
Copper-nickel or Cu-Ni flanges have been in the industry for many decades. They are renowned for their superior corrosion resistance, high thermal conductivity, and good mechanical properties. Amongst the numerous Cu-Ni flanges, Cu-Ni 70 and 30 flanges stand out. These flanges have unique features, making them highly sought-after components in different applications.
Cu-Ni 70 flanges come in various types, sizes, and materials. The standard types of Cu-Ni 70 flanges include weld neck, slip-on, blind, threaded, and socket weld flanges. Weld necks and slip-on flanges are two common types used in high-pressure systems. They are joined to pipes by welding. Blind flanges are used to cap off the ends of pipes, while threaded and socket weld flanges are ideal for low-pressure settings. Cu-Ni 70 flanges also differ by their face type. The commonly used face types are raised face (RF), flat face (FF), and ring-type joint (RTJ). The face types will dictate the flange's sealing surface, which can determine the flange's pressure rating.
Copper Nickel 70/30 Threaded Flanges, Cupro Nickel 70-30 SORF Flanges, Cupro Nickel 70/30 Pipe Flanges, CUPRO NICKEL 70/30 LAP JOINT FLANGES, Cupro Nickel 70/30 Nippo Flanges, Cupro Nickel 70/30 Slip on Flanges Manufacturers in India.
Cu-Ni 30 flanges are widely used in various industries, including oil and gas production platforms, desalination plants, power generation facilities, and marine systems. Due to their superior corrosion resistance, Cu-Ni 30 flanges are used in seawater systems and marine facilities. Due to their high thermal conductivity, they also find applications in heat exchangers, condensers, and refrigeration systems. Cu-Ni 30 flanges are also used in pressure vessels, piping systems, and valves that handle corrosive materials.
Cu-Ni 70/30 Lap Joint Flanges, Cu Ni 70/30 Weld Neck Flanges, Cu-Ni 70/30 Blind Flanges, Copper Alloy 70/30 Forged Flanges, Cupro Nickel 70/30 Ring Type Joint Flanges Manufacturers in India.
Cu-Ni flanges are widely used for their good mechanical properties, corrosion resistance, and thermal conductivity. They are mainly used for seawater applications due to their resistance to biofouling and corrosion by seawater. Due to their excellent thermal conductivity, cu-Ni flanges are also used in heat exchangers. Besides, Cu-Ni flanges are used in offshore platforms, oil refineries, power plants, and chemical plants.
Cu-Ni flanges are highly sought-after due to their numerous benefits. They have excellent resistance to biofouling, making them ideal for seawater applications. Cu-Ni flanges are resistant to corrosion, making them highly durable and long-lasting. Cu-Ni flanges have good mechanical properties, such as high strength and flexibility, making them ideal for high-pressure applications. Cu-Ni flanges have good thermal conductivity, making them ideal for heat transfer applications.
Cu-Ni 70 and 30 flanges are highly valued for their excellent corrosion resistance, mechanical properties, and thermal conductivity. The types of Cu-Ni 70 flanges differ based on their face type, which determines their pressure rating. Cu-Ni 30 flanges find more application in seawater systems, heat exchangers, power plants, and chemical plants.



Cupro Nickel 70/30 Flanges Specification
Standard | ASTM B564 / ASME SB564 |
Dimensions | ANSI/ASME B16.5, B16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, GOST Flange, ASME/ANSI B16.5/16.36/16.47A/16.47B, MSS S44, ISO70051, JISB2220, BS1560-3.1, API7S-15, API7S-43, API605, EN1092 |
Flange Size Chart | 1/2" (15 NB) to 48" (1200NB), DN10~DN5000 |
Pressure Rating | Class 150 LBS, 300 LBS, 600 LBS, 900 LBS, 1500 LBS, 2500 LBS |
Pressure Calculation in DIN | 6Bar 10Bar 16Bar 25Bar 40Bar / PN6 PN10 PN16 PN25 PN40, PN64 |
JIS | 16 K, 5K, 10 K, 20 K, 30 K, 40 K, 63 K |
Flange Connection / Flange Face Type | Raised Face (RF), Ring Type Joint (RTJ), Flat Face (FF), Large Male-Female (LMF), Lap-Joint Face (LJF), Small Male-Female (SMF), Small Tongue, Large Tongue & Groove, Groove, Flange Pipe. |
Origin | West Europe / Japan / Indian / USA / Korean |
Types of Flanges | Threaded / Screwed / Forged / Plate |
Coating | Yellow Transparent, Zinc Plated, Anti-rust Paint, Oil Black Paint, Cold and Hot Dip Galvanized |
Test Of Flange | Direct-reading Spectrograph, Ultrasonic flaw detector, Magnetic particle detector, X-ray detector, Hydrostatic testing machine. |
Production technique Used | Heat treated, Forged and Machined |
Equipment | Press machine, Bending machine, Pushing Machine, Sand-blasting machine, electric bevelling machine etc. |
Test Certificates | EN 10204/3.1B, Raw Materials Certificate, 100% Radiography Test Report, Third Party Inspection Report, etc |
Cupro Nickel 70/30 Flange Price List
Price List of Cupro Nickel 70/30 Flanges | Copper Nickel 70/30 Flange Price in India (INR) | Cupro Nickel 70/30 Flanges Price in USD | Copper Nickel 70/30 Flanges Price in UAE (Dirham) |
---|---|---|---|
Copper Nickel 70/30 Flange Price List India | ₹ 1354 | $ 53.50 USD | 197.00 AED |
Copper Nickel 70/30 Flanges Price List | ₹ 1854 | $ 25.60 USD | 67.50 AED |
Cupro Nickel 70/30 Threaded Flanges Price | ₹ 1153 | $ 14.62 USD | 48.60 AED |
Price of Cupro Nickel 70/30 Flanges | ₹ 1115 | $ 15.78 USD | 48.50 AED |
Copper Nickel 70/30 Flanges Price | ₹ 17840 | $ 15.24 USD | 27.50 AED |
Copper Nickel 70/30 Flange Price Per Kg | ₹ 1980 | $ 11.69 USD | 50.02 AED |
CuNi 70/30 Flange Price | ₹ 1974 | $ 11.59 USD | 65.52 AED |
Copper Nickel 70/30 Raised Face Blind Flange | ₹ 1592 | $ 15.53 USD | 40.16 AED |
Cupro Nickel 70/30 Flanges Technical Data Sheet
Cupro Nickel 70/30 Pipe Flanges Equivalent Grade
STANDARD | WERKSTOFF NR. | UNS |
---|---|---|
Copper Nickel 70/30 | 2.0882 | C71500 |
Copper Nickel 70/30 Flanges Manufacturing Process

Common Types Of Cupro Nickel 70/30 Flanges

Copper Nickel 70/30 Weld Neck Flanges

CuNi 70/30 Blind Flanges

UNS C71500 Socket Weld Flanges

Copper Nickel 70/30 Slip-on Flanges

Cupro Nickel 70/30 RTJ Flange

Copper Nickel 70/30 Forged Flanges

CuNi 70/30 Lap Joint Flanges

Copper Nickel 70/30 Threaded Flanges

Copper Nickel 70/30 Spectacle Blind Flange
Other Type Copper Nickel 70/30 Flanges
- UNS C71500 Long Weld Neck Flanges
- CuNi 70/30 Reducing Flanges
- CuNi 70/30 Forged Flanges
- Copper Nickel 70/30 Threaded Flanges
- Cupro Nickel 70/30 Socket Weld Flanges
- Cupro Nickel 70/30 Flat Face Flange
- Cupro Nickel 70/30 Square Flanges
- ASTM B564 Copper Nickel 70/30 Plate Flange
- CuNi 70/30 Flat Flange
- Copper Nickel 70/30 Flanges Manufacturer in Mumbai
- Cupro Nickel 70/30 Lap Joint Flanges
- Copper Nickel 70/30 Flange Dimensions
- Copper Nickel 70/30 Socket weld Flanges
- Copper Nickel 70/30 Flanges Manufacturers in India
- CuNi 70/30 Square Flanges
- Cupro Nickel 70/30 Flanges Suppliers in India
- Cu-Ni 2.0882 Raised Face Flanges
- UNS C71500 Flanges
- Cupro Nickel 70/30 Weld Neck Flanges
- Cupro Nickel 70/30 BS 4504 Flanges
- B564 UNS C71500 Blind Flanges
- ASME SB564 Copper Nickel 70/30 Pipe Flange
- Cupro Nickel 70/30 Flanges Manufacturers in India
- Copper Nickel 70/30 Orifice Flanges
- CuNi 70/30 Orifice Flanges
- Copper Nickel 70/30 Pipe Flanges
- Copper Nickel 70/30 Lapped Joint Flanges
- Copper Nickel 70/30 Flanges Suppliers in Mumbai
- Cupro Nickel 70/30 Flanges Suppliers in Mumbai
- ANSI B16.5 CuNi 70/30 Pipe Flanges
- Copper Nickel 70/30 Industrial Flanges
- CuNi DIN 2.0882 Pipe Flanges
- Copper Nickel 70/30 Reducing Flanges
- Copper Nickel 70/30 Flange Suppliers in India
- Cupro Nickel 2.0882 Plate Flanges
- Copper Nickel 70/30 Slip on Flanges
- UNS C71500 Plate Flanges
- CuNi 70/30 Ring Type Joint Flanges
Copper Nickel 70/30 Flanges Chemical Composition
Grade | Cu | Mn | Pb | Ni | Fe | Zn |
---|---|---|---|---|---|---|
Cu-Ni 70-30 | 88.6 min | 1.0 max | .05 max | 9-11 max | 1.8 max | 1 max |
Copper Nickel 70/30 Flange Mechanical Properties
Element | Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
---|---|---|---|---|---|
CuNi 70-30 | 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |