ASME B16.5 CuNi 70/30 Forged Flange, Class 150 Socket Weld, Marine Grade SWRF

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 ASME B16.5 CuNi 70/30 Forged Flange, Class 150 Socket Weld, Marine Grade SWRF Surfacefinish Smooth, Polished Or As Per Customer Specification
Density 8.9 G/cm³ Connection Type Welding
Shape Elbow Press 20Bar
Length 75 MM Temperaturerange -196°C To 200°C (-320°F To 392°F)
Machinability Good Grade 90/10 Copper Nickle (UNS 70600)
Application Pipe Lines Connect Weldability Good
Thread Type ASME B1.20.1(NPT) Size Rane 1/2
Thickness 3х2,5 Mm Size Range 1/2
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Product Description

ASME B16.5 CuNi 70/30 Forged Flange, Class 150 Socket Weld, Marine Grade SWRF

 

1.Product Description 

The Copper Nickel Socket Weld Flange is manufactured from high-quality 70/30 Copper Nickel Alloy (CuNi 70/30, UNS C71500) in compliance with ASME B16.5 standard. This forged flange features a Class 150 pressure rating and socket weld connection type. The socket weld design allows the pipe to be inserted into a recessed area of the flange and welded around the outer diameter, creating a strong, leak-proof permanent connection ideal for high-pressure systems . The 70/30 copper-nickel alloy consists of 70% copper and 30% nickel, with trace amounts of iron and manganese, providing excellent mechanical properties and corrosion resistance

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 2. Applications 

Due to the alloy's exceptional resistance to seawater corrosion and biofouling, CuNi 70/30 flanges are widely used in :

  • Marine & Offshore Engineering: Seawater cooling systems, shipbuilding, desalination plants, offshore platforms

  • Petrochemical Industry: Chemical processing, heat exchangers, pressure vessels

  • Power Generation: Nuclear and thermal power plant cooling systems

  • Naval Applications: Naval ship piping systems (DEF STAN 02-879 compliant)

  • Industrial Applications: Hydraulic pipelines, firewater systems, fish farming cages 

3. Product Functions 

The Copper Nickel Socket Weld Flange serves the following functions in piping systems:

  • Pipe Connection: Provides a reliable, leak-proof connection between pipes, valves, pumps, and other equipment

  • System Access Point: Allows for easy disassembly and maintenance of piping systems

  • Pressure Containment: Safely contains system pressure up to Class 150 rating

  • Flow Direction Control: Facilitates changes in piping direction when used with elbows or tees

  • Equipment Isolation: When used with blind flanges, can isolate sections of the piping system

ASME B16.5 CuNi 70/30 Forged Flange, Class 150 Socket Weld, Marine Grade SWRF 0

4.Technical Specifications

Parameter Specification
Material Grade CuNi 70/30 (UNS C71500)
Standard ASME B16.5 / ANSI B16.5
Pressure Class Class 150 (also available: 300#, 600#, 900#, 1500#, 2500#)
Connection Type Socket Weld (SW)
Size Range 1/4" to 24" (DN15-DN600)
Face Type Raised Face (RF) / Flat Face (FF)
Chemical Composition Cu: 70%, Ni: 30%, Mn: 0.5-1.5%, Fe: 0.6-1.0%
Tensile Strength ≥350 MPa
Yield Strength (0.2%) ≥130 MPa
Elongation ≥36%
Density 0.323 lb/in³ (8.94 g/cm³) at 68°F
Temperature Range Up to 400°F (204°C)

 

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.