Home > Copper Nickel > Cupro Nickel Hydraulic Fittings
Max Tube Fittings stands out as a top manufacturer and exporter of Cupro Nickel Hydraulic Fittings, designed for durability, leak-proof connections, and resistance to corrosion in hydraulic systems. Crafted from premium Cu-Ni 90/10 and Cu-Ni 70/30 alloys, these fittings excel in environments with seawater, brackish water, and aggressive fluids. With remarkable resistance to erosion, stress corrosion, and biofouling, Cupro Nickel Hydraulic Fittings find their place in marine engineering, offshore drilling, desalination plants, and power generation. They are meticulously machined for precision, strength, and reliability, ensuring a long service life and consistent performance in critical hydraulic and instrumentation tasks.
Cupro Nickel Hydraulic Fittings boast outstanding mechanical strength, ductility, and corrosion resistance, even in seawater and tough industrial settings. Their impressive resistance to biofouling, cavitation, and stress cracking guarantees a longer service life. These fittings create leak-proof and vibration-resistant connections, making them perfect for high-pressure and thermal cycling situations. Being non-magnetic and thermally stable, they hold up well under changing temperatures. Easy to install and reusable, Cupro Nickel Hydraulic Fittings come in a variety of sizes, threads, and pressure ratings, all manufactured to meet international standards for hydraulic and fluid transfer systems.
| DESIGN STANDARD | DIN 2353/ ISO 8434-1 |
| MATERIAL | CUNI 90/10 & CUNI 70/30 |
| WORKING PRESSURE | (LOW) LL SERIES – 100 BAR |
| (MEDIUM)L SERIES – 100 BAR TO 500 BAR | |
| (HEAVY)S SERIES – 200 BAR TO 800 BAR | |
| SIZE RANGE | LL SERIES – 4LL TO 12LL |
| L SERIES – 6L TO 42L | |
| S SERIES – 6S TO 38S | |
| CONNECTIONS | TUBE TO TUBE , TUBE TO MALE THREAD , TUBE TO FEMALE THREAD , TUBE TO BUTT WELD , TUBE TO SOCKET WELD , TUBE TO JIC 37* , TUBE TO 24* CONE, TUBE TO SWIVEL END , TUBE TO ADJUSTBALE STANDPIPE |
| WELD NIPPLE TO MALE THREAD , WELD NIPPLE TO FEMALE THREAD , WELD NIPPLE TO BUTT WELD , WELD NIPPLE TO SOCKET WELD , WELD NIPPLE TO 24* CONE , WELD NIPPLE TO 37* JIC , WELD NIPPLE TO SWIVEL | |
| BODY TYPE | FORGED, BAR STOCK |
| SURFACE | NATURAL FINISH |
| TEMPERATURE | CUPRO NICKEL – (-60*C TO 175*C) |
| Grade | Cu | Mn | Pb | Ni | Fe | Zn |
| Cupro Nickel 70/30 | 65 min | 1.0 max | 0.05 max | 29-33 max | 0.4-1.0 max | 1 max |
| Cupro Nickel 90/10 | 88.6 min | 1.0 max | 0.05 max | 9-11 max | 1.8 max | 1 max |
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
| 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
| STANDARD | WERKSTOFF NR. | UNS |
| Cupro Nickel 70/30 | 2.0882 | C71500 |
| Cupro Nickel 90/10 | 2.0872 | C70600 |
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Copper nickel hydraulic fittings are widely used in various industries due to their exceptional corrosion resistance and durability. In marine applications it is essential for connecting piping systems and water machinery to protect them from saltwater corrosion. In the oil and gas industry, these features ensure secure connections to high-pressure systems to increase safety and productivity. In addition, they are used in chemical plants for corrosion management and HVAC systems for efficient drainage. Their reliability and efficiency make them ideal for harsh environments to ensure long-term service.
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