C73200 white copper, also known as zinc white copper, is a copper alloy with excellent overall properties. The following is detailed information about C73200 white copper:
Chemical Composition
Copper (Cu) + Silver (Ag): Total not less than 70.5%
Nickel (Ni) + Cobalt (Co): 16.5%-19.5%
Zinc (Zn): Balance
Iron (Fe): Not more than 0.09%
Lead (Pb): Usually present as an impurity, total not more than 0.50%
Manganese (Mn): Usually very low
Impurities: Total not more than 0.50%
Physical and Mechanical Properties
Good Ductility: Suitable for hot and cold forming
High Hardness: Excellent wear resistance and machinability
Excellent Corrosion Resistance: Suitable for use in harsh environments
Beautiful Color: Suitable for the manufacture of precision parts
Applications
Instruments: Used in the manufacture of precision instruments
Medical Devices: Used in the manufacture of medical equipment
Commodity Products: Used in the manufacture of high-quality daily necessities
Communications: Used in the manufacture of communications equipment
Shipbuilding: Used in the manufacture of ship components
Electric Power: Used in the manufacture of power equipment
Petrochemicals: Used in the manufacture of chemical equipment
Machinery: Used in the manufacture of mechanical parts
Electronics: Used in the manufacture of electronic components
Environmental Protection: Used in environmental protection equipment
Functions of Alloying Elements
Zinc (Zn): Provides solid solution strengthening
Nickel (Ni): Improves the alloy's strength, toughness, and resistance to dezincification and stress corrosion cracking
Lead (Pb): Enhances lubricity, improves wear resistance, and improves machinability
Aluminum (Al): Improves corrosion resistance, thermal stability, and strength, but can cause brittleness in excess.
Manganese (Mn): Improves corrosion resistance, thermal stability, and strength, but can cause brittleness in excess.
Magnesium (Mg): Trace amounts of magnesium reduce copper's electrical conductivity, improve copper's resistance to high-temperature oxidation, and also deoxidize copper.
why choose us
Professional copper pipe supplier
The company has a cluster of leading copper processing production lines in China, including:
German imported precision copper tube production line (annual output of 30,000 tons)
Japanese technology copper foil rolling line (thinnest up to 6μm)
Fully automatic copper bar continuous extrusion line
Intelligent copper sheet and strip finishing mill unit
Digitalized control and management of the whole production process is realized through MES system, and the dimensional accuracy of the products can reach ±0.01mm.
Contact us today for a quotation：sales@gneesteel.com
Packaging and shipping
GNEE offers professional packaging for exported copper pipes. First, we apply anti-rust oil and plastic film to prevent oxidation. Then, we securely strap with steel straps and add corner protectors. Finally, we place the pipes on wooden pallets and reinforce them with iron or wooden boxes, ensuring they are moisture-proof and impact-resistant during ocean transport, while facilitating easy loading and unloading. All packaging meets export standards.
Customer visits
GNEE participated in the exhibition
