C71500 Cu-Ni Alloy Flange – SSM

SSM supplies high-quality C71500 Copper Nickel Alloy Flanges, designed for marine, offshore, seawater, and industrial piping systems requiring excellent corrosion resistance, high strength, and long-term reliability. Manufactured from premium Copper Nickel Alloy C71500 (CuNi 70/30), these flanges provide outstanding resistance to seawater corrosion, biofouling, and erosion, making them an ideal choice for harsh marine environments.

C71500 Cu-Ni alloy flanges are widely used in shipbuilding, desalination plants, offshore platforms, and heat exchanger systems where superior resistance to saltwater and chemical environments is essential.

What is a C71500 Cu-Ni Alloy Flange?

A C71500 Copper Nickel Alloy Flange is a pipe connection component manufactured from 70% copper and 30% nickel alloy, used for connecting pipes, valves, pumps, and equipment in corrosion-resistant piping systems.

Key advantages include:

Excellent seawater corrosion resistance

Superior resistance to chloride stress corrosion cracking

Good resistance to erosion and cavitation

High mechanical strength and durability

Excellent weldability and fabrication performance

Long service life in marine and offshore applications

C71500 alloy is one of the most widely used copper-nickel materials due to its excellent balance of corrosion resistance, mechanical properties, and cost-effectiveness.

Material and Specifications

Material: Copper Nickel Alloy C71500 / CuNi 70/30 / UNS C71500

Standards:

ASTM B151 / B171

ASME B16.5 (Flange Dimensions)

ASME B16.47 (Large Diameter Flanges, upon request)

Flange Types Available:

Weld Neck Flange (WN)

Slip On Flange (SO)

Blind Flange (BL)

Socket Weld Flange (SW)

Threaded Flange (TH)

Lap Joint Flange (LJ)

Face Types:

RF (Raised Face)

FF (Flat Face)

RTJ (Ring Type Joint)

Size Range: NPS ½" – 24" (custom sizes available)

Pressure Classes:

Class 150

Class 300

Class 600

Manufacturing Process:

Forging

CNC machining

Heat treatment

Precision finishing

Applications

SSM's C71500 Cu-Ni Alloy Flanges are widely used in:

Marine piping systems

Shipbuilding and ship repair

Offshore oil and gas platforms

Seawater cooling systems

Desalination plants

Heat exchangers and condensers

Power plant cooling systems

Chemical processing equipment

Coastal industrial facilities

Why Choose SSM?

Over 30 years of experience in copper alloy and corrosion-resistant product manufacturing

Professional production of Cu-Ni flanges, fittings, forgings, and custom components

Advanced forging and CNC machining equipment for accurate dimensions

Strict quality control according to ASTM, ASME, and international standards

Complete material traceability with Mill Test Certificates (MTC)

Custom sizes, pressure ratings, and special requirements available

Reliable global delivery with competitive pricing

Conclusion

For C71500 Copper Nickel Alloy Flanges, SSM provides high-performance flange solutions engineered for seawater, marine, and industrial applications. With excellent corrosion resistance, mechanical strength, and durability, C71500 Cu-Ni flanges are an ideal choice for piping systems operating in demanding environments.

📩 Contact SSM today for quotations, technical specifications, drawings, and customized C71500 Cu-Ni flange solutions.

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