Cu-Ni 90/10 (C70600)
0190/10 copper-nickel for seawater corrosion resistance.
- UNS
- C70600
- Best For
- Marine cooling and condenser service
Material · Cu-Ni
Cupro Nickel
Piping Solutions.
Cu-Ni 90/10 & 70/30 fittings, flanges and tubes for seawater systems. C70600/C71500/C71640 grades with MTCs and worldwide marine project export support.
ISO 9001PEDEN 10204 3.1
Overview
Cupro Nickel Manufacturer & Exporter
Nascent Fittings Inc. supplies Cupro Nickel 90/10 and 70/30 fittings, tubes and flanges for seawater cooling, desalination and marine piping systems, with export packaging and full documentation.
Available Forms
Pipes & TubesPipe FittingsFlangesCustomised BendsCustom Components
Cupro Nickel
Precision-engineered for critical service
Specifications
Material Properties
Material Family
Copper-Nickel Alloy
Corrosion Resistance
Excellent
Oxidation Resistance
Excellent
Strength
Moderate to High
Weldability
Good
Machinability
Good
Heat Resistance
Good
Cryogenic Service
Yes
Performance
Key Advantages
- Excellent seawater corrosion resistance
- Good resistance to biofouling
- Reliable performance in condenser and cooler service
- Good fabricability for marine piping
- Long service life in saline environments
Use Cases
Industries & Applications
Marine & OffshoreShipbuildingDesalinationSeawater CoolingPower GenerationOil & Gas
Why Nascent Fittings Inc.
- Marine-grade material expertise
- Standards-compliant manufacturing
- Custom fabrication options
- Worldwide shipping support
- Strict dimensional and material quality control
Grades
Available Grades
Specs shown for reference — confirm exact grade and standard with our technical team for your duty conditions.
Cu-Ni 70/30 (C71500)
0270/30 copper-nickel for more aggressive seawater service.
- UNS
- C71500
- Best For
- Desalination and offshore piping
C71640
03Copper-nickel-iron-manganese alloy with enhanced resistance in high-velocity seawater.
- UNS
- C71640
- Best For
- High-velocity seawater systems
Product Range
Cupro Nickel Products
19 product lines available in Cupro Nickel
1/2" to 36"NB , ANSI/ASME B 16.9 · 10/20/40/80/100/120/160/XXS
1/2" to 80"NB · 10/20/40/80/100/120/160/XXS
15mm- 1500mm (1/2"- 60")
1/2" to 80"NB , ANSI/ASME B 16.9 · 10/20/40/80/100/120/160/XXS
1/2" to 4"NB, · 10/20/40/80/100/120/160/XXS
Common diameters and cut lengths
1/2" to 80" NB, ANSI/ASME B 16.9, MSS-SP-43, MSS-SP-75, MSS-SP-97, MSS-SP-95 etc. · Sch 10/20/40/XS/60/80/100/120/140/160/XXS etc.
1/2" NB to 4" NB, (Socket Weld & Threaded)
1/2" to 80" NB. · Sch 10/20/40/XS/60/80/100/120/140/160/XXS etc.
Pipe Flanges Manufacturer & Exporter
1/2" TO 36" · Sch 5 TO Sch XXS.
Long Radius Pipe Bends Manufacturer
1/2" to 80"NB · 10/20/40/80/100/120/160/XXS
1/2″ NB to 48″ NB (and project sizes) · Sch 5s, 10s, 20s, 40s, 80s, 160s, XXS / custom wall
1/2" to 80"NB · 10/20/40/80/100/120/160/XXS
Common imperial & metric tube OD ranges
as per required
OD and wall to ASTM / ASME / EN (instrument & heat-exchanger sizes)
1/2″ NB to 48″ NB (project dependent) · Sch 5s through XXS / custom
Compliance
Applicable Standards
Details are resolved from the shared standards catalog — scope, coverage and related properties for each specification.
ASTM B466
ASTMSeamless copper-nickel pipe and tube.
- Scope
- Seamless Cu-Ni pipe and tube for marine and industrial service.
- Typical Grades
- C70600 (90/10), C71500 (70/30)
ASTM B467
ASTMWelded copper-nickel pipe.
- Scope
- Welded Cu-Ni pipe for seawater and process systems.
- Typical Grades
- C70600, C71500
ASTM B151
ASTMCopper-nickel-zinc alloy (nickel silver) and copper-nickel rod and bar.
- Scope
- Rod and bar products in copper-nickel alloys.
- Applies To
- Machined fittings, fasteners and bar stock components
Documentation
Certificates & Inspection
ISO 9001
Quality Management System certification.
- Type
- Quality Management System
- Scope
- Demonstrates a documented QMS covering process control, traceability and continual improvement across manufacturing and supply.
- Benefit
- Assures buyers of consistent product quality and controlled production practices.
- Issued As
- Third-party accredited certificate
PED
Pressure Equipment Directive compliance for equipment placed on the EU market.
- Type
- Regulatory conformity
- Scope
- Design and conformity assessment requirements for pressure equipment and assemblies in the European Union.
- Benefit
- Enables supply of pressure-rated components into EU projects when PED conformity is required.
- Related
- CE marking / Notified Body routes as applicable
EN 10204 3.1
Mill test certificate with inspection by the manufacturer’s authorized inspection representative, independent of manufacturing.
- Type
- Inspection document (MTC)
- Scope
- States chemical analysis, mechanical test results and heat / lot identification for the supplied material.
- Documentation
- EN 10204 Type 3.1
- Benefit
- Provides traceable material evidence required on most industrial RFQs.
Selection Guide
Comparison Insights
Performs Better Than
- Carbon steel in seawater cooling service
- Many copper alloys for biofouling resistance
- Standard stainless grades in certain seawater condenser duties
Considerations
- Higher cost than carbon steel
- Velocity and design limits must be respected in seawater systems
FAQ
Frequently Asked Questions
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