Home > Copper Nickel > Cupro Nickel Hydraulic Fittings
These fittings are primarily made up of 70% copper and 30% nickel, often with small amounts of iron and manganese added to boost strength and corrosion resistance. Mechanically, they showcase high tensile strength, good ductility, and excellent toughness, along with resistance to pitting, erosion, and biofouling. Designed for long-lasting durability in high-pressure hydraulic environments, they maintain leak-proof connections and reliable fluid flow. The unique combination of their composition and mechanical properties makes Cupro Nickel Hydraulic Fittings perfect for challenging marine, industrial, and chemical hydraulic applications.
These fittings are primarily made up of 70% copper and 30% nickel, often with small amounts of iron and manganese added to boost strength and corrosion resistance. Mechanically, they showcase high tensile strength, good ductility, and excellent toughness, along with resistance to pitting, erosion, and biofouling. Designed for long-lasting durability in high-pressure hydraulic environments, they maintain leak-proof connections and reliable fluid flow. The unique combination of their composition and mechanical properties makes Cupro Nickel Hydraulic Fittings perfect for challenging marine, industrial, and chemical hydraulic applications.
| 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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Cupro Nickel Hydraulic Fittings are extensively utilized in industries that demand corrosion-resistant, high-strength components for hydraulic systems. They play a crucial role in marine applications, including shipbuilding and offshore platforms, thanks to their ability to withstand seawater corrosion. In oil and gas and chemical processing facilities, these fittings guarantee safe and efficient fluid transfer under high-pressure conditions. They are also found in power generation, desalination plants, and industrial hydraulic networks, ensuring reliable, leak-proof connections. With their durability, corrosion resistance, and mechanical strength, these fittings are a go-to choice for various demanding applications.
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