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Copper Nickel Pipes & Copper Nickel Tubes

HomeCopper Nickel ProductsCopper Nickel Pipes & Tubes

Kalpataru Piping is a top Copper Nickel Pipes & Tubes in India, which is involved in supplying high quality copper nickel products at competitive prices. Our Copper Nickel Seamless Tubes are produced using hot billets and have no joints, hence they are stronger, accurate in dimensions and have high pressure handling capacity. These tubes possess tensile strength of about 43,900 psi to 60 000 psi and yield strength of about 16 000 psi to 57 000 psi and can be used in harsh industrial applications.

We also provide ASME SB552 Copper Nickel Welded Tubes, which are made by welding quality copper nickel sheets or coils. They are inexpensive, long-lasting and come in schedules of Sch 5 to Sch 160. The copper-nickel tubes ASTM B466 that we have provided have good ductility. These tubes come with single random length, two random length and custom cut lengths. The Copper Nickel Pipes and Tubes that we supply are all manufactured by adhering to national and international standards. Our competent workforce employs technologically superior technology and high-quality raw materials to produce products of high quality as required. We also provide the customization of chemical composition, size, shape, and finish to particular project requirements. Please contact our team in case of technical questions or price information.

About Copper Nickel Pipes and Tubes

Copper nickel alloy, or cupronickel as it is commonly referred to, is a versatile material composed mainly of copper with moderated additions of nickel, iron, manganese, as well as other elements. The copper nickel alloys, even though they have a significant amount of copper, still have a unique silver look, and that is why they can be used for functional and aesthetical purposes. Copper nickel pipes and tubes are used in marine applications for manufacturing of propellers, propeller shafts, and boat hulls as they resist seawater corrosion and biofouling. Copper nickel condenser tubes find extensive application in petrochemical facilities, power generation facilities, electrical systems and defence systems. When cupro nickel tubing is provided in an annealed state it has a natural resistance to macrofouling, high tensile strength, and high ductile characteristics. These tubes preserve their mechanical properties to cryogenic temperatures and offer antimicrobial surface properties and so, are applicable in hygienic and critical fluid-handling systems.

Grades of copper nickel pipes and tubes are C70600 (90/10), C71500 (70/30) and other combinations depending on the proportion of copper and nickel. Copper Nickel 90/10 pipes are used in seawater applications, whereas Copper Nickel 70/30 pipes have more strength, better oxidation resistance, and work better in high temperature and high velocity environment. Copper nickel tubes are also offered in a large variety of sizes, wall thicknesses, and specifications to suit a wide variety of industrial requirements. The supply may be in form of copper nickel pipes and tubes that have a seamless quality finishing which guarantees consistency in the performance of products in extreme operating environments.

 

Copper Nickel Pipe & Tubes Grades

Copper Nickel 70/30 Pipes And Copper Nickel 70/30 Tubes

Copper Nickel 90/10 (UNS C70600), which contains approximately 90% copper and 10% nickel with small additions of iron and manganese. This grade offers excellent resistance to seawater corrosion, good thermal conductivity, and easy fabrication.

Copper-Nickel 90/10 Pipes And Copper-Nickel 90/10 Tubes

Copper Nickel 70/30 (UNS C71500), consisting of about 70% copper and 30% nickel. This grade provides higher strength, superior resistance to erosion and oxidation.

Copper Nickel Pipe Specification

Cupro Nickel Pipe Specification ASTM B 466 ASME SB 466 / ASTM B 467 ASME SB 467
Cupro Nickel Seamless Pipe size 4 to 219mm W. T.: 0.5 to 20mm
Copper Nickel Welded Pipe size 5.0 mm – 1219.2 mm
Cupro Nickel EFW Pipe size 5.0 mm – 1219.2 mm
Copper Nickel Pipe Schedule SCH5, SCH10, SCH40, STD, SCH80, SCH160
Copper Nickel Pipe Form Hollow, Square, Round, Rectangular , Straight Pipes, Hydraulic Etc.
Sizes
  • Copper Nickel Round Pipe
    Wall thickness: 0.2mm~120mm
    Outside Diameter: 2mm~910mm
  • Copper Nickel Square Pipe
    Wall thickness: 0.2mm~120mm
    Size: 2mm*2mm~1016mm*1016mm
  • Copper Nickel Rectangular Pipe
    Wall thickness: 0.2mm~910mm
    Size: 2mm*4mm~1016mm*1219mm
Copper Nickel Pipe Hardness 1/16 hard, 1/8 hard, 3/8 hard, 1/4 hard, 1/2hard, full hard, soft etc
Test
  • Hardness Test
  • Mechanical Testing Such as Tensile of Area
  • Flattening Test
  • Flaring Test
  • Chemical Analysis – Spectro Analysis
  • Pitting Resistance Test
  • Positive Material Identification – PMI Testing
  • Micro and MacroTest
  • Intergranular Corrosion (IGC) Test
Copper Nickel Pipe Length Single Random, Double Random & Cut Length.
Our Presence USA, Canada, Australia, UK, Malaysia, Poland, Iran, Italy, Singapore, UAE
CuNi Pipe Finish Mill, polished, bright, oiled, hair line, brush, mirror, sand blast, or as required.
Marking All Copper Nickel Pipes are marked as follows: Standard, Grade, OD, Thickness, Length, Heat No. (Or according to the customer’s request.)
Copper Nickel Pipe Application
  • The Copper Nickel Pipe are made of pure electrolysis copper.
  • Copper Nickel straight pipes can be used for oil transportation, brake pipes, water pipes and gas pipes for construction.
  • They are precise in size and smooth on surface. Besides,
  • Thus, they are widely used for heat exchangers, radiators, coolers, electro-heat-up pipe, Air conditioner and refrigerators.
  • Copper Nickel Pipe are of good heat conductibility.
Material Test Certificates (MTC) Material Test Certificates (MTC) as per EN 10204 3.1 and EN 10204 3.2
Cupro Nickel Pipe End Plain End, Beveled End, Treaded.
Specialized in Large Diameter Cupro Nickel Pipe
We can also cut, thread, and groove Copper Nickel Pipes to meet your specifications.

American standard and specification of Copper Nickel Pipe manufacturers

ASTM B469 Seamless Copper Alloy Tubes for Pressure Applications
ASTM B466 Seamless Copper Nickel Pipe suppliers
ASTM B552 Seamless & Welded Cupro Nickel Tube suppliers for Water Desalting
ASTM B543 Welded Copper & Copper Alloy Heat Exchanger Tube
ASTM B608 Welded Copper Nickel Tube/ Pipe
ASTM B467 Welded Cupro Nickel Pipe manufacturer India
ASTM B111 Copper & Copper Alloy Seamless Condenser Tubes & Ferrule Stock
ASTM B359 Copper & Copper Alloy Seamless Condenser & Heat Exchanger Tubes with Integral Fins

Various types of Copper Nickel Pipe

Copper Nickel Alloy Pipe

Copper Nickel Alloy Pipe

Copper Nickel Heat Exchanger Tube

Copper Nickel Heat Exchanger Tube

Copper Nickel Tube

Copper Nickel Tube

Cunifer Pipe

Cunifer Pipe

Eemua 146 Cuni Pipe

Eemua 146 Cuni Pipe

ASTM B466 Cupro Nickel Pipe

ASTM B466 Cupro Nickel Pipe

Equivalent Grades of Copper Nickel Alloy Tube

STANDARD WERKSTOFF NR. UNS
Copper Nickel 90/10 2.0872 C70600
Copper Nickel 70/30 2.0882 C71500

Copper Nickel (CuNi Pipe) Composition Chart

Grade Cu Mn Pb Ni Fe Zn
Cu-Ni 90-10 88.6 min 1.00 max 0.5 max 9-11 max 1.8 max 1.00 max
Cu-Ni 70-30 65.0 min 1.00 max 0.5 max 29-33 max 0.4-1.0 1.00 max

Cu-Ni Tubes Physical Properties

Grade Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Cu-Ni 90/10 0.323 lb/in3 at 68 F 2260 F 50000 psi 20000 psi 30 %
Cu-Ni 70/30 0.323 lb/in3 at 68 F 2260 F 50000 psi 20000 psi 30 %

Copper Nickel Pipe Weight Per Foot

Knowing the exact weight per foot of Copper Nickel Pipes is essential for project planning, material handling, and cost estimation. The weight depends on the pipe’s outer diameter, wall thickness, and alloy grade. For quick and accurate calculations, use our Pipe & Tube Weight Calculator to determine the precise weight of Copper Nickel Pipes and Tubes for your project requirements.

Outside diameter of pipe EEMUA 144
16 bar 20 bar
ØD Wall Theoretical Wall Theoretical
thickness weight thickness weight
nominal actual actual   actual  
inch ND mm mm Kg/m mm Kg/m
0.125   10 1 0.26 1 0.26
0.25   12 1 0.31 1 0.31
0.38 10 16 2 0.79 2 0.79
0.5 15 20 2 1.01 2 1.01
0.75 20 25 2 1.3 2 1.3
1 25 30 2.5 1.93 2.5 1.93
1.25 32 38 2.5 2.5 2.5 2.5
1.5 40 44.5 2.5 2.95 2.5 2.95
2 50 57 2.5 3.83 2.5 3.83
2.5 65 76.1 2.5 5.17 2.5 5.17
3 80 88.9 2.5 6.07 2.5 6.07
4 100 108 3 8.85 3 8.85
5 125 133 3 10.95 3 10.95
6 150 159 3 13.14 3.5 15.29
7 175 193.7 3 16.07 3.5 18.7
8 200 219.1 4 24.17 4.5 27.12
10 250 267 4.5 33.18 5.5 40.39
12 300 323.9 5.5 49.18 7 62.3
14 350 368 6.5 65.99 8 80.89
16 400 419.1 7 81 9 103.64
18 450 457.2 8 100.93 9.5 119.45
20 500 508 8.5 119.24 11 153.54
24 600 610 10.5 176.79 13 217.97
28 700 711 12 235.58 15 293.22
32 800 813 13.5 303.14 17 380.06
36 900 914 15.5 391.14 19 477.6

Copper (CuPro) Nickel Pipe Schedule Chart

1/8″ IPS(.405″ O.D.) 3 1/2″ IPS( 4.000″ O.D.)
SCH 40, 80 SCH 10, 40, 80, 160, XXH
1/4″ IPS(.540″ O.D.) 4″ IPS(4.500″ O.D.)
SCH 10, 40, 80 SCH 10, 40, 80, 160, XXH
3/8″ IPS(.675″ O.D.) 5″ IPS( 5.563″ O.D.)
SCH 10, 40, 80 SCH 10, 40, 80, 160, XXH
1/2″ IPS(.840″ O.D.) 6″ IPS(6.625″ O.D.)
SCH 5, 10, 40, 80, 160, XXH SCH 5, 10, 40, 80, 120, 160, XXH
3/4″ IPS(1.050″ O.D.) 8 ” IPS(8.625″ O.D.)
SCH 10, 40, 80, 160, XXH SCH 5, 10, 40, 80, 120, 160, XXH
1″ IPS:(1.315′ O.D.) 10″ IPS(10.750″ O.D.)
SCH 5, 10, 40, 80, 160, XXH SCH 10, 20, 40, 80 (.500), TRUE 80(.500)
1-1/4″ IPS(1.660″ O.D.) 12″ IPS(12.750″ O.D.)
SCH 10, 40, 80, 160, XXH SCH 10, 20, 40(.375), TRUE40(.406), SCH80(.500)
1-1/2″ IPS(1.900″ O.D.) 14″ IPS(14.000″ O.D.)
SCH 10, 40, 80, 160, XXH SCH10 (.188), SCH40 (.375)
2″ IPS(2.375″ O.D.) 16″ IPS(16.000″ O.D.)
SCH 10, 40, 80, 160, XXH SCH10(.188), SCH40(.375)
2 1/2″ IPS(2.875″ O.D.) 18″ IPS (18.000″ O.D.)
SCH 10, 40, 80, 160, XXH SCH-40 (.375)
3″ IPS( 3.500″ O.D.)  
SCH 5, 10, 40, 80, 160, XXH  

Copper Nickel (CuNi) Pipe Pressure Rating

Tube O.D.(in.) Wall Thickness of Tube (inches)
.028 .035 .049 .065 .083 .095 .109 .120
Working Pressure (psig)
1/8 7900 10100            
1/4 3700 4800 7000 9500        
5/16   3700 5400 7300        
3/8   3100 4400 6100        
1/2   2300 3200 4400        
3/4     2200 3000 4000 4600    
1       2200 2900 3400 3900 4300

Copper Nickel (CuNi) Tube Pressure Rating

Maximum Allowable Working Pressure (PSIG)

Tube O.D.
in.
Wall Thickness of Copper Nickel Tube (inches)
.028 .030 .035 .049 .065 .083 .095 .109 .120 0.134
Working Pressure (psig)
1/8 2700 3000 3600              
3/16 1800 1900 2300 3400            
1/4 1300 1400 1600 2700 3500          
5/16     1300 2200 2700          
3/8     1000 1600 2200          
1/2     800 1100 1600 2100        
5/8       900 1200 1600 1900      
3/4       700 1000 1300 1500 1800    
7/8       600 800 1100 1300 1500    
1       500 700 900 1100 1300 1500  
1 1/8         600 800 1000 1100 1300 1400 

Copper Nickel (CuPro Nickel) Heat Exchanger Tube Pressure Rating

O.D.(in.) Wall Thickness of Tube (inches)
.028 .035 .049 .065 .083 .095 .109 .120
Working Pressure (psig)
1/8 7900 10100            
1/4 3700 4800 7000 9500        
5/16   3700 5400 7300        
3/8   3100 4400 6100        
1/2   2300 3200 4400        
3/4     2200 3000 4000 4600    
1       2200 2900 3400 3900 4300

Cupro Nickel Pipe Dimension Tolerance

Dimension Tolerance
Material Ultimate Tensile Strength1000 psi (MPa) Yield Strength 0.5% Ext.under Load 1000 psi (MPa) YElongation % in 2 in. Fatigue Strength (10×7 cycles) 1000 psi (MPa) Burst Pressure* 1000 psi (MPa)
Copper-brazed Steel 48-55 (0.330-0.380) 28-34 (0.190-0.235) 30-40 30(0.210) 19.5 (0.135)
C12200-Phosphorus deoxidized Copper 32-38 (0.220-0.265) 10-14 (0.070-0.100) 45-60 10 (0.070) 12 (0.083)
C70600-Copper Nickel 90-10 48-54 (0.330-0.370) 16-22 (0.110-0.150) 40-55 15 (0.100) 19(0.130)

Copper Nickel Seamless Pipes Wall Thickness

NPS O.D. I.D. Wall Thickness
K L M DWV K L M DWV
1/4″ 3/8″ 0.305 0.315 0.035 0.030
3/8″ 1/2″ 0.402 0.430 0.450 0.049 0.035 0.025
1/2″ 5/8″ 0.527 0.545 0.569 0.049 0.040 0.028
5/8″ 3/4″ 0.652 0.666 0.049 0.042
3/4″ 7/8″ 0.745 0.785 0.811 0.065 0.045 0.032
1″ 1-1/8″ 0.995 1.025 1.055 0.065 0.050 0.035
1-1/4″ 1-3/8″ 1.245 1.265 1.291 1.295 0.065 0.055 0.042 0.040
1-1/2″ 1-5/8″ 1.481 1.505 1.527 1.541 0.072 0.060 0.049 0.042
2″ 2-1/8″ 1.959 1.985 2.009 2.041 0.083 0.070 0.058 0.042
2-1/2″ 2-5/8″ 2.435 2.465 2.495 0.095 0.080 0.065
3″ 3-1/8″ 2.907 2.945 2.981 3.030 0.109 0.090 0.072 0.045

Application Industries for Cupro Nickel Tubes

  • High Capacity Power Plants
  • Heat Condensers & Exchangers
  • Ship Building & Ship Repairs
  • Distiller Tubes
  • Evaporators & Ferrules
  • Desalination Plants
  • Power Plants
  • Refineries
  • Defence

Documentation You Can Expect with Your Copper Nickel Tube Order

To buy Copper Nickel Tubes & Pipes,  connect with the trusted copper nickel pipes & tubes suppliers & manufacturers where full documentation should be issued to get quality, compliance and traceability. Typical documents include:

  1. Material Certificate: These certificates attest to the fact that the Copper Nickel Tubes are of international standards like ASTM or ASME. They give comprehensive data of the chemical composition and mechanical property of the material.
  2. Test Reports: Test reports can also contain tensile strength, hardness, and corrosion resistance tests, which prove that the tubes are at the necessary quality and performance standards.
  3. Shipping Documents: Papers such as the bill of lading, invoice, packing list and shipping information give a full history of your order and also assist in tracing the shipment of the manufacturer to the location where you receive them.
  4. Welding Certificate and Inspection Certificate: In the case of welded Copper Nickel Tubes, such certificates confirm that the welding and inspection were done in line with industry standards and hence the structural integrity and reliability.
  5. Warranty Information: Authoritative manufacturers of copper nickel pipes will have warranty information on defects or performance failure and hence you will be assured on the lifespan of your tubes.
  6. Compliance Certificates: When you are using tubes used in the marine or offshore or any other regulated use, then compliance certificates are used to assure that products are in line with the required industry regulations and standards.

Frequently Asked Questions About Copper Nickel Pipes & Tubes

What are Copper Nickel Pipes?
Copper Nickel Pipes are made from a copper-nickel alloy that combines excellent corrosion resistance with high strength, making them ideal for marine, offshore, and industrial piping applications.
What grades of Copper Nickel Pipes are available?
The most common grades are 90/10 Cu-Ni (90% copper, 10% nickel) for moderate corrosion resistance and 70/30 Cu-Ni (70% copper, 30% nickel) for superior resistance in harsher environments.
Are Copper Nickel Pipes stronger than regular copper pipes?
Yes, Cu-Ni alloys are stronger than standard copper and offer better resistance to oxidation, erosion, and mechanical stress at elevated temperatures.
Can Copper Nickel Pipes be welded?
Yes, Copper Nickel Pipes can be welded using GMAW with deoxidized filler metals and proper preparation. Welding requires tack welding, controlled heat treatment, and post-weld finishing for best results.
What are the key benefits of Copper Nickel Tubes?
  • Excellent corrosion resistance, especially in seawater
  • High tensile strength and durability
  • Good thermal conductivity for heat exchangers
  • Resistance to biofouling and mechanical stress
  • Suitable for high-pressure and high-temperature applications
Can Alloy 20 pipes be welded easily?
Yes, Alloy 20 is easily weldable. These are aided by niobium to inhibit the occurrence of carbide precipitation and intergranular corrosion during welding.
What tests are performed on Alloy 20 pipes and tubes?
Common tests include hardness testing, flattening and flaring tests, IGC testing, pitting resistance testing, PMI testing, and visual and dimensional inspections.
Why choose Copper Nickel Pipes for marine applications?
Cu-Ni alloys resist seawater corrosion, macrofouling, and oxidation, making them highly reliable for shipbuilding, offshore platforms, and coastal water systems.

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