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Copper Nickel Flanges

copper-nickel-forged-fitttings1

Copper Nickel Alloy Forged Flanges, Copper Nickel Socket Weld Flanges, ASME SB564. Supplier of Copper Nickel Lap Joint Flanges, ASTM B564. Copper Nickel Threaded Flanges, Copper Nickel Orifice Flanges, Cupronickel 70/30 Ring Joint Flanges, Copper Nickel Alloy UNS C70600 Plate Flanges, Copper Nickel 70/30 WNRF Flanges Manufacturer, Copper Nickel UNS C71500 Flanges, Copper Nickel 90/10 Flanges Cupronickel 90/10 RTJ Flange, Copper Nickel Spacer Flange, and Copper Nickel Lap Joint Flanges Supplier.

Overview

Dhodi Metal Industries is one of the leading manufacturers, suppliers, and exporters of Copper Nickel Alloy Flanges. We offer these pipe flanges in a variety of shapes, sizes, diameters, material grades, and other criteria. We manufacture Copper Nickel Alloy Flanges using high-quality materials and modern manufacturing procedures and offer them to both domestic and worldwide markets.

Copper Nickel 90/10 and 70/30 alloy flanges are indeed well-regarded for their unique properties, making them highly suitable for demanding environments like seawater systems, desalination plants, and marine engineering. Copper Nickel 90/10 Alloy Flanges are very resistant to seawater corrosion because to the high manganese and iron content. Similarly, Copper Nickel 70/30 Alloy Flanges are highly durable and resistant to heat and corrosion. We make a wide range of flanges, including Copper Nickel Slip On Flanges, Copper Nickel Orifice Flanges, Copper Nickel Threaded Flanges, Copper Nickel Spacer Flanges, Copper Nickel Lap Joint Flanges, and more.

Copper nickel flanges are integral parts of piping systems, often used to connect pipes, valves, pumps, and other equipment. Known for their high resistance to corrosion, especially in seawater and marine environments, copper nickel flanges are favored in industries like marine, desalination, oil and gas, and power generation.

Copper nickel flanges are typically made from two main grades of copper-nickel alloys: Cu-Ni 90/10: Composed of 90% copper and 10% nickel, suitable for seawater applications and less demanding environments. Cu-Ni 70/30: Composed of 70% copper and 30% nickel, offering superior strength and corrosion resistance, particularly in harsh marine environments.

Common Types of Copper Nickel Flanges:

  1. Copper Nickel Weld Neck Flanges: These flanges have a long tapered hub and are welded to the pipe. They are ideal for high-pressure applications.
  2. Copper Nickel Slip-On Flanges: Slip over the pipe and are welded both inside and outside for a secure fit. Commonly used in low-pressure applications.
  3. Copper Nickel Socket Weld Flanges: Have a recessed area where the pipe fits into, and a single fillet weld is used to connect the flange and pipe.
  4. Copper Nickel Blind Flanges: Used to close off piping systems or vessels and can be removed when needed for maintenance.
  5. Copper Nickel Lap Joint Flanges: Work with stub end fittings and are used in systems where frequent dismantling is needed.
  6. Copper Nickel Threaded Flanges: Threaded to attach to pipes without welding, commonly used in lower pressure applications.

Specification Of Copper Nickel Flanges

Standard Specification ANSI-B16.5, DIN-86037, BS-1560, MSS-SP-44, B16.47A/B, EEMUA-145, ASTM / ASME SB 61 / 62 / 151 / 152, EN1092-1, BS 10 TABLE FLANGES, AWWA, BS4504, BS3293, JIS, DIN
Grades Copper Nickel 90/10 Flanges (C70600 ), Cupro Nickel 70/30 Flanges (C71500), UNS C71640
Size 1/2″ 36″
Class / Pressure 2500#, 1500#, PN25, 600#, 150#, PN6, 300#, PN64, PN10, 900#, PN40, PN16 etc.
Flange Face Type Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)
Flange Type Ring, Disk, Plate, Weld-Neck, Slip-On, Socket-Weld, Lap-Joint, Orifice, Reducing, Blind, Loose, Thread etc.
Pressure Rating 10Bar, 14BAR, 16BAR, 20BAR, Class 150, 300, 400, 600, 900, 1500, 2500, PN10, PN14
Manufacturing size range of Copper Nickel Flange 1/2″ up to 36″
Thickness 5s to XXS
Material Test Certificates (MTC) All Copper Nickel Flange material supplied with MTC EN 10204 3.1, 3.2
Flange Face TG, M, F, FF, RTJ, MF, G, T, RF
Flange Size DN10—DN2000, or Customized as per customer Drawing
Flange Pressure 150 – 20000 LBS, PN6 – PN400
Copper Nickel Flanges Standard ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.

Cupro Nickel Flanges Types

Copper Nickel Flanges Equivalent Grades

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

Copper Nickel Flanges Chemical Composition

Grade Cu Pb Mn Fe Zn Ni
Cupro Nickel 90/10 88.6 min .05 max 1.0 max 1.8 max 1 max 9-11 max
Cupro Nickel 70/30 65.0 min .05 max 1 max 0.4-1.0 1 max 29-33

Cupro-Nickel Flanges 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 %

Cupro Nickel Flanges Dimensions

NPS
(in.)
Cupro Nickel Flange Dimensions
Dia. of
Flange
(in.)
No.
of
Bolts
Dia. of
Bolts
(in.)
Dia. of
Bolt Holes
(in.)
Bolt
Circle
(in.)
1/4 3-3/8 4 1/2 0.62 2-1/4
1/2 3-1/2 4 1/2 0.62 2-3/8
3/4 3-7/8 4 1/2 0.62 2-3/4
1 4-1/4 4 1/2 0.62 3-1/8
1-1/4 4-5/8 4 1/2 0.62 3-1/2
1-1/2 5 4 1/2 0.62 3-7/8
2 6 4 5/8 0.75 4-3/4
2-1/2 7 4 5/8 0.75 5-1/2
3 7-1/2 4 5/8 0.75 6
3-1/2 8-1/2 8 5/8 0.75 7
4 9 8 5/8 0.75 7-1/2
5 10 8 3/4 0.88 8-1/2
6 11 8 3/4 0.88 9-1/2
8 13-1/2 8 3/4 0.88 11-3/4
10 16 12 7/8 1 14-1/4
12 19 12 7/8 1 17
14 21 12 1 1.12 18-3/4
16 23-1/2 16 1 1.12 21-1/4
18 25 16 1-1/8 1.25 22-3/4
20 27-1/2 20 1-1/8 1.25 25
24 32 20 1-1/4 1.38 29-1/2

Cupro-Nickel Flanges Size Chart

Nominal Pipe Size Outside Diameter of Flanges Thickness of Flanges Diameter of Raised Face Diameter of Hub at Base Length Thru Hub Diameter or Bore Diameter of Hub at Bevel Radius of Fillet Depth of Socket
Welding Neck Slip-On Threaded Socket Lap Joint Slip-on Socket Lap Joint
O Q R X Y Y Y W B H r Z
1/2 3-1/2 7/16 1-3/8 1-3/16 1-7/8 5/8 5/8 .88 .90 .84 1/8 3/8
3/4 3-7/8 1/2 1-11/16 1-1/2 2-1/16 5/8 5/8 1.09 1.11 1.05 1/8 7/16
1 4-1/4 9/16 2 1-15/16 2-3/16 11/16 11/16 1.36 1.38 1.32 1/8 1/2
1-1/4 4-5/8 5/8 2-1/2 2-5/16 2-1/4 13/16 13/16 1.70 1.72 1.66 3/16 9/16
1-1/2 5 11/16 2-7/8 2-9/16 2-7/16 7/8 7/8 1.95 1.97 1.90 1/4 5/8
2 6 3/4 3-5/8 3-1/16 2-1/2 1 1 2.44 2.46 2.38 5/16 11/16
2-1/2 7 7/8 4-1/8 3-9/16 2-3/4 1-1/8 1-1/8 2.94 2.97 2.88 5/16 3/4
3 7-1/2 15/16 5 4-1/4 2-3/4 1-3/16 1-3/16 3.57 3.60 3.50 3/8 13/16
3-1/2 8-1/2 15/16 5-1/2 4-13/16 2-13/16 1-1/4 1-1/4 4.07 4.10 4.00 3/8 7/8
4 9 15/16 6-3/16 5-5/16 3 1-5/16 1-5/16 4.57 4.60 4.50 7/16 15/16
5 10 15/16 7.5/16 6-7/16 3-1/2 1-7/16 1-7/16 5.66 5.69 5.56 7/16 15/16
6 11 1 8-1/2 7-9/16 3-1/2 1-9/16 1-9/16 6.72 6.75 6.63 1/2 1-1/16
8 13-1/2 1-1/8 10-5/8 9-11/16 4 1-3/4 1-3/4 8.72 8.75 8.63 1/2 1-1/4
10 16 1-3/16 12-3/4 12 4 1-15/16 1-15/16 10.88 10.92 10.75 1/2 1-5/16
12 19 1-1/4 15 14-3/8 4-1/2 2-3/16 2-3/16 12.88 12.92 12.75 1/2 1-9/16
14 21 1-3/8 16-1/4 15-3/4 5 2-1/4 3-1/8 14.14 14.18 14.00 1/2 1-5/8
16 23-1/2 1-7/16 18-1/2 18 5 2-1/2 3-7/16 16.16 16.19 16.00 1/2 1-3/4
18 25 1-9/16 21 19-7/8 5-1/2 2-11/16 3-13/16 18.18 18.20 18.00 1/2 1-15/16
20 27-1/2 1-11/16 23 22 5-11/16 2-7/8 4-1/16 20.20 20.25 20.00 1/2 2-1/8
24 32 1-7/8 27-1/4 26-1/8 6 3-1/4 4-3/8 24.25 24.25 24.00 1/2 2-1/2

Cupro-Nickel Flanges Weight Chart

Pipe Normal Diam. O.D. Flange Thk. Of Flange Min Diam.
of
Hub
Diameter of Raised Face Length Hub.Y Thread Length Diam.
of Bolt
Circle
Diam.
of Bolt
Holes
Number
of Bolts
Diam. of
Bolts
(inch)
KG LB
inch dn O C X G Y T BC BH BN BD    
1/2″ 15 89.00 11.20 30.20 35.10 15.70 15.70 60.50 15.80 4 1/2″ 0.4 0.9
3/4″ 20 98.50 12.70 38.10 42.90 15.70 15.70 69.90 15.80 4 1/2″ 0.7 1.5
1″ 25 108.00 14.20 49.30 50.80 17.50 17.50 79.30 15.80 4 1/2″ 0.8 1.8
1-1/4″ 32 117.50 15.70 58.70 63.50 20.60 20.60 88.90 15.80 4 1/2″ 1.2 2.6
1-1/2″ 40 127.00 17.50 65.00 73.20 22.40 22.40 98.60 15.80 4 1/2″ 1.5 3.3
2″ 50 152.50 19.10 77.70 91.90 25.40 25.40 120.70 19.10 4 5/8″ 2.3 5.1
2-1/2″ 65 178.00 22.40 90.40 104.60 28.40 28.40 139.70 19.10 4 5/8″ 3.7 8.1
3″ 80 190.50 23.90 108.00 127.00 30.20 30.20 152.40 19.10 4 5/8″ 4.1 9
3-1/2″ 90 216.00 23.90 122.20 139.70 31.80 31.80 177.80 19.10 8 5/8″ 5.1 11.2
4″ 100 228.50 23.90 134.90 157.20 33.30 33.30 190.50 19.10 8 5/8″ 5.9 13
5″ 125 254.00 23.90 163.60 185.70 36.60 36.60 215.90 22.40 8 3/4″ 7 15.4
6″ 150 279.50 25.40 192.00 215.90 39.60 39.60 241.30 22.40 8 3/4″ 8.4 18.5
8″ 200 343.00 28.40 246.10 269.70 44.50 44.50 298.50 22.40 8 3/4″ 13 28.6
10″ 250 406.50 30.20 304.80 323.90 49.30 49.30 362.00 25.40 12 7/8″ 18 39.5
12″ 300 482.50 31.80 365.30 381.00 55.60 55.60 431.80 25.40 12 7/8″ 29 64
14″ 350 533.50 35.10 400.10 412.80 57.20 57.20 476.30 28.50 12 1″ 39 86
16″ 400 597.00 36.60 457.20 469.90 63.50 63.50 539.80 28.50 16 1″ 47 103
18″ 450 635.00 39.60 505.00 533.40 68.30 68.30 577.90 31.80 16 1 1/8″ 57 126
20″ 500 698.50 42.90 558.80 584.20 73.20 73.20 635.00 31.80 20 1 1/8″ 76 167
24″ 600 813.00 47.80 663.40 692.20 82.60 82.60 749.30 35.10 20 1 1/4″ 97 214