Marine-Grade Corrosion Resistance for Harsh Environments
Our copper nickel round bar serves a specific purpose. It resists corrosion in environments where pure copper fails. Seawater attacks copper aggressively. The salt content causes pitting and erosion. Copper nickel solves this problem. The nickel content creates a protective surface film. This film forms naturally when exposed to seawater. It heals itself if damaged. This self-healing property makes copper nickel ideal for marine applications. Our customers in shipbuilding specify this material. Offshore platforms also use it. Coastal power plants need it for cooling water systems. The material performs reliably in these challenging conditions.
Machining Considerations for Copper Nickel
Copper nickel is tougher than pure copper. It creates more friction during cutting. This causes faster tool wear. Our team uses harder cutting tools for this material. We select carbide grades specifically for copper alloys. The cutting speeds are lower than for pure copper. The feed rates are also adjusted. This prevents tool breakage and maintains surface quality. The surface finish matters for corrosion resistance. A smooth surface resists corrosion better than a rough one. Rough surfaces trap salt and moisture. Our workers inspect the surface finish carefully. They also monitor tool wear during production. A worn tool produces a rough finish.
Stock Sizes and Technical Specifications
We stock copper nickel round bar in Φ6, Φ8, Φ10, Φ18, Φ20, and Φ22. The numbers represent the diameter. The material is T2 copper base with nickel content. Production follows GB/T5585.1-2026. Copper purity reaches Cu≥99.90%. Total impurities stay below 0.10%. Conductivity is ≥97.3% IACS. Resistivity at 20°C stays ≤0.0177 Ω·mm²/m. Density is 8.9 g/cm³. Tensile strength ranges from 220 to 260 MPa. Yield strength exceeds 170 MPa. Hardness is 65 to 90 HV. Elongation is 17% or higher.
Where Copper Nickel Outperforms Pure Copper
Copper nickel round bar is the preferred material for seawater applications. Ship propellers and shafts use it. Heat exchangers in marine systems rely on it. Piping systems for offshore platforms need its corrosion resistance. The material also performs well in industrial settings. Chemical plants use it for piping. Pulp and paper mills use it in corrosive zones. The material also resists biofouling. Marine organisms do not attach easily to copper nickel. This reduces maintenance requirements. Our customers in these industries specify copper nickel for new projects. They also use it for replacement parts.
Order and Production Information
We start production right after order confirmation. Standard sizes ship within one week. Custom sizes take one to two weeks. The minimum order is 1000 kilograms. Mixed specifications are allowed. We welcome third-party inspection at our factory. Our raw material inventory stays well-stocked. We accept USD, EUR, and CNY. The material certificates confirm the copper and nickel content.
Technical Parameters
|
Parameter |
Value |
|
Material Grade |
T2 Copper Base + Nickel Alloy |
|
Copper Purity |
Cu≥99.90% |
|
Standard |
GB/T5585.1-2026 |
|
Electrical Conductivity |
≥97.3% IACS |
|
Resistivity (20°C) |
≤0.0177 Ω·mm²/m |
|
Density |
8.9 g/cm³ |
|
Tensile Strength |
220–260 MPa |
|
Yield Strength |
≥170 MPa |
|
Hardness |
65–90 HV |
|
Elongation |
≥17% |
|
Stock Sizes |
Φ6, Φ8, Φ10, Φ18, Φ20, Φ22 |
Hot Tags: copper nickel round bar, China copper nickel round bar manufacturers, suppliers, factory
