Gnee Steel (tianjin) Co., Ltd

CuZn40 Copper

Jan 14, 2026

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.

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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

-

C28000 brass
C28000 yellow brass
C28000 Muntz metal
C28000 composition

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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.

 

FAQ

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.

 

Our factory

We operate a modern, specialized copper production facility equipped with advanced continuous casting and rolling lines, precision CNC machining equipment, and a rigorous quality inspection system, focusing on the manufacturing of copper tubes, plates, rods, wires, and strips. The factory is ISO9001 certified and possesses a complete industry chain capability-from raw material smelting and precision processing to finished product sorting. With an annual production capacity of tens of thousands of tons, we can flexibly handle customized orders, ensuring that our products meet international standards in dimensional accuracy, mechanical properties, and surface finish.

C28000 properties

 

Copper product packaging

We implement customized packaging solutions based on product characteristics: copper tubes and rods are wrapped with moisture-resistant kraft paper, reinforced with bundling, and secured on wooden pallets or iron frame boxes to prevent deformation and damage during transit. Copper plates and strips are covered with protective film, separated by foam padding between layers, and externally secured with steel strapping along with waterproof packaging. Wires are coiled on industrial reels or vacuum-packed with plastic film. All packaging includes clear labels indicating product specifications, batch numbers, and protective symbols, ensuring safe delivery during long-distance sea and land transportation.

C28000 supplier

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