DIN 86019 Copper Nickel Pipe | Marine CuNi Pipe Supplier
- Standard: DIN 86019
- Material Grade: CuNi10Fe1Mn, CuNi10Fe1.6Mn, CuNi30Mn1Fe
- Equivalent UNS Grade: C70600, C71500
- Alloy Type: 90/10 Copper Nickel, 70/30 Copper Nickel
- Manufacturing Type: Seamless pipe, welded pipe available according to project requirement
- Pipe End: Plain end, beveled end, flared end, flanged end
- Application: Marine seawater piping, shipbuilding, offshore, desalination
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DIN 86019 copper nickel pipe is a marine-grade copper nickel pipe commonly used for shipbuilding and seawater service. Copper nickel alloys are selected for marine piping systems because they can form a stable protective film in seawater, reducing corrosion and extending the service life of the piping system.
The most commonly used grades for DIN marine copper nickel pipes include CuNi10Fe1Mn / CuNi10Fe1.6Mn and CuNi30Mn1Fe. The 90/10 copper nickel grade provides excellent corrosion resistance and cost efficiency for general seawater systems, while the 70/30 copper nickel grade offers higher strength and better erosion resistance for more demanding marine and offshore applications.
Copper nickel pipes manufactured according to DIN 86019 offer excellent resistance to seawater corrosion, good erosion corrosion resistance and reliable long-term performance in marine environments. DIN 86019 copper nickel pipes are suitable for seawater cooling systems, fire water systems, ballast water systems, bilge systems, desalination systems, heat exchangers and offshore piping systems.
We supply DIN 86019 copper nickel pipes in common marine grades such as CuNi10Fe1Mn, CuNi10Fe1.6Mn and CuNi30Mn1Fe, equivalent to 90/10 and 70/30 copper nickel alloys. Pipes can be supplied with matching copper nickel fittings and flanges for complete marine piping systems.
Available Material Grades
| DIN / European Grade | Common Name | UNS Equivalent | Alloy Type | Typical Use |
|---|---|---|---|---|
| CuNi10Fe1Mn | CuNi 90/10 | C70600 | 90/10 Copper Nickel | General marine seawater piping |
| CuNi10Fe1.6Mn | CuNi 90/10 | C70600 / equivalent | 90/10 Copper Nickel | Shipbuilding seawater systems |
| CuNi30Mn1Fe | CuNi 70/30 | C71500 | 70/30 Copper Nickel | Offshore and severe seawater service |
Note: Exact material grade and equivalence should be confirmed according to the project specification, DIN requirement and customer technical documents.
Typical Chemical Composition
CuNi10Fe1Mn / CuNi10Fe1.6Mn
| Element | Composition |
|---|---|
| Copper Cu | Balance |
| Nickel Ni | Approx. 9.0 – 11.0% |
| Iron Fe | Approx. 1.0 – 1.8% |
| Manganese Mn | Max. 1.0% |
| Zinc Zn | Max. 1.0% |
| Lead Pb | Max. 0.05% |
CuNi30Mn1Fe
| Element | Composition |
|---|---|
| Copper Cu | Balance |
| Nickel Ni | Approx. 29.0 – 33.0% |
| Iron Fe | Approx. 0.4 – 1.0% |
| Manganese Mn | Max. 1.0% |
| Zinc Zn | Max. 1.0% |
| Lead Pb | Max. 0.05% |
DIN 86019 Copper Nickel Pipe Specification
| Item | Specification |
|---|---|
| Standard | DIN 86019 |
| Material | CuNi10Fe1Mn, CuNi10Fe1.6Mn, CuNi30Mn1Fe |
| Equivalent Grade | C70600, C71500 |
| Alloy | 90/10 CuNi, 70/30 CuNi |
| Type | Seamless pipe / tube, welded pipe according to project requirement |
| Size | DIN 86019 standard sizes or customized sizes |
| Wall Thickness | According to DIN 86019 or customer specification |
| Length | Fixed length, random length, customized length |
| End Finish | Plain end, beveled end, flared end, flanged end |
| Surface Finish | Pickled, cleaned, polished, degreased |
| Test Certificate | EN 10204 3.1 / 3.2 available upon request |
| Inspection | Hydrostatic test, eddy current test, ultrasonic test, PMI, third-party inspection |
| Packing | Export wooden cases, bundles, pallets, seaworthy packing |
Why DIN 86019 Copper Nickel Pipe Is Used for Marine Piping?
Copper nickel pipe is one of the preferred materials for marine seawater systems due to its stable performance in seawater. DIN 86019 copper nickel pipes offer the following advantages:
Excellent seawater corrosion resistance
Copper nickel alloys form a protective surface film in seawater, reducing general corrosion.
Good erosion corrosion resistance
Suitable for flowing seawater systems such as cooling water, fire water and ballast water.
Biofouling resistance
Copper nickel alloys help reduce marine organism attachment inside the piping system.
Good fabrication performance
DIN 86019 copper nickel pipes can be welded, bent, flared and fabricated into pipe spools.
Long service life
Suitable for long-term service in ships, offshore platforms and coastal industrial systems.
Matching Copper Nickel Pipe Fittings
We can supply complete copper nickel piping fittings for DIN 86019 pipe systems, including:
Copper nickel elbows
Copper nickel tees
Copper nickel reducers
Copper nickel flanges
Copper nickel caps
Copper nickel stub ends
Copper nickel couplings
Copper nickel unions
Copper nickel pipe spools
Custom copper nickel fittings according to drawings
Pipes, fittings and flanges can be supplied together to ensure material compatibility and convenient installation.

Quality Control and Inspection
Our DIN 86019 copper nickel pipes can be inspected and tested according to project requirements and applicable standards.
Available inspection items include:
Chemical composition analysis
Mechanical property test
Visual inspection
Dimensional inspection
Wall thickness inspection
Surface quality inspection
Hydrostatic test
Eddy current test
Ultrasonic test
PMI material verification
Flattening test
Flaring test
Weld inspection if applicable
EN 10204 3.1 material certificate
Third-party inspection
Classification society inspection upon request

Packaging of DIN 86019 Copper Nickel Pipe
DIN 86019 copper nickel pipes are packed carefully to avoid damage, deformation, scratching and contamination during transportation. Standard export packing includes wooden cases, wooden pallets, plastic wrapping, waterproof protection and end caps.
For long pipes, pipes can be bundled securely with protective wrapping. Export seaworthy packing is available for international shipment.

Why Choose Us for DIN 86019 Copper Nickel Pipe?
Supply DIN 86019 copper nickel pipes for marine applications
Available in CuNi10Fe1Mn, CuNi10Fe1.6Mn and CuNi30Mn1Fe
Equivalent grades include C70600 and C71500
Suitable for shipbuilding, offshore, desalination and seawater systems
Matching copper nickel fittings and flanges available
Custom sizes and pipe spool fabrication available
Strict quality control and inspection process
EN 10204 3.1 / 3.2 certificates available upon request
Export seaworthy packing for safe delivery
Technical support for marine copper nickel piping projects

Features of DIN 86019 Copper Nickel Pipe
Manufactured according to DIN 86019 marine piping requirements
Excellent resistance to seawater corrosion
Good resistance to erosion corrosion in flowing seawater
Suitable for marine and offshore environments
Good weldability and fabrication performance
Suitable for bending, flaring, flanging and pipe spool fabrication
Long service life with low maintenance cost
Available in 90/10 and 70/30 copper nickel grades
Can be supplied with matching copper nickel fittings and flanges
Suitable for complete shipbuilding seawater piping systems
Applications of DIN 86019 Copper Nickel Pipe
DIN 86019 copper nickel pipes are widely used in marine and seawater piping systems, including:
Shipbuilding seawater piping systems
Marine seawater cooling systems
Fire water piping systems
Ballast water systems
Bilge water systems
Deck wash systems
Offshore platform piping
Seawater intake and discharge lines
Desalination plants
Heat exchangers and condensers
Coastal power plants
Marine oil and gas systems
Naval vessels, tankers, LNG carriers, bulk carriers and container ships









