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ASTM B111 UNS C70600 Copper Nickel Tube DN25 6M

Size: 1 Inch (DN25/33.4mm)
Wall thickness: SCH40S (3.38mm)
Material: UNS C70600 (BFe10-1-1/CN102/CuNi10Fe1Mn)
Length: 6M

  • Type: UNS C70600 Copper Nickel Tube
  • Material: ASTM B111 UNS C70600 (BFe10-1-1/CN102/CuNi10Fe1Mn)
  • OD: 1 Inch (DN25/33.4mm)
  • Wall thickness: SCH40S (3.38 mm)
  • Length: 6M

UNS C70600, also known as copper-nickel 90/10, is a copper-nickel alloy with a composition of 90% copper and 10% nickel. It is commonly used in the manufacture of piping for a variety of applications, including marine, industrial and construction uses. Copper-nickel alloys are known for their excellent corrosion resistance, high strength and low magnetic permeability. They are also easy to fabricate and have good formability, making them a popular choice for a variety of industries.

ASME SB 111 SB 466 C70600 Pipe| EEMUA 234 UNS 7060X copper-nickel alloy for protection against seawater corrosion and high antifouling properties against marine microorganisms. c70600 copper-nickel pipe/copper-nickel 90/10 seamless pipe has good corrosion resistance, especially in seawater.
UNS C70600 copper-nickel alloy is annealed at 593 to 816°C (1100 to 1500°F). UNS C70600 copper-nickel alloy has good cold workability. It is suitable for high temperature environments.
UNS C70600 copper-nickel alloys are used in areas where stainless steel cannot be used due to chloride stress corrosion cracking (CSCC) and in other parts where high corrosion resistance is required. These alloys are also used as machined and forged valve and pump components for seawater service. Due to the presence of large amounts of manganese and iron, the C70600 (90/10) copper-nickel alloy is highly resistant to seawater corrosion. Suitable for marine condensers, copper-nickel alloy copper 90/10 and copper-nickel alloy copper 70/30 for seawater condenser systems, heating and water supply, chemicals, desalinators, etc.
Copper alloy UNS C70600 and C71500 are the standard specifications of seamless copper-nickel alloy tubes for water desalination plants.
However, alloys C70600 and C71500 are easily welded by the most common methods. consumables of alloy C71500 are applied to weld these two alloys. When welding copper-nickel to steel, 65% nickel-copper alloy consumables should be used because they can withstand more iron dilution in the steel than C71500 copper-nickel alloy consumables.

Chemical composition of UNS C70600 copper nickel alloys

Element Content (%)
Cu 88.7
Fe 1.3
Ni 10.0

Physical properties of UNS C70600 copper nickel alloys

Properties Metric Imperial
Density 8.94 g/cm3 0.323 lb/in3

Mechanical properties of UNS C70600 copper nickel alloys

Properties Metric Imperial
Tensile strength, ultimate 303-414 MPa 43900-60000 psi
Tensile strength, yield (depending on temper) 110-393 MPa 16000-57000 psi
Elongation at break (in 254 mm) 42.00% 42.00%
Machinability (UNS C36000 (free-cutting brass) = 100%) 20% 20%
Shear modulus 52.0 GPa 7540 ksi
Poisson’s ratio 0.34 0.34
Elastic modulus 140 GPa 20300 ksi

Corresponding Material Symbol

Material Designation Corresponding Material Symbol
GB/T8890 ASTM B111 BS2871 JIS H3300 DIN 1785
Copper-Nickel BFe10-1-1 C70600 Pipe CN102 C7060 CuNi10Fe1Mn
BFe30-1-1 C71500 Pipe CN107 C7150 CuNi30Mn1Fe
(BFe30-2-2) C71640 CN108 C7164 CuNi30Fe2Mn2
(BFe5-1.5-0.5) C70400
Aluminium Brass HAL77-2 C68700 Tube CZ110 C6870 CuZn20Al2
Admiralty Brass HSn70-1 C44300 Tube CZ111 C4430 CuZn28Sn1
Boric Brass Hsn70-18
HSn70-1 AB
Arsenical Brass H68A CZ126
Brass Tubes H65/H63 C28000/C27200 CZ108 C2800/C2700 CuZn36/CuZn37

Comparison table of International Standard Specifications for CuNi 90/10 C70600 Pipe
DIN 86019




UNS 7060X

BS 2871

CN 102



JIS H 3300




Ni% 9.0-11.0 10.0-11.0 10.0-11.0 9.0-11.0 9.0-11.0 9.0-11.0
Fe% 1.5-1.8 1.5-2.0 1.0-2.0 1.0-1.8 1.0-1.8 1.0-1.8
Mn% 0.5-1.0 0.5-1.0 0.5-1.0 Max.1.0 0.2-1.0 Max1.0
C% Max.0.05 Max.0.05 Max.0.05 Max.0.05   Max.0.05
Pb% Max.0.03 Max.0.01 Max.0.01 Max.0.02 Max.0.05 Max.0.02
S% Max.0.015 Max.0.02 Max.0.05 Max.0.02   Max.0.02
P% Max.0.02 Max.0.02   Max.0.02   Max.0.02
Zn% Max.0.15 Max.0.20   Max.0.50 Max.0.50 Max.0.05
Zr% Max.0.03          
Others Max.0.30 Max.0.30 Max.0.30      
Cu% Balance Balance Balance Balance




Outer diameter dimension and wall thickness table of Copper Nickel Tube

Outside Diameter Wall Thickness
DN OD Actual Standard Special
in mm mm WT kg/m WT kg/m
  4 8 1 0.2    
1/8 6 10 1 0.25    
1/4 8 12 1 0.31    
3/8 12 16 1 0.42 1.5 0.61
1/2 16 20 1 0.53 1.5 0.78
3/4 20 25 1.5 0.99 2 1.29
1 25 30 1.5 1.19 2 1.56
1 1/4 32 38 1.5 1.53 2 2.01
1 1/2 40 44.5 1.5 1.8 2 2.38
2 50 57 1.5 2.33 2 3.07
2 1/2 65 76 2 4.14 2.5 5.14
3 80 88.9 (89) 2 4.86 2.5 6.04
4 100 108 2.5 7.37 3 8.8
5 125 133 2.5 9.12 3 10.9
6 150 159 2.5 10.93 3 13.08
7 175 194 3 16.01    
8 200 219.1 (219) 3 18.12 3.5 21.09
10 250 267 3 22.13 4 29.4
12 300 323.9 (324) 4 35.76 5 44.56
14 350 368 4 40.69 5.5 55.72
16 400 419 4 46.39 6 69.25
18 450 457 4.5 56.92    

How to purchase copper nickel tubes?

Buying copper-nickel tubing can be a complicated process as there are many factors to consider and different types of tubing available on the market. In this article, we will provide a step-by-step guide on how to buy copper-nickel tubing, including tips on how to choose the right type of tubing and where to buy it.
Before we get started, it is important to understand what copper-nickel tubing is and why it is used. Copper-nickel, also known as white copper, is an alloy made up of copper and nickel and small amounts of other elements such as iron and manganese. This alloy is known for its high strength and corrosion resistance, making it ideal for use in a variety of applications.
A common use for copper-nickel tubing is in marine environments for pipes and other structures exposed to seawater. Copper-nickel is resistant to corrosion from seawater, making it an ideal material for these applications. Copper nickel tubing is also used in other applications such as heat exchangers, condensers and evaporators.
Now that you have a better understanding of copper-nickel tubing, let’s continue the process of buying them.

  1. Determine your needs: The first step in purchasing copper-nickel tubing is to determine your needs. Consider the application of the tubing and any specific requirements or specifications that need to be met. This will help you determine the type of cupro-nickel pipe that best fits your needs.
  2. Research suppliers: Once you know what you need, the next step is to research potential suppliers. Look for suppliers that have experience with copper-nickel tubing and can provide the type of tubing you need. Consider factors such as their reputation, product quality and pricing. It may also be helpful to read customer reviews or talk to others who have purchased copper-nickel tubing from the supplier to get a better idea of their experience.
  3. Request a quote: Once you have identified several potential suppliers, the next step is to request a quote. This will allow you to compare prices and determine which supplier will provide the best value for your needs. Be sure to provide detailed information on the type of copper-nickel tubing needed, including any specifications or requirements. This will help the supplier provide an accurate quote.
  4. Evaluate quotes: After receiving quotes from multiple suppliers, it’s time to evaluate the quotes and determine which one is best for your needs. Consider factors such as price, lead time and supplier reputation. If you have any questions or concerns, be sure to speak with the supplier to ensure you have all the information you need to make an informed decision.
  5. Place your order: Once you have selected a supplier and agreed to the terms of sale, it’s time to place your order. Be sure to provide the supplier with detailed instructions and any necessary specifications to ensure they will be able to supply the copper-nickel tubing you need. Keep in mind that tube fabrication and delivery may take some time, so be sure to plan accordingly.
  6. Review and inspect the tubes: When the copper-nickel tubes are delivered, make sure to review and inspect them to ensure they meet your expectations and requirements. If there are any questions or concerns, be sure to communicate with your supplier and work together to resolve them.

By following these steps, you can purchase copper-nickel tubing with confidence and be sure you are getting the right product for your needs. Remember, buying copper-nickel tubing is a major investment, so it is important to take the time to do your research and choose a reputable supplier.

China Copper-Nickel Pipes Manufacturer offers ASTM B111 UNS C70600 Copper Nickel Tube DN25 6M.

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