Copper-nickel Tube
Yantai Wanlong Vacuum Metallurgy Co., Ltd. is one of the most reliable manufacturers and suppliers of copper-nickel tube in China. With abundant experience, we are committed to providing high quality customized products for global clients. Welcome to buy bulk premium copper-nickel tube from our factory.
Product Introduction
Copper-nickel tube, also known as copper-nickel alloy tube, is seamless copper-nickel alloy piping, serving as a core corrosion-resistant piping spare part for ship and offshore engineering equipment.
Product Features
1. Excellent seawater corrosion resistance:It performs reliably in high-salinity high-flow seawater and outperforms carbon steel and stainless steel.
2. Good mechanical performance: High strength and ductility with fatigue and cavitation resistance.
3.Large-size forming capability:Vacuum casting of copper alloy ingots up to 20t, the largest single ingot weight in China.
Solved equipment & process bottlenecks for large-diameter seamless cupronickel tubes and realized industrialization.
Manufacturing Process
Vacuum casting of alloy billet → Forging → Spinning forming → Machining → NDT → Hydrostatic pressure test → Final inspection & delivery
Material
B10(CuNi90/10)
B30(CuNi70/30)
|
Chemical Composition (wt%) |
|
|
Element |
Content |
|
Cu |
Balance (88.0~91.0%) |
|
Ni+Co |
9.0 ~ 11.0 % |
|
Fe |
1.0 ~ 1.8 % |
|
Mn |
≤1.0 % |
|
Pb |
≤0.02 % |
|
C |
≤0.05 % |
|
S |
≤0.01 % |
|
Zn |
≤0.3 % |
|
P |
≤0.006 % |
|
Total impurities |
≤0.7 % |
|
Physical & Mechanical Properties |
|
|
Property |
Value |
|
Thermal Conductivity |
≈45 W/(m·K) |
|
Electrical Conductivity |
≈9% IACS |
|
Tensile Strength |
≥275 MPa |
|
Yield Strength |
≥105 MPa |
|
Elongation |
≥30% |
Application Fields
Widely used in shipbuilding, offshore engineering and oil drilling platforms.
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