CuZn40 Copper

Grade Name

• Grade Name: CuZn40

• International Standard: EN 12164 CW509L

• Other Names: 60/40 Brass, C28000 (American Standard), CZ108 (British Standard)

Product Features

• Excellent Hot and Cold Working Properties: Suitable for both hot and cold working, easy to form.

• Good Corrosion Resistance: Performs well in general environments.

• Moderate Strength: Offers good mechanical strength and ductility.

• Good Electrical and Thermal Conductivity: Suitable for electrical and heat exchange applications.

• Wide Applications: Used in precision parts, fittings, decorative items, etc.

Common Product Forms and Dimensions

Product Form	Dimensions	Remarks
Rods	Ø5mm – Ø200mm	Round, hexagonal, square rods
Plates	Thickness: 0.5mm – 50mm	Width: 100mm – 600mm
Tubes	Outer Diameter: Ø6mm – Ø150mm	Wall Thickness: 0.5mm – 10mm
Wires	Ø0.1mm – Ø10mm	Coiled or straight
Forgings	Customized as per customer requirements	Suitable for complex parts

CuZn40 Chemical Composition

Element	Content (%)	Remarks
Cu	58.0 – 63.0	Main component
Zn	Balance	Main alloying element
Pb	≤0.3	Impurity
Fe	≤0.3	Impurity
Ni	≤0.5	Impurity
Sn	≤0.3	Impurity
Others	≤0.2	Impurity

Physical Properties

Property	Value	Remarks
Density	8.5 g/cm³	–
Melting Point	900 – 905°C	–
Thermal Conductivity	120 W/(m·K)	20°C
Electrical Conductivity	28% IACS	20°C
Thermal Expansion Coefficient	20.2 × 10⁻⁶ /K	20-300°C
Specific Heat Capacity	0.38 J/(g·K)	20°C

Mechanical Properties

Property	Value	Remarks
Tensile Strength	350 – 500 MPa	–
Yield Strength	120 – 200 MPa	–
Elongation	20 – 35%	–
Hardness	70 – 110 HB	–
Elastic Modulus	100 – 110 GPa	–

Core Advantages

• Excellent Hot and Cold Working Properties: Suitable for both hot and cold working, easy to form.

• Good Corrosion Resistance: Performs well in general environments.

• Good Electrical and Thermal Conductivity: Suitable for electrical and heat exchange applications.

• Wide Application Range: Used in precision parts, fittings, decorative items, etc.

Product Applications

• Pipe Fittings: Used in water and gas pipe connectors.

• Electrical Industry: Terminals, connectors, etc.

• Heat Exchangers: Suitable for heat exchangers, radiators, etc.

• Decorative Materials: Door handles, decorative pieces, etc.

• Mechanical Parts: Gears, bearings, bushings, etc.

Processing Notes

• Hot and Cold Working: Be cautious of work hardening during cold working; hot working temperature should be between 600-800°C.

• Machining: Use high-speed steel or carbide tools with moderate cutting speeds.

• Welding: Good weldability; brazing or soft soldering is recommended.

• Surface Treatment: Polishing, plating, etc., can enhance appearance and corrosion resistance.

Main Application Scenarios

• Plumbing Industry: Pipe fittings, connectors, etc.

• Electrical Industry: Terminals, connectors, etc.

• Heat Exchangers: Radiators, heat exchangers, etc.

• Architectural Decoration: Door handles, decorative pieces, etc.

• Mechanical Manufacturing: Gears, bearings, bushings, etc.

Frequently Asked Questions (FAQs)

Q1: How is the machinability of CuZn40?

A1: CuZn40 has good machinability, suitable for general machining processes.

Q2: What is the corrosion resistance of CuZn40?

A2: It has good corrosion resistance in general environments but requires protection in acidic or alkaline conditions.

Q3: Is CuZn40 suitable for welding?

A3: It has good weldability; brazing or soft soldering is recommended.

Q4: What are the main application areas of CuZn40?

A4: It is widely used in plumbing, electrical, heat exchange, architectural decoration, and mechanical manufacturing industries.

Standard References

• International Standard: EN 12164 CW509L

• American Standard: ASTM B36 C28000

• Japanese Standard: JIS H3250 C2800

• Chinese Standard: GB/T 5231 H62