CuNi 70/30 C71500 Marine Anti-Corrosion Plate Sheet ASTM B171

Copper Nickel 70/30 Socket Weld Flange Class 150 ASME B16.5 Corrosion Proof Marine Fitting

1. Product Description:The ASME B16.5 CuNi 70/30 Forged Socket Welding Flange is a premium piping component manufactured from copper-nickel 70/30 alloy (UNS C71500). This flange features a socket bore design where the pipe end is inserted and fillet welded both inside and outside, creating a strong, permanent, and leak-proof joint. Fully compliant with ASME B16.5 Class 150 standards and manufactured through advanced forging processes, it delivers superior strength, dimensional accuracy, and reliability in demanding marine and industrial environments.

2. Key Specifications:

3. Applications:This flange is widely used in marine & offshore engineering, seawater cooling systems, shipbuilding, oil & gas platforms, desalination plants, power generation, and petrochemical industries. Its excellent resistance to seawater corrosion and biofouling makes it the preferred choice for critical fluid handling systems.

4-5. Product Advantages & Functions:

Advantages: Superior seawater corrosion resistance, anti-biofouling, high strength-to-weight ratio, excellent weldability, and long service life with minimal maintenance. Forged construction ensures superior grain structure and mechanical properties.

Functions: Securely connects pipes, valves, pumps and equipment; provides pressure containment; enables easy system disassembly for inspection and maintenance.

6. Instructions & Precautions:

Installation: Clean socket and pipe end; insert pipe to socket shoulder; apply fillet welding using ERCuNi filler; use compatible gaskets; torque bolts evenly in cross-pattern sequence; conduct pressure test before service.

Precautions: Ensure material compatibility to avoid galvanic corrosion; control welding temperature; store in dry environment; handle carefully to protect sealing surfaces.

7-11. Shipping / Payment / Packaging / After-Sales