Chemical Composition:
Copper (Cu): ≥99.5%
Silver (Ag): 43.0%-47.0%
Nickel (Ni) + Cobalt (Co): 9.0%-11.0%
Lead (Pb): ≤0.20%
Mechanical Properties:
Tensile Strength (σb): ≥550 MN/m²
Yield Strength (σs): ≥200 MN/m²
Elongation (δ5): ≥40%
Reduction of Area (ψ): ≥60%
Processing Properties:
Excellent cold working and elongation properties
Corrosion and fatigue resistance
Excellent deep drawability
Good weldability
Applications:
Widely used in the manufacture of precision parts for instruments, meters, medical devices, daily necessities, and communications.
Specific applications include antennas, crystal resonator housings, mobile phone shields, optical instruments, silverware, jewelry, zippers, keys, potentiometer sliders, medical equipment, construction, and wind instruments.
Heat Treatment:
Casting Temperature: 1170°C
Annealing Temperature: 700-750°C
Hot Working Temperature during Rolling: 950-970°C
Low-Temperature Annealing Temperature for Internal Stress Relief: 250°C
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
