Marine Grade CuNi 70/30 SWRF Flange Class150, Corrosion Resistant Forged C71500

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 Marine Grade CuNi 70/30 SWRF Flange Class150, Corrosion Resistant Forged C71500 Surfacefinish Smooth, Polished
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 Welding, Threaded, Etc. 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 16K
Process Casting, Forging, Etc. Weldability Good
Link Mode Forging Standard Of Execution HG/T20592-2009
Durability High Design Weld Neck, Slip On, Etc.
Product Type Flange With Neck Butt Welding Application Marine, Offshore, Chemical Processing
Hardness HB 90-110 Type Slip-On, Weld Neck, Blind, Threaded
Machinability Fair Size 3/4
Tensilestrength Approximately 450 MPa Often Used Of PN≤10.0MPa,DN≤40
Face Type Raised Face, Flat Face, Ring Type Joint Corrosion Resistance Excellent
Thickness Customized Head Code Round
Coppercontent 70% Copper, 30% Nickel
Highlight

Marine Grade CuNi 70/30 flange

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Corrosion resistant C71500 flange

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Class150 forged copper nickel flange

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Product Description

Marine Grade CuNi 70/30 SWRF Flange Class150, Corrosion Resistant Forged C71500
 
1.Product Description 

The Copper Nickel Flange is a precision-engineered piping component manufactured from Copper-Nickel alloy, primarily grades 90/10 (UNS C70600) and 70/30 (UNS C71500). It is used to connect pipes, valves, pumps, and other equipment to form a leak-proof and durable piping system. Due to its outstanding resistance to seawater and biofouling, it is widely regarded as the standard material for marine, offshore, and desalination applications.


 2. Applications 

  • Marine & Shipbuilding: Seawater cooling systems, ballast lines, firewater systems, sanitary lines.

  • Offshore Oil & Gas: Topside piping on platforms, subsea equipment connections.

  • Desalination & Power: Evaporators, heat exchangers, condensers in MSF and MED desalination plants.

  • Industrial: Chemical processing where resistance to brackish water or diluted acids is required.

3. Product Functions 

  • Mechanical Connection: Provides strong, detachable joints between pipes and equipment.

  • System Sealing: When combined with a suitable gasket, creates a pressure-tight seal against fluid leakage.

  • Easy Dismantling: Allows sections of the piping system to be removed for maintenance, repair, or modification.

  • Blind Function: Blind flanges close off pipe ends or vessel openings for pressure testing or future extension.

Marine Grade CuNi 70/30 SWRF Flange Class150, Corrosion Resistant Forged C71500 0

​4.Technical Specifications

Parameter Value / Range
Material Grades UNS C70600 (90/10 Cu-Ni), UNS C71500 (70/30 Cu-Ni)
Applicable Standards ANSI B16.5, ASME B16.47, DIN, BS, JIS, EN1092-1
Pressure Ratings Class 150 / 300 / 600 / 900 / 1500 / 2500
Size Range 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 Point 1150℃ – 1200℃ (2100℉ – 2190℉)
Facing Types Raised Face (RF), Flat Face (FF), Tongue & Groove (T&G), 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.