

160-200

8.35-8.45

High-strength electrical contacts, connectors, springs

C18200

Beryllium Copper (US)

600-1000

400-800

220-320

4-7%

150-200

8.35-8.45

Aerospace, electrical contacts, high-performance springs

Typical Surface Treatment for Copper Castings

Typical surface treatments for copper castings include electroplating, powder coating, painting, polishing, shot blasting, vibratory finishing, chemical etching, clear coating, and PVD. These processes enhance properties such as corrosion resistance, surface hardness, appearance, and strength, while also improving durability and performance in various industrial applications.

Surface Treatment

Description

Purpose/Benefit

Applications

Electroplating (Nickel, Gold, etc.)

Depositing a metal layer onto the copper surface via electrochemical means.

Improves corrosion resistance, wear resistance, and surface hardness.

Electronics, decorative items, hardware, aerospace, automotive.

Powder Coating

A dry finishing process where a powdered coating is applied and then cured under heat.

Enhances corrosion resistance, improves aesthetics, and provides durable finishes.

Automotive parts, household appliances, outdoor equipment, furniture.

Painting

Application of liquid paints for decorative and protective purposes.

Offers color, increased durability, and corrosion resistance.

Consumer products, automotive, machinery, furniture, and outdoor products.

Polishing

Mechanical or chemical polishing to create a smooth, shiny surface.

Improves surface finish and aesthetic appeal, often used for decorative purposes.

Jewelry, decorative hardware, automotive parts, consumer electronics.

Shot Blasting

High-pressure blasting of abrasive particles onto the surface to clean or texture it.

Improves surface texture, removes casting defects, and enhances paint adhesion.

Metalworking, automotive, aerospace, foundries, construction.

Vibratory Finishing

Using abrasive media in a vibrating machine to smooth surfaces.

Reduces surface roughness and deburrs parts.

Automotive, aerospace, medical device manufacturing, jewelry finishing.

Chemical Etching

Use of chemicals to etch away unwanted material from the surface.

Provides fine surface finishes, often used for engraving or creating textured finishes.

Electronics, signage, jewelry, precision machining, aerospace.

Clear Coating

Application of a transparent coating to preserve the natural finish of copper.

Provides UV and corrosion resistance while maintaining the metallic look.

Automotive, electronics, marine, architectural, jewelry.

PVD Process

Physical Vapor Deposition process that applies thin metallic coatings to the copper surface.

Provides superior wear resistance, hardness, and enhanced aesthetics with metallic finishes.

Electronics, automotive, decorative hardware, medical devices, aerospace.

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