White Copper Tubing: A Multi-disciplinary Alloy with Excellent Performance
Composition and properties
White copper tubing is a copper-based alloy tubing with copper as the base and nickel as the main added element, usually with a copper content of 55%-70% and nickel content of 5%-30%, with some alloys also containing zinc, iron, aluminum and other elements to enhance specific properties. Its core properties include:
Corrosion resistance
The addition of nickel significantly enhances the oxidation resistance of the alloy, allowing white copper tubes to exhibit excellent stability in harsh environments such as seawater, chlorides, and acidic media. For example, C70600 white copper tubes (containing 90% copper and 10% nickel) are widely used in offshore engineering for seawater cooling systems and can resist seawater corrosion for a long time.
Mechanical properties
Copper alloy tubes have high strength and hardness, while maintaining good ductility and plasticity, making them easy to process into complex shapes. For example, B30 copper alloy tubes (containing 70% copper and 30% nickel) are commonly used in ship condensers and chemical equipment due to their high corrosion resistance and strength.
Physical Properties
Thermal conductivity: suitable for heat exchange systems, such as air conditioning condensers, heat exchangers, etc.
Conductivity: Used to make conductive materials in the electronic industry, such as cell phones, tablet computers, heat pipes.
Anti-scaling: smooth inner wall, not easy to generate scale, to protect the long-term efficient operation of the pipeline.
Processing performance
Copper tubes can be annealed, solution treated and other processes to improve performance, and easy to weld, bend and cut to meet the needs of complex working conditions.
Classification and Application
According to application and composition, copper alloy tubes can be categorized into the following types:
Ordinary white copper (structural white copper)
B30 white copper tube: the most corrosion-resistant, but the price is higher, commonly used in ships, chemical equipment.
B10 white copper pipe: lower cost, balanced performance, suitable for desalination, oil pipeline.
Zinc white copper: such as "Chinese silver", strong corrosion resistance, widely used in instrumentation and medical devices.
Aluminum Copper: performance close to B30, lower price, can be used as a substitute material.
Precision resistance alloy white copper (electrical white copper)
Manganese White Copper: such as BMn 3-12 manganese copper, BMn 40-1.5 con copper, with high resistivity and low resistivity temperature coefficient, suitable for standard resistance elements, thermocouples and compensation wires.
Nickel-free Manganese White Copper: replacing nickel with manganese to reduce cost, used for precision electrical instruments.
Non-industrial use
Because of its beautiful color, white copper tube is often used to make decorations and handicrafts, such as musical instrument fittings and artistic sculptures.
Typical application areas:
Ship and ocean engineering: seawater cooling system, condenser, piping.
Chemical and petroleum: corrosion-resistant containers, valves, pump bodies.
Electricity and electronics: conductive materials, heat exchangers, resistive elements.
Medical Devices: Catheters, infusion tubes and other components with high safety requirements.
Construction and HVAC: water supply pipes, air conditioning pipes, utilizing its corrosion resistance and thermal conductivity.
Suggestions for Selection
Select components according to the application:
Prefer B30 or C70600 white copper tubing for marine environments;
Consider zinc white copper or aluminum white copper for cost-sensitive applications.
Focus on specification parameters:
Diameter and wall thickness affect pressure-bearing capacity and price, and need to be selected according to actual working conditions.
Choose formal:
Ensure material purity and processing quality to avoid performance degradation due to impurities.
We can provide high quality products, good service and competitive price. We have been committed to producing high quality copper products such as copper tubes, copper wires, copper plates, copper strips, copper rods and other copper products.
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