Nickel-Copper Alloy Pipe

Introduction

Product Name: Nickel and copper-nickel alloy stainless steel pipe

Outer Diameter: 8-2500mm， (3/8"-100")

Thickness: 0.3-150mm，(SCH10-XXS)

Length: 2000mm, 2438mm, 3000mm, 5800mm, 6000mm,12000mm， etc

Standard: ASTM，AISI，JIS，GB， DIN，EN

Surface: BA，2B，NO.1，NO.4，4K，HL，8K

Certification: ISO, SGS，BV

Technique: Cold Rolled Hot Rolled

Grade（ASTM UNS）：N04400、N05500、N4、N6、254Smo、17-4PH、2507、904L、      304、304L、 321、 316、316L、317L、347H、309S、310S、904L、S32205、2507、254SMOS、  32760、S31703、S31603、316Ti、S31635、S31254、N08926、2205、S32205、S31008、S30908、S32750、  S32760、630 etc

Grade （EN）: 1.4301，1.4307，1.4541，1.4401，1.4404，1.4571，1.4438，1.4539，1.4547，1.4529，1.4410，1.4501，1.4462，1.4845，1.4542，,etc

Copper Nickel alloys

Copper Nickel 70/30 Seamless Pipes 
Cupro Nickel 70/30 Seamless Pipes, UNS C71500 Seamless Pipes, DIN 2.0882 Seamless Pipes

Copper Nickel 70/30 Seamless Tubes 
Cu-Ni 70/30 Seamless Tube, CuNi UNS C71500 Seamless Tubing, DIN 2.0882 Seamless Tubes

Copper Nickel 70/30 Welded Pipes 
Cupro Nickel 70/30 Welded Pipes Supplier, UNS C71500 Welded Pipes, Cu-Ni DIN 2.0882 Welded Pipe

Copper Nickel 70/30 Welded Tubes 
70/30 CuNi Welded Tubing, UNS C71500 Welded Tube, ASME SB111 Copper Nickel 70/30 Welded Tubing

Copper Nickel 70/30 ERW Pipes 
Cupro Nickel 70/30 ERW Pipe Supplier, CuNi Alloy UNS C71500 ERW Pipes, Cu-Ni DIN 2.0882 ERW Pipe

Copper Nickel 70/30 ERW Tubes 
UNS C71500 ERW Tube, DIN 2.0882 ERW Tubing, ASTM B111 Cupro Nickel 70/30 ERW Tubes, Cu-Ni 70/30 ERW Tubes

Cupro Nickel Tubes 90/10 for Heat Exchangers & Condensers

Cupro Nickel Tubes 90/10 for Automobile IndustriesCopper Nickel 90/10 Seamless Pipes

Cupro Nickel 90/10 Seamless Pipes, UNS C70600 Seamless Pipes, DIN 2.0872 Seamless Pipes

Copper Nickel 90/10 Seamless Tubes 
Cu-Ni 90/10 Seamless Tube, CuNi UNS C70600 Seamless Tubing, DIN 2.0872 Seamless Tubes

Copper Nickel 90/10 Welded Pipes 
Cupro Nickel 90/10 Welded Pipes Supplier, UNS C70600 Welded Pipes, Cu-Ni DIN 2.0872 Welded Pipe

Copper Nickel 90/10 Welded Tubes 
90/10 CuNi Welded Tubing, UNS C70600 Welded Tube, ASME SB111 Copper Nickel 90/10 Welded Tubing

Copper Nickel 90/10 ERW Pipes 
Cupro Nickel 90/10 ERW Pipe Supplier, CuNi Alloy UNS C70600 ERW Pipes, Cu-Ni DIN 2.0872 ERW Pipe

Copper Nickel 90/10 ERW Tubes 
UNS C70600 ERW Tube, DIN 2.0872 ERW Tubing, ASTM B111 Cupro Nickel 90/10 ERW Tubes, Cu-Ni 90/10 ERW Tubes

Specification

The Move To Copper-Nickel Tubing

Copper had been proved since the early days to have many good attributes. It was easy to bend and had 
very high corrosion resistance, but there was concern about its low corrosion-fatigue strength. When cupro 
nickel was introduced, it displayed corrosion resistance similar to copper, higher general strength and better 
fatigue strength.

Properties of Copper-Nickel Brake Tubing

The copper-nickel alloy used for brake tubing typically contains 10% nickel, with iron and manganese 
additions of 1.4% and 0.8% respectively. The product conforms to ASTM B466 (American Society for Testing 
and Materials), which specifies dimensions, tensile strength and yield strength. Formability and internal 
cleanliness conform to specifications SAE J527, ASTM A254 and SMMT C5B (Society of Motor 
Manufacturers and Traders). Also, the alloy meets the requirements for pressure containment, fabrication 
and corrosion resistance for ISO 4038 (International Standards Organization) and SAE J1047.

Cupronickel or copper-nickel or "cupernickel" is an alloy of copper that contains nickel and strengthening 
elements, such as iron and manganese. Cupronickel is highly resistant to corrosion in seawater, because its 
electrode potential is adjusted to be neutral with regard to seawater. Because of this, it is used for piping, heat 
exchangers and condensers in seawater systems, as well as marine hardware, and sometimes for the propellers, 
crankshafts and hulls of premium tugboats, fishing boats and other working boats.

Cupronickel other registered as tradenames are Alpaka or Alpacca' (registered trademark), Argentan Minargent, and 
the French term name Cuivre blanc. Occasionally, cupronickel is also referred to as "hotel silver", plata alemana 
(Spanish for "German silver"), "German silver" and "Chinese silver".

Sometimes called cupro-nickels, there exists a range of different copper nickel alloys that possess different 
properties and hence are suited to a range of different applications. Some of the better known copper nickel alloys 
include: 
Copper with 10% nickel 
Copper with 30% nickel 
Copper with 25% nickel with 0.05-0.4% manganese 
Copper with 45% nickel (also known as constantan)

Chemical Composition of Copper Nickel 70/30 Pipes & Tubes

Mechanical Properties of Cu-Ni 70/30 Pipes and Tubing

Physical Properties of Cupro Nickel 70/30 Pipes & Tubes

Chemical Composition of Copper Nickel 90/10 Pipes & Tubes

Mechanical Properties of Cu-Ni 90/10 Pipes and Tubing

Physical Properties of Cupro Nickel 90/10 Pipes & Tubes

All copper nickel alloys consist of only one phase as the copper nickel binary system exhibits complete solid 
solubility

Applications of Copper Nickel alloys:

Sea Water Condensor Systems And Desalination Plants 
Due to the good resistance to sea water corrosion, the copper nickel alloy Copper 90/10 and copper nickel alloy 
Copper 70/30 are employed for sea water condenser systems and in desalination plants, as well as pipe work in 
chemical plants.

Automotive Applications 
Due to the fact that the copper nickel alloy Copper 90/10 requires no surface protection and hence gives extra 
safety, this copper nickel alloy is being increasingly employed for brake and hydraulic suspension systems and 
cooling systems in cars and commercial vehicles.

Marine Applications 
The good resistance to biofouling and sea water corrosion resistance of the copper nickel alloys, Copper 90/10 and 
Copper 70/30 alloys have lead to its use in applications such as cladding for ships' hulls, legs of oil rig platforms 
and sea water intake screens.

Coins 
The copper nickel alloys composed of copper with 25% nickel with 0.05-0.4% manganese is commonly used for the 
manufacture of coins, medals and other semi valuable applications.

Resistance Wire 
Due to the very low temperature co-efficient of electrical resistivity, the copper nickel alloys composed of copper with 
45% nickel alloy is used for resistance wire in high precision resistors. This property of copper nickel alloys allows 
the resistor to operate at almost exactly the same resistance regardless of temperature.

Thermocouples 
The copper nickel alloys composed of copper-45% nickel alloy is also used for thermocouples as it develops a high 
and uniform EMF when coupled with other metals such as copper and iron.

Other 
Copper nickel alloys are also used in cooling circuits, ammunition, sea water corrosion-resistant assemblies, 
condenser tubes.

Other Applications

· Sea water pipework 
· Offshore fire water systems 
· Heat exchangers and condensers 
· Sheathing of legs and risers on offshore platforms and boat hulls 
· Hydraulic lines 
· Fish cages for aquaculture 
· Desalination units

Property Table of Copper Nickel Alloys

Production process