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Copper Nickel 70/30 Pipe

Copper nickel 70/30 pipe specifications

What is a Copper Nickel 70/30 Pipe?

These performance-focused pipes use a 70% copper and 30% nickel constitution and perform consistently in marine, abrasive, and polluted environments. A copper nickel 70/30 pipe contains iron (0.7%) and manganese (1%) too, exhibiting good weldability and pitting resistance.

We supply UNS C71500 welded pipe and Cu-Ni 70/30 Pipes in India, for high-pressure systems

Can Copper Nickel 70/30 pipes be used in high-pressure systems?

High-pressure petroleum and oil and gas sectors often use cupro nickel 70/30 pipes. They boast a tensile strength of 359 MPa and adapt well to extreme temperatures and high-velocity flows. Buyers can procure this piping from SCH 10 to XXS for pressure classes 150 to 2500.


Specification of copper Nickel 70/30 Pipe

Specifications Size Wall Thickness
EN10216-5, ASTM A 312/A790/, ASME SA 312/ SA790 4mm - 219mm 0.1mm - 60mm
Schedule End Types
SCH5/ 5S, SCH80, SCH10/ 10S, SCH160, STD, SCH40/ 40S Plain end, treaded, beveled end Seamless pipe, welded pipe, ERW pipe, round pipe, square pipe

Manifest Alloys is a premier provider of UNS C71500 Pipe and Copper Nickel 70-30 Seawater Pipes, offering a comprehensive selection of sizes and specifications

What are the specifications of a Copper Nickel 90/10 Pipe?

These pipes are less suited to high-velocity waters than an ASTM B466 cupro nickel 70/30 seamless pipe but still enjoy immense popularity due to their cost-effectiveness. The standard sizing is from ½ to 6 inches.

Customers can order these products per international standards, for instance, a UNS C71500 pipe, DIN, or ASTM specifications. They are available in many finishes, like mill, polished, bright, etc., across wall thicknesses from 0.2 to 120 mm. We are committed to thoroughly testing products via spectro analysis and positive material identification.

Types of CUNI 70/30 pipe


Copper nickel 70/30 pipe

Copper Nickel 70/30 Pipe

UNS C71500 welded pipe

UNS C71500 welded pipe

Cu-ni 70/30 seamless pipes

Cu-ni 70/30 seamless pipes

DIN 2.0882 ERW pipe

DIN 2.0882 ERW pipe

We are dedicated to providing Copper Nickel C71500 Pipe that is both high-quality and affordable to our customers. also, see What applications are there for 70/30 Copper Nickel Class 200 Seamless Pipe

What are the applications of cupro nickel 70/30 pipes?

From seawater piping and construction to heat exchangers and air conditioners, the applications of a DIN 2.0882 pipe are spectacular. Desalination, naval shipping, petrochemicals, and power generation also extensively use these pipes.

Chemical composition of copper nickel 70-30 seamless pipe


Grade Mn Cu Pb Fe Ni Zn
70/30 1 max 65.0 min 0.5 max 0.4-1.0 29-33 1 max
Cupro nickel 70/30 pipes are ideal for use in piping systems, see the benefits of using DIN 2.0882 pipe that transports saltwater and other corrosive fluids

What are the benefits of using a Copper Nickel 70/30 pipe in industrial settings?

A Cu-Ni 70/30 welded pipe delivers brilliant advantages in industrial applications, making it an economical, worthwhile choice from a lifecycle perspective.

  • Resists chloride-ion-induced cracking
  • Withstands biofouling
  • Desirable heat transfer properties
  • Can handle both low and high temperatures up to 1038°C

Mechanical properties of cunifer 70/30 welded pipe


Grade Melting point Density Tensilestrength Elongation Yieldstrength(0.2%Offset)
70/30 2260°F 0.323 lb/in3 at 68°F 50000 PSi 30% 20000PSi
Would you like to find out more about UNS C71500 square Pipes and ASTM B466 Cupro Nickel 70/30 Seamless Pipe? Manifest Alloys has details on the corrosion resistance and durability of this alloy

How does a Copper Nickel 70/30 Pipe offer improved corrosion resistance compared to other pipes?

A UNS C71500 square pipe has exemplary corrosion resistance due to its high copper content. It leads to the development of a protective cuprous oxide layer. The iron and manganese inclusions boost its resilience further.

Equivalent properties of CUNI 70-30 ERW pipe


Grade UNS Werkstoff Nr.
70/30 C71500 2.0882