Copper Nickel Pipe Fittings manufacturer in India

Cuni Stub End, Reducer and Cupro Nickel Fittings manufacturer as per ASME B16.9/ B16.25

Copper Nickel Pipe Fittings manufacturer in India

A copper nickel pipe fitting is a moderate strength grade that plays an important role in characterizing the flow of media. Copper Nickel Pipe Fittings are employed to join dissimilar size items, route, and branch connections. These fittings are designed with primary constituents of nickel, copper, and ferrous with other constituting alloys. The Cupro Nickel Fittings have good corrosion resistance properties and work well in marine environments. The versatile fittings thereby have enhanced tolerance to pitting and crevice corrosion. Cuni Pipe Fittings have a crystalline structure and have lower internal stress. These fittings have excellent mechanical and physical properties. The ASME B16.9 Cuni Fittings are factory-made wrought fittings that are available in different dimensions to suit several project requirements. Cupro Nickel Pipe Fittings have lower macrofouling rates and possess good fabricability. These fittings are designed in either seamless or welded configurations. The Cupro Nickel Seamless Fittings are a single piece of metal that is produced via an extrusion process. The absence of welds allows for an even flow in the system. Cupro Nickel Welded Fittings are a reliable cost-effective alternative to seamless fittings that is produced as metal is rolled and subsequently welded in place. The Cunifer Buttweld Fittings are common welded fittings that are seen widely across different industries. These fittings can handle fluids and gases of a wide range of pressures or temperatures. We are a Copper Nickel Pipe Fittings manufacturer in India who have a vast stock of products of different sizes and shapes.

The Copper Nickel Tee is a common fitting that has three channels of which two are outlets, and one is an inlet. They can be availed in  either equal or reducing sizes. A Cupro Nickel Reducer is employed to reduce the size of large-bore size to a smaller one. These reducers ensure that there is no failure in the system due to uneven flow conditions. Cupro Nickel Cap seals the ends of the hydraulic system and prevents any natural contaminants from entering the grade. A Copper Nickel Collar is an adapter that helps connect one pipe to a system without requiring to punch or drill holes in the item. The Copper Nickel Stub End is a short piece of a pipe that is flared on one side, with the other one exhibiting a square-cut end. The Cupro Nickel Saddles are devices that support and transfer a load of pipe onto the support base. This prevents any vibration or bouncing. Sunflex Metal is a Copper Nickel Fittings manufacturer in India that utilize the best raw materials and cutting-edge technology to produce all our products.

Sunflex Metal has been formed in 1990 as a Copper Nickel Pipe Fittings manufacturers in India and since then has developed its strong reputation in supplying the right ASME B16.9 Copper Nickel Fittings. Ask for our Copper Nickel Pipe Fittings catalogue can help you to choose the ideal thing when seeking all kinds of Cuni pipe fittings made in India. This catalogue will cover specifications, weights and sizes of the Cupro Nickel Fitting that are available. The Machinability of Cuni Fittings (based on free-cutting brass = 100) is 20. Sunflex Metals stock a wide range of butt-weld fittings that conform to ANSI and military standards. We carry Copper Nickel Tee, Saddles, Reducer etc in Class 200 and Class 700 for high pressure.

Manufacturer & supplier of Cunifer Pipe Fittings, Copper Nickel Tee, and Cuni Saddles in India, view Cuni Fittings price list in Mumbai

Copper Nickel Pipe Fittings manufacturer in India

Copper Nickel Pipe Fittings

Cupro Nickel Fittings manufacturer in India

Cupro Nickel Fittings

Cuni Fittings

Cuni Fittings

Cupro Nickel Seamless Fittings

Cupro Nickel Seamless Fittings

Copper Nickel Tee

Copper Nickel Tee

Cupro Nickel Cross

Cupro Nickel Cross

Table of content

Copper Nickel Pipe Fittings Sizes

Dimensions standard  Size Thickness
ANSI/ ASME B16.9 1/2 inch - 72 inch
or Custom
Schedule 10, Sch 40, Sch 80, XS, XXS and SCH 160

What is Cupro Nickel Fittings?

The Tensile Strength of Cupro Nickel Fittings (rolled-H04 for flat products/ hard drawn-H80 for tubing) is 78000 psi (538 MPa). These Cuni Fittings has a Tensile Strength (annealed) of 52000 psi (359 MPa). Copper-Nickel Pipe Fittings are used in various application areas such as pipelines in shipbuilding, oil coolers, electrical resistors, steam turbine condensers, sprung contacts in relays, plug connectors and switches, auxiliary cooling systems and in a large number of cryogenic applications. The Chemical Composition of Copper Nickel Pipe Bend is Cu 71.25-76.5, Fe ≤ 0.20, Pb ≤0.050, Mn ≤ 1.0, Ni 23.5-26.5 and Zn ≤ 1.0. The Molecular Formula of Copper nickel is ‎CuNi. Wall thickness chart help to select the various specifications and thickness of the various types of Cupro Nickel Long Stub that are available. The Thermal Expansion Co-efficient of Copper Nickel Pipe Fittings (@20-300°C/68-572°F) is 9.00 µin/in °F (16.2 µm/m °C). ANSI B16.9 Cu-Ni Welded Buttweld Fittings has a Shear Modulus (C71500 annealed) of 8300 ksi (57.2 GPa). Cupro Nickel 5D Bend are also used in conveying brackish water, clean seawaters and fresh water. Copper Nickel Bellmouth Fittings are also used in fasteners, boat hulls and in heat exchangers. Such Cuni Pipe Fittings also find use in high pressure pre-heaters at fossil fuel power plants and nuclear power plants and Copper Nickel Fuel Pipe Fittings for fuel systems.

Cupro Nickel Pipe Fittings Specifications

NACE MR 0175 certified Cuni Pipe Fittings and Cupro Nickel Equal Tee Fittings at factory price in India

Standard Specification MSS-SP97, DIN86088, DIN28011, EEMUA-146, DIN86090, MSS-SP43, MIL-T-16420K, ASME-B16.9
Trade Name Copper Nickel Pipe Fittings
Other Trade Name Cupro Nickel, Cunifer, Cuni
Pressure Rating
  • 10Bar, 14BAR, 16BAR, 20BAR
  • MIL-T-16420K: Class 200, Class 500, Class 700
  • PN10, PN14
Manufacturing size range of Copper Nickel Buttweld Fittings 1/2" - 24"
OD 20 - OD 508
or custom sizes
Thickness 1.5 to 15mm
Schedule Sizes SCH5/ 5S, SCH10/ 10S, SCH40/ 40S, STD, SCH80, SCH160
Material Test Certificates (MTC) All Copper Nickel Pipe Fittings material supplied with MTC EN 10204 3.1, 3.2
Specialized in manufacturing
  • Cuni Butt Welding Fittings
  • Cuni Outlets
    Weld base ground for full penetration weld per MIL-STD-22D (P68 joint)
    MSS SP-97.
  • Pilot and Non-Pilot Bosses
    NAVSEA 810-1385912
  • 45° Lateral Outlet
  • Elbow Outlet
  • Sanitary Hose Barb Outlets
  • Cuni Stub Ends & Bosses
  • Straight Thermowell Tees
  • Cuni Bellmouth Fittings
  • Concentric Street Reducers
  • Cuni Collar
  • Long Turn Tees, Single /Double Sweep -NAVSEA 810-1385880, Revision D

Manufacturing Standard

    NAVINIC 10® CuNi10Fe1Mn NAVINIC 30® CuNi30Mn1Fe
STF 330430 / C113
DIN28011 / DIN86087 / DIN86088 / DIN86089 / DIN86090
2.0872 / 2.1972
.10 / .11 / O / O60 / M .10
ANSI B16.9 / ANSI B16.28
UNS C70600 / C70610 / C70620 UNS C71500 / C71520
O / O60 O / O60


Cunifer Pipe Fittings Price List

Copper Nickel Fittings manufacturer in India offers Cupro Nickel Reducing Tee, Collar, Reducer in all sizes at factory price
Manufacturing Type Manufacturing Size Price List in India
Copper Nickel Reducing Tee 159mm * 44.5mm * 3.0/2.0 mm FOB Price: US $ 20 - US $ 26 per Kg
Cuni Buttweld Tee, Reducing 76.1 mm * 38mm * 3.0/2.0mm FOB Price: US $ 30 - US $ 34 per Kg
Cunifer Tee, Reducing Size in mm: 219.1 * 4/108 * 3 FOB Price: US $ 35 - US $ 36 per Kg
Cuni Tee Fittings, BW, Reducing 76.1 mm * 44.5mm * 3.0/2.0mm FOB Price: US $ 20 - US $ 23 per Kg
Cupronickel Tee, Buttweld, Reducing 133 * 76.1MM * 3.0/2.5MM FOB Price: US $ 20 - US $ 21 per Kg
Cu-Ni Buttweld Tee Fittings, Reducing 159 * 57MM * 3.0/2.0MM FOB Price: US $ 27 - US $ 28 per Kg
Copper Nickel Alloy Tee Fittings, Buttweld, Reducing 76.1 * 44.5MM * 3.0/2.0MM  FOB Price: US $ 33 - US $ 34 per Kg
Cupro Nickel Tee, Buttweld Type, Reducing 133 * 108/3 * 3MM BW RED.TEE FOB Price: US $ 19 - US $ 20 per Kg
Kunifer Buttweld Reducing Tee 133 * 88.9MM * 3.0/3.0MM FOB Price: US $ 20 - US $ 22 per Kg
Cupronickel Reducer, concentric DN150 * DN100 FOB Price: US $ 25 - US $ 26 per Kg
Copper Nickel Reducer, concentric DN100 * DN80 FOB Price: US $ 35 - US $ 40 per Kg
Cuni Fittings 159,0 X 2,5 MM FOB Price: US $ 20 - US $ 22 per Kg

Types of Copper Nickel Pipe Fittings

Cuni Reducer

Cuni Reducer

  • Cu-Ni Pipe Reducer
  • Cuni Alloy Concentric Reducer
  • Cupro Nickel Eccentric Reducer
  • Kunifer Buttweld Reducer
Cupronickel Tee

Cupronickel Tee

  • Cupronickel Saddle Tee
  • Cuni Reducing Tee
  • Cupronickel Lateral Tee
  • Cunifer Equal Tee
Cu-Ni Cap

Cu-Ni Cap

  • Cuni End Cap
  • ASME B16.9 Cupronickel Cap Fittings
  • Cu-Ni Buttweld Cap
  • Cunifer Pipe Cap
Copper Nickel Alloy Stub End

Copper Nickel Alloy Stub End

  • Cu-Ni Short Stub end
  • Kunifer Long Stub end
  • Cupronickel Type A Stub End
  • MSS-SP-43 Cu-Ni Buttweld Stub End
Cupro Nickel Bend

Cupro Nickel Bend

  • Cu-Ni Return Bend
  • Cunifer Pipe Bend
  • Cuni 180 Degree Bend
  • Cupronickel Hot Induction Bend
Kunifer Cross

Kunifer Cross

  • Cu-Ni Reducing Cross
  • Cunifer Buttweld Cross
  • Cu-Ni Unequal Cross
  • Kunifer Equal Cross
Cupronickel Collar

Cupronickel Collar

  • Cu-Ni Buttweld Collar
  • Cu-Ni Collar Fittings
  • Cunifer Butt Weld Collar
  • Cuni Seamless Collar
Copper Nickel Saddle

Copper Nickel Saddle

  • Cupronickel Pipe Saddle Clamp
  • Cu-Ni Butt Weld Saddle
  • Cu-Ni Saddle Tee
  • Cu-Ni Hot Tap Saddle
Cupro Nickel Buttweld Fittings

Cupro Nickel Buttweld Fittings

  • 16bar Kunifer Fittings
  • 20bar Cupronickel Fittings
  • Class 200 Cu-Ni Fittings
  • Class 500 Cu-Ni Fittings
  • Class 700 Cunifer Fittings

Available forms

NAVSEA 810-1385880 Rev D
  • Elbows
  • Long Radius 90°
  • Long Radius 45°
  • Short Radius 90°
  • Long Radius Reducing 90°
  • 180° Long Radius Return Bends
  • Tees
  • Straight
  • Reducing
  • Long Turn, Single Sweep
  • Long Turn, Double Sweep
  • Reducers
  • Concentric
  • Eccentric
  • Sleeves, Class 200 and 50
  • 45° Laterals
  • Caps
  • ASME Flanged and Dished Heads
  • Lap-Joint Stub Ends
  • Collar

Copper Nickel Tee Sizes

Copper Nickel Tee manufacturer in India
Copper Nickel Tee Sizes

Cuni Tee Fitting Dimensions

Copper Nickel Tee Dimensions

Copper Nickel Collar dimensions

Copper Nickel Collar manufacturer in India
Copper Nickel Collar dimensions

Cupronickel Reducer Fittings Dimensions

Copper Nickel Reducer Dimensions

Copper Nickel Stub End dimensions

Copper Nickel Stub End manufacturer in India
Copper Nickel Stub End dimensions

Copper Nickel Pipe Fittings Tolerances

Copper Nickel Pipe Fittings Tolerances

Copper Nickel Alloy Butt Weld Fittings Standard


Most important tests for Copper Nickel Pipe Fittings should perform by manufacturers

Manufacturer of all types of Cupro Nickel Buttweld Fittings such as Copper Nickel Collar, Stub End, Cap in India. Manufacturing Copper Nickel Stub End as per DIN, BS/ EN, JIS, NES, MIL, ISO, SAE standards
Destructive Testing Non Destructive Testing
  • Method A - ASTM G48
  • Method C - ASTM G48
  • Method B - ASTM G28
  • ASTM A262 Practice E Corrosion Test
  • Ferrite Determination to ASTM E562
  • Hardness Testing
  • Charpy Impact Testing
  • Tensile Testing to Applicable Specification
  • Metallography
  • Ultrasonic Testing (UT)
  • Radiography
  • Liquid Dye Penetrant Testing (DPI)
  • Product Material Identification (PMI)
  • Niton XL2 980 Goldd Alloy Analyzer
  • Fischer Ferrite Testing

Application of Copper Nickel Pipe Fittings

Application of Copper Nickel Pipe Fittings
  • Shipbuilding
  • Desalinization
  • Heat Exchanger
  • Offshore
  • Power Generation
  • Condenser

Temperature and working pressure of Kunifer Fittings

Type of Copper Nickel fitting Size range 16 bar rating Copper Nickel fitting 20 bar rating Copper Nickel fitting
    38˚C 50˚C 75˚C 100˚C 38˚C 50˚C 75˚C 100˚C
Cupro Nickel Butt Weld fittings 1 inch - 4 inch
30mm - 108mm
Use 20 bar 20.0 19.7 18.6 17.3
Cunifer Butt Weld fittings 6in - 36in/
159mm - 914mm
16.0 16.0 16.0 15.7 20.0 19.7 18.6 17.3
Cuni Socket weld fittings ½in/ - 2in
16mm - 57mm
Use 20 bar 20.0 19.7 18.6 17.3
Cupronickel Capillary brazed fittings ½in/ - 2in
16mm - 57mm
20.0 19.7 18.6 17.3
Cu-Ni Compression fittings ½in/ - 2in
16mm - 57mm
- - - -

Copper Nickel Pipe Fittings Chemical Composition

Cupro Nickel Fittings EEMUA 146, MSS SP97, MSS SP43
Element Min Max
Carbon - 0.050
Manganese 0.500 1.000
Phosphorus - 0.020
Sulphur - 0.020
Nickel 10.000 11.000
Copper Rem -
Lead - 0.010
Iron (Fe) 1.500 2.000
Zinc - 0.200
Total Impurities (other than copper (including silver) iron, nickel (including cobalt) and manganese) - 0.300

Cupro Nickel End Cap Dimensions and Weight Chart

Copper Nickel End Cap Dimensions