CuNi 70/30 Socket Weld Flange Class150, Forged C71500 Seawater & Biofouling Resistant

Place of Origin Shanghai,China
Brand Name TOBO
Certification ISO/TUV/SGS
Model Number Copper Nickel Flange
Minimum Order Quantity 1PC
Price Negotiable
Packaging Details Standard Shipping Package
Delivery Time 15-30 Workdays
Payment Terms T/T, Western Union
Supply Ability 10Ton/Month
Product Details
Product Name CuNi 70/30 Socket Weld Flange Class150, Forged C71500 Seawater & Biofouling Resistant Surfacefinish Smooth, Polished Or As Per Customer Requirement
Easy Installation Yes Sealing Surface Form RF MFM TG RJ
Nickelcontent 30% Nickel Customized Support OEM
Use Machanical Parts Level AAA
Sizerange 1/2 Inch To 48 Inches Technics Casting
Standards ASTM B151, ASME B16.5 Temperaturerange -50°C To 200°C
Mode Of Connection Welding Flange Type Weld Neck
Compressive Strength Strong Country Of Origin China
Connection Butt Weld, Threaded, Socket Weld Standardscompliance ASTM B466, ASTM B466M, ASME B16.5
Special Functions Good Elasticity, Low Steel Value Surface Paint Spraying
Density 8.9 G/cm³ Connectiontype Welded
Austenitic Stainless C71500 Corrosionresistance High Resistance To Seawater Corrosion
Temperature Rating -196°C To 300°C Warranty 1 Year
Standard ASTM B466 Leakage Rate Zero Leakage
Surface Treatment Polishing, Sand Blasting, Etc. Pressure 150#-1500#
Process Casting, Forging, Etc. Weldability Good
Link Mode Forging Standard Of Execution HG/T20592-2009
Durability Long-lasting
Highlight

CuNi 70/30 socket weld flange

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C71500 seawater resistant flange

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Class150 forged copper nickel flange

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Product Description

CuNi 70/30 Socket Weld Flange Class150, Forged C71500 Seawater & Biofouling Resistant
 
1.Product Description 

The Copper Nickel Flange is a high-performance piping component manufactured from Copper-Nickel alloy (commonly 90/10 or 70/30 composition). It is designed to connect pipes, valves, pumps, and other equipment to form a complete piping system. Due to its excellent resistance to corrosion in marine environments, this flange is the industry standard for naval architecture and offshore engineering.


 2. Applications 

  • Marine Engineering: Seawater cooling pipelines, ballast systems, firefighting systems, shipbuilding.

  • Offshore & Onshore: Oil and gas platforms, desalination plants, power stations.

  • Industrial: Heat exchangers, condensers, and equipment requiring resistance to high-velocity seawater corrosion.

3. Product Functions 

  • Connection & Extension: Provides reliable, leak-proof mechanical connection for piping systems.

  • Access & Maintenance: Blind flanges allow easy access to pipe ends or pressure vessels for inspection and cleaning.

  • Pressure Isolation: Isolates specific sections of a piping system without draining the entire system.

  • Size & Direction Change: Facilitates changes in pipe diameter (reducing flanges) or direction when combined with fittings.

  • CuNi 70/30 Socket Weld Flange Class150, Forged C71500 Seawater & Biofouling Resistant 0

​4.Technical Specifications

Parameter Value
Material Grades UNS C70600 (90/10 Cu-Ni), UNS C71500 (70/30 Cu-Ni)
Standards ANSI/ASME B16.5, ASME B16.47, DIN, BS, JIS, EN
Pressure Ratings Class 150 / 300 / 600 / 900 / 1500 / 2500
Nominal Size DN15 (1/2″) to DN1200 (48″)
Flange Types Weld Neck (WN), Slip-On (SO), Blind (BL), Lap Joint (LJ), Socket Weld (SW), Threaded (SCRD)
Tensile Strength (70/30) ≥ 345 MPa (≥ 50 ksi)
Yield Strength (70/30) ≥ 130 MPa (≥ 20 ksi)
Elongation (70/30) ≥ 30%
Density 8.94 g/cm³ (0.323 lb/in³)
Melting Range 1150℃ – 1200℃ (2100℉ – 2190℉)
Face Type Raised Face (RF), Flat Face (FF), Ring Type Joint (RTJ)

 
FAQ
1. Are you trading company or manufacturer ?
We are manufacturer ,You can see the  certification.
2. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
3. Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but need pay the cost of freight.
4. What is your terms of payment ?
Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.