TOBO Industrial (Shanghai) Co., Ltd., a leading manufacturer and global supplier of precision-engineered piping components, has announced the introduction of a new line of high-performance Slip-On Flange Connectors manufactured from Copper-Nickel 90/10 alloy (UNS C70600). Available in a versatile 10-inch nominal size and covering pressure classes from 150# to 2500#, these connectors meet the rigorous demands of marine, offshore, chemical processing, and power generation industries .
The Material Advantage: CuNi 90/10 for Harsh Environments
The newly launched flange connectors are constructed from UNS C70600 (90/10 Copper-Nickel) alloy, a material widely recognized for its excellent resistance to seawater and aggressive chemical environments . With a composition of approximately 90% copper and 10% nickel, this alloy delivers exceptional performance where standard carbon steel and even some stainless steels may fail prematurely.
Key Performance Properties:
Outstanding Corrosion Resistance: CuNi 90/10 forms a protective, self-repairing oxide film upon exposure to seawater, providing resistance to general corrosion, pitting, and stress corrosion cracking .
Inherent Biofouling Resistance: The alloy's surface naturally inhibits the attachment and growth of marine organisms, reducing maintenance costs and maintaining flow efficiency in seawater systems .
Excellent Mechanical Properties: Tensile strength of approximately 275 MPa and good ductility ensure reliable performance under pressure .
Slip-On Design: Simplifying Installation
The Slip-On flange design offers practical advantages for fabrication and installation. This type of flange slips over the pipe end, allowing for easy alignment and welding, which simplifies the connection process compared to weld-neck alternatives .
Key Advantages:
Ease of Alignment: The flange can be easily positioned and aligned before final welding, facilitating connection to pumps, valves, and other equipment .
Cost-Effective Fabrication: Slip-on flanges generally require less precise pipe-end preparation, helping to reduce installation time and labor costs .
Versatile Application: Suitable for a wide range of piping systems, from low-pressure water lines to high-pressure industrial processes .
Comprehensive Pressure Range and Specifications
The 10-inch CuNi 90/10 slip-on flange connectors are manufactured to meet rigorous international standards .
Key Specifications:
Standard Compliance: ASTM B466 for material, ASME B16.5 for dimensions and pressure-temperature ratings .
Size: 10 inches, catering to large-scale industrial piping needs .
Pressure Classes: Available from 150# to 2500#, providing flexibility for diverse system designs .
Facing Options: Available with Raised Face (RF) and Ring-Type Joint (RTJ) sealing faces, which can be selected according to actual connection needs .
Quality Assurance and Global Standards
Each flange undergoes strict quality inspection, including material composition testing, pressure resistance verification, and dimensional checks to ensure reliable performance . The manufacturing process typically involves forging or rolling CuNi 90/10 stock, followed by precision machining to ensure smooth sealing surfaces and accurate bolt hole alignment .
Applications Across Critical Sectors
These high-performance flange connectors are engineered for mission-critical applications where material failure carries severe consequences:
Marine and Shipbuilding: Seawater cooling systems, fire mains, and ballast lines .
Offshore Oil and Gas: High-pressure seawater injection lines and cooling water systems .
Desalination and Power Generation: Piping systems in multi-stage flash (MSF) and reverse osmosis (RO) plants .
Chemical Processing: Handling aggressive fluids and chlorinated media .
About TOBO Industrial (Shanghai) Co., Ltd.
TOBO is a professional manufacturer and exporter of precision-engineered piping components based in Shanghai, China, specializing in copper-nickel alloys, stainless steels, and associated products for demanding industrial applications.