Copper Nickel Flanges
Copper Nickel Flanges
Manufacturer, Supplier & Exporter
Emirerri Steel offers high-quality Copper Nickel Flanges, engineered for excellent resistance to corrosion, erosion, and seawater environments. These flanges are widely used for connecting pipes, valves, and other components in marine, offshore, and industrial systems.
Our Copper Nickel flanges are available in various types, sizes, pressure classes, and standard grades, providing reliable performance in demanding conditions.
Key Features
High resistance to seawater corrosion and erosion
Strong mechanical performance for high-pressure service
Easy installation and maintenance
Suitable for marine and industrial environments
Available in custom sizes and pressure ratings
Types of Copper Nickel Flanges
1. Copper Nickel Slip-on Flange
2. Copper Nickel Weld Neck Flange
3. Copper Nickel Socket Weld Flange
4. Copper Nickel Blind Flange
5. Copper Nickel Threaded Flanges
6. Copper Nickel Lap Joint Flanges
Grades and Materials
Flange Grades (Alloy Types)
- Cu-Ni 90/10 (C70600)
- Cu-Ni 70/30 (C71500)
- Other grades: UNS C71640Â
Common Standards
- ANSI/ASME B16.5
- DIN 2633, DIN 86037
- EEMUA 145
Flange Ratings / Pressure Classes
ASME/ANSI B16.5 Formula
PT = (Pr x SI) / 8750
- PT = rated working pressure in psig for specified material at temperature T.
- Pr = Pressure rating as per Class in Psig.
- SI = Selected stress in Psig for specified material at Temperature T.
- Refer to ASME B16.5 Annex B for the detailed calculation of Pressure Ratings.
| Flanges pressure rating in psig for common carbon steel ASME flanges | |||||||
| ( A105 / A350 LF2 / A350 LF3 / A350 LF6) | |||||||
| Temperature (F°) | 150# | 300# | 400# | 600# | 900# | 1500# | 2500# |
| -20 to 100 | 285 | 740 | 985 | 1480 | 2220 | 3705 | 6170 |
| 200 | 260 | 680 | 905 | 1360 | 2035 | 3395 | 5655 |
| 300 | 230 | 655 | 870 | 1310 | 1965 | 3270 | 5450 |
| 400 | 200 | 635 | 845 | 1265 | 1900 | 3170 | 5280 |
| 500 | 170 | 605 | 805 | 1205 | 1810 | 3015 | 5025 |
| 600 | 140 | 570 | 755 | 1135 | 1705 | 2840 | 4730 |
| 650 | 125 | 550 | 730 | 1100 | 1650 | 2745 | 4575 |
| 700 | 110 | 530 | 710 | 1060 | 1590 | 2655 | 4425 |
| 750 | 95 | 505 | 675 | 1015 | 1520 | 2535 | 4230 |
| 800 | 80 | 410 | 550 | 825 | 1235 | 2055 | 3430 |
| 850 | 65 | 320 | 425 | 640 | 955 | 1595 | 2655 |
| 900 | 50 | 230 | 305 | 460 | 690 | 1150 | 1915 |
| 950 | 35 | 135 | 185 | 275 | 410 | 685 | 1145 |
| 1000 | 20 | 85 | 115 | 170 | 255 | 430 | 715 |
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Sizes and Pressure Classes
Nominal Pipe Size (NPS): ½â to 48â
DN Range: DN15 to DN1200
Flange Ratings: Class 150, 300, 400, 600, 900
DIN/EN Ratings: PN6, PN10, PN16, PN25, PN40
Applications
Marine and Offshore Piping
Desalination Plants and Cooling Systems
Heat Exchangers and Condensers
Power Plants and Industrial Pipelines
Chemical and Petrochemical Process Lines