CuNi 70/30 Socket Weld Flange Class150, Forged C71500 Seawater & Biofouling Resistant
CuNi 70/30 Socket Weld Flange Class150, Forged C71500 Seawater & Biofouling Resistant
1.Product Description
The Copper Nickel Flange is a high-performance piping component manufactured from Copper-Nickel alloy (commonly 90/10 or 70/30 composition). It is designed to connect pipes, valves, pumps, and other equipment to form a complete piping system. Due to its excellent resistance to corrosion in marine environments, this flange is the industry standard for naval architecture and offshore engineering.
2. Applications
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Marine Engineering: Seawater cooling pipelines, ballast systems, firefighting systems, shipbuilding.
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Offshore & Onshore: Oil and gas platforms, desalination plants, power stations.
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Industrial: Heat exchangers, condensers, and equipment requiring resistance to high-velocity seawater corrosion.
3. Product Functions
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Connection & Extension: Provides reliable, leak-proof mechanical connection for piping systems.
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Access & Maintenance: Blind flanges allow easy access to pipe ends or pressure vessels for inspection and cleaning.
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Pressure Isolation: Isolates specific sections of a piping system without draining the entire system.
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Size & Direction Change: Facilitates changes in pipe diameter (reducing flanges) or direction when combined with fittings.
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4.Technical Specifications
| Parameter | Value |
| Material Grades | UNS C70600 (90/10 Cu-Ni), UNS C71500 (70/30 Cu-Ni) |
| Standards | ANSI/ASME B16.5, ASME B16.47, DIN, BS, JIS, EN |
| Pressure Ratings | Class 150 / 300 / 600 / 900 / 1500 / 2500 |
| Nominal Size | DN15 (1/2″) to 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℉) |
| Face 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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