Machining Tellurium Copper Products

Tellurium Copper, typically represented by the alloy grade C14500, consists of approximately 99.5% copper and 0.4-0.7% tellurium. This alloy combines the outstanding electrical conductivity of pure copper with significantly improved machinability. Its physical properties include a density of 8.92 g/cm³ and a melting point of 1,038°C. The addition of tellurium enhances lubricity and chip breakability during machining, resulting in smoother and more efficient operations. With excellent hot and cold workability, C14500 is widely used in electrical connectors, switches, relays, and other components requiring precision machining. It is also suitable for welding and brazing applications.

 

Tellurium Copper (TeCu) is recognized as a free-machining copper alloy, making it ideal for parts that demand extensive machining, corrosion resistance, or high conductivity. During machining, it produces short, clean chips that are easy to remove, allowing for faster and more efficient processing compared to pure copper. These properties make Tellurium Copper a preferred choice for industries requiring high-performance, precision-engineered components.

 

We are renowned for producing high-quality precision parts from Tellurium Copper alloy, utilizing advanced CNC machining centers to create intricate and complex components. Our expertise allows us to offer OEM services, manufacturing Tellurium Copper products tailored to customer specifications, including custom designs, technical drawings, and specific requirements. Trust us to deliver reliable, high-performance solutions for your unique needs.

 

 

Copper (Cu): 99.5% (minimum)

Tellurium (Te): 0.4% - 0.7%

Other Elements: Trace amounts (e.g., phosphorus, iron)

The precise composition ensures optimal performance in terms of machinability, conductivity, and corrosion resistance.

 

• Excellent Machinability

The addition of tellurium significantly improves the alloy's machinability, allowing for easy fabrication into complex shapes and components.

• High Electrical and Thermal Conductivity

Retains a significant portion of copper's natural conductivity, making it suitable for electrical and thermal applications.

• Good Corrosion Resistance

Resists corrosion in various environments, including industrial and marine settings.

• High Strength and Durability

Offers good mechanical strength and wear resistance, ensuring long-term performance in demanding conditions.

• Non-Sparking Properties

Safe for use in explosive or flammable environments due to its non-sparking nature.

• Cost-Effective

Provides a balance of performance and cost, making it an economical choice for many applications.

 

 

TEMPER	Yield Strength	Ultimate Tensile Strength	Brinell Hardness (500kg/10mm)
Annealed	11	33	38
1/2 Hard	40	42	76
Hard	44	48	81

 

 

 

 

• Machining Tellurium Copper Products are used in a wide range of industries, including:
• Electrical Components: Connectors, terminals, and switchgear.
• Industrial Machinery: Bearings, bushings, and wear-resistant parts.
• Plumbing Systems: Valves, fittings, and pipes for water and gas distribution.
• Automotive: Fuel lines, brake components, and electrical systems.
• Marine Engineering: Fasteners, pumps, and fittings exposed to seawater.

 

 

 

• Superior machinability for complex component fabrication.
• Excellent electrical and thermal conductivity.
• Good resistance to corrosion in harsh environments.
• High mechanical strength and durability.
• Non-sparking and safe for hazardous environments.
• Cost-effective solution for a wide range of applications.

 

Why Choose Machining Tellurium Copper Products?

Machining Tellurium Copper Products are a reliable and versatile material for applications that demand high machinability, conductivity, and corrosion resistance. Their unique combination of properties makes them an excellent choice for industries ranging from electrical manufacturing to marine engineering.

 

 

Q1: What are the main components of copper tellurium?
A: Tellurium copper usually contains more than 99% copper (Cu), tellurium (Te) 0.4-0.7%, some models add phosphorus (P) to improve the deoxidation effect.

Q2: Does the electrical conductivity of copper tellurium decrease due to processing?
A: Through the precise temperature-controlled thermal treatment process, copper tellurium can recover more than 95% conductivity after cold processing to ensure stable performance.

 

Q3: What surface treatments is tellurium copper suitable for?
A: Support silver plating, nickel plating, passivation and other processing, it is recommended to degreasing and pickling before pretreatment to improve adhesion.

 

Q4: How to distinguish copper tellurium from copper chromium zirconium?
A: Tellurium copper has better cutting ability and lower cost, while chromium zirconium copper (CuCrZr) focuses on high-strength wear resistance scenarios.

 

Q5: What is the corrosion resistance of copper tellurium?
A: Corrosion resistance in conventional industrial environment is better than pure copper, but strong acid and alkali environment is recommended to use with surface coating.

 

Q6: What parameters are required when ordering copper tellurium?
A: It is necessary to specify the alloy grade (such as C14500), state (hard/semi-hard), dimensional tolerance and testing standard (ASTM/GB).

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