ASME B16.5 CuNi 70/30 Forged Flange, Class150 SW Long Life Anti-Biofouling
ASME B16.5 CuNi 70/30 Forged Flange, Class150 SW Long Life Anti-Biofouling
1.Product Description
The Copper Nickel Flange is a high-performance pipe connecting component manufactured from Copper-Nickel alloy (typically 90/10 or 70/30 composition). It is widely used to connect pipes, valves, pumps, and other equipment to form a complete and reliable piping system. Thanks to its excellent resistance to seawater corrosion, this flange has become the industry standard in marine engineering and offshore oil & gas applications.
2. Applications
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Marine Engineering: Seawater cooling systems, ballast water lines, firefighting piping, ship hull piping.
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Offshore & Onshore: Oil & gas platforms, desalination plants, coastal power stations.
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Industrial Equipment: Heat exchangers, condensers, evaporators, and any equipment requiring resistance to high-velocity seawater or brackish water corrosion.
3. Product Functions
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Reliable Connection: Provides a robust, leak-tight mechanical joint between pipe sections or between pipes and equipment.
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Easy Maintenance Access: Blind flanges allow rapid opening of pipe ends or pressure vessels for internal inspection, cleaning, or repair.
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System Isolation: Isolates specific sections of a piping system for maintenance or emergency repair without draining the whole system.
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Size Transition & Direction Change: Reducing flanges enable diameter changes; when combined with elbows or tees, they facilitate flow direction changes.
4.Technical Specifications
| Parameter | Value / Range |
| Material Grades | UNS C70600 (90/10 Cu-Ni); UNS C71500 (70/30 Cu-Ni) |
| Design Standards | ANSI/ASME B16.5, ASME B16.47, DIN, BS, JIS, EN |
| Pressure Ratings | Class 150 / 300 / 600 / 900 / 1500 / 2500 |
| Nominal Diameter | DN15 (1/2″) ~ DN1200 (48″) |
| Flange Types | Weld Neck (WN), Slip-On (SO), Blind (BL), Lap Joint (LJ), Socket Weld (SW), Threaded (SCRD) |
| Tensile Strength (70/30) | ≥ 345 MPa (≥ 50 ksi) |
| Yield Strength (70/30) | ≥ 130 MPa (≥ 20 ksi) |
| Elongation (70/30) | ≥ 30% |
| Density | 8.94 g/cm³ (0.323 lb/in³) |
| Melting Range | 1150℃ ~ 1200℃ (2100℉ ~ 2190℉) |
| Facing Type | Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ) |
FAQ
1. Are you trading company or manufacturer ?
We are manufacturer ,You can see the certification.
2. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
3. Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but need pay the cost of freight.
4. What is your terms of payment ?
Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.
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