ASTM B466 C70600 Copper Nickel Seamless Pipe | CuNi 90/10 DIN 86019 Pipe

ASTM B466 C70600 Copper Nickel Pipes, also known as CuNi 90/10 pipes, are high-performance copper-nickel alloy pipes designed for seawater, marine, offshore, and industrial cooling systems.

Manufactured from a 90% copper and 10% nickel alloy with iron and manganese additions, UNS C70600 copper nickel pipes offer outstanding resistance to:

• Seawater corrosion

• Erosion and impingement attack

• Biofouling

• Chloride stress corrosion

Because of these properties, CuNi 90/10 seamless pipes are widely used in shipbuilding, offshore oil & gas, desalination plants, power stations, and marine heat exchangers.

CuNi 90/10 Pipe Standards

Our ASTM B466 C70600 copper nickel pipes comply with international marine and industrial standards.

Major Standards

• ASTM B466 – Seamless Copper Nickel Pipe

• ASME SB466

• ASTM B467 – Welded Copper Nickel Pipe

• DIN 86019 – Marine Copper Nickel Pipe

• EEMUA 144 / EEMUA 234

• MIL-T-16420K

Equivalent Designations

ASME-SB-466 ASTM B466 UNS C70600 Copper Nickel Seamless Pipes

This specification covers the requirements for seamless UNS C70400, C70600, C71000, C71500, C71520, and C72200 copper-nickel pipes and tubes in straight lengths suitable for engineering applications. UNS C70620 and C71520 copper alloys are intended for products that are to be welded subsequently. Each product should be manufactured from cast billets by hot extrusion or piercing and then subjected to cold working and annealing. The standard tempers for the products in this specification are soft annealed (O60), light drawn (H55), hard drawn (H80), and hard drawn and end annealed (HE80). Pipe and tube tensile properties, Rockwell hardness, and test performance should conform to the values specified herein. Performance requirements include those from expansion, flattening, and eddy Current tests.

Material

Copper Nickel CuNi10Fe1.6Mn (CuNi 90/10)

Size Range

Outer Diameter
15 mm – 508 mm

Wall Thickness
1 mm – 11 mm

Pipe Size
1/2″ – 20″ (DN15 – DN500)

Length
Standard 6 meters or custom length

Schedule

• SCH10

• SCH40

• SCH80

• STD

Pipe Types

• Seamless Copper Nickel Pipe (≤419mm)

• Welded Copper Nickel Pipe (>419mm)

Pipe Ends

• Plain End (PE)

• Beveled End (BE)

• Threaded End

C70600 Copper Nickel Pipe Pressure Rating

DIN 86019

• 10 bar

• 14 bar

EEMUA Standards

• 16 bar

• 20 bar

MIL-T-16420K

• Class 200

• Class 700

Copper Nickel 90/10 Chemical Composition

The addition of iron and manganese improves resistance to seawater erosion and corrosion, making CuNi 90/10 ideal for marine piping.

Applications of ASTM B466 C70600 CuNi Pipes

Because of their excellent corrosion resistance, C70600 copper nickel pipes are widely used in demanding environments.

Marine Industry

• Ship seawater piping systems

• Marine cooling water pipelines

• Shipboard condensers

Offshore Oil & Gas

• Offshore platform piping

• Firewater systems

• Subsea cooling systems

Power Plants

• Condenser cooling pipes

• Heat exchanger piping

• Turbine cooling systems

Desalination Plants

• Seawater intake pipelines

• Brine discharge pipelines

• Evaporator piping systems

What Is DIN 86019 Copper Nickel Pipe?

DIN 86019 is a German marine standard for copper nickel pipes used in seawater systems and shipbuilding applications.

DIN 86019 pipes are designed for:

• Ship seawater pipelines

• Marine cooling systems

• Offshore engineering projects

Advantages include:

• High corrosion resistance

• Long service life

• Excellent mechanical strength

• Reliable performance in seawater environments

Copper Nickel Products We Supply

We supply a full range of UNS C70600 copper nickel products, including:

• ASTM B466 C70600 seamless pipes

• ASTM B111 C70600 copper nickel tubes

• ASTM B171 C70600 plates

• ASTM B151 C70600 bars

• C70600 forged flanges

Other copper nickel grades available:

• CuNi 90/10 – C70600

• CuNi 70/30 – C71500

• UNS C71640

Why Choose Our C70600 Copper Nickel Pipes

✔ Strict quality inspection
✔ Competitive factory pricing
✔ Custom sizes available
✔ Global export supply
✔ Fast production and delivery

All pipes are supplied with EN 10204 3.1 Mill Test Certificate (MTC) and packed in seaworthy wooden cases suitable for international shipping.

FAQ – CuNi 90/10 Copper Nickel Pipe

What is C70600 copper nickel pipe?

C70600 is a 90/10 copper nickel alloy pipe used for marine and seawater applications because of its excellent corrosion resistance.

Why is CuNi 90/10 used in seawater systems?

CuNi 90/10 has natural resistance to:

• Seawater corrosion

• Biofouling

• Erosion in high-velocity water

This makes it ideal for marine pipelines and heat exchangers.

What is the difference between CuNi 90/10 and CuNi 70/30?

• CuNi 90/10 (C70600) → common marine piping material

• CuNi 70/30 (C71500) → higher strength and corrosion resistance

ASTM B466 UNS C70600 copper nickel seamless pipes (CuNi 90/10) provide outstanding corrosion resistance, durability, and cost-effective performance for marine, offshore, and seawater applications. Fully compliant with ASTM B466, ASME SB466, and DIN 86019, CuNi 90/10 seamless pipes are a proven solution for long-term service in harsh marine environments.