Copper Nickel 90/10 Buttweld Fittings
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Copper Nickel 90/10 Buttweld Fittings

Copper Nickel 90/10, also known as Cupronickel 90/10 or C70600, is a copper-based alloy that consists of 90% copper and 10% nickel, along with small amounts of other elements like iron and manganese. This alloy is highly regarded for its exceptional corrosion resistance in marine environments and various industrial applications. Buttweld fittings are an essential component in piping systems, used to connect pipes of different sizes and shapes, ensuring a smooth and leak-free flow of fluids.
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As a leading supplier and manufacturer in China, GNEE Steel provides cost-effective nickel-based alloy products.

Product Introduction

Copper Nickel 90/10 buttweld fittings are specifically designed using the Copper Nickel 90/10 alloy. These fittings offer the unique combination of copper's excellent thermal and electrical conductivity along with nickel's superior corrosion resistance. This makes them particularly well-suited for applications where resistance to seawater corrosion and biofouling is crucial, such as in marine environments, desalination plants, and offshore oil and gas platforms.

Copper Nickel Buttweld Fitting Equivalent Grades

STANDARD WERKSTOFF NR. UNS
Copper Nickel 90/10 2.0872 C70600

Chemical Composition of Copper Nickel 90/10 Buttweld Fitting

Grade Cu Mn Pb Ni Fe Zn
Cu-Ni 90-10 88.6 min 1.0 max .05 max 9-11 max 1.8 max 1 max

Mechanical Properties of Copper Nickel 90/10 Buttweld Fitting

Element Density Melting Point Tensile Strength Yield Strength (0.2%Offset) Elongation
Copper Nickel 90-10 0.323 lb/in3 at 68 F 2260 F 50000 psi 20000 psi 30 %

Nickel 90 Degree Elbow

Common Types of Copper Nickel 90/10 Buttweld Fittings:

  • Elbows: Used to change the direction of the pipe's flow, typically in 90° or 45° angles.
  • Tees: Used to create a branch in the pipeline, dividing the flow into two directions.
  • Reducers: Used to connect pipes of different diameters, allowing for a smooth transition in size.
  • Caps: Placed at the end of pipes to seal them, preventing the flow of fluids.
  • Stub Ends: Used in conjunction with lap joint flanges for connections that require disassembly.
  • Crosses: Similar to tees but with an additional outlet for a fourth pipe.

Advantages of Copper Nickel 90/10 Buttweld Fittings:

  • Excellent resistance to corrosion in marine and aggressive environments.
  • High durability and longevity, reducing maintenance costs.
  • Good machinability and weldability.
  • Suitable for both high-pressure and high-temperature applications.
  • Biocompatible, making it suitable for applications involving contact with seawater.
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Nickel 180 Degree Elbow

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