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Copper Nickel

Copper-nickel (also known as cupronickel) alloys are widely used for marine applications due to their excellent resistance to seawater corrosion, low macrofouling rates, and good fabricability. They have provided reliable service for decades while offering effective solutions to today’s technological challenges.

The addition of nickel to copper improves strength and corrosion resistance while allowing the alloy to remain ductile. Other elements can be added to copper-nickel to increase strength, corrosion resistance, hardening, weldability and castability. 90-10 copper-nickel (C70600, CW352H), an alloy with 90% copper and 10% nickel, is the most commonly used alloy. It can be found in naval and commercial shipping, offshore oil and gas production as well as desalination and power generation. Alloys with 30% nickel content (C71500, C71640) and those which are more highly alloyed with aluminum, chromium or tin are used where greater resistance to seawater flow, sand abrasion, wear and galling, as well as higher mechanical properties, are required.

Non-marine applications for copper-nickel include cryogenic applications, brake tubing and silver-colored coins, such as the 1- and 2-euro denominations and the 5-cent U.S. nickel. Since copper-nickel alloys have strong antimicrobial properties, they are marketed as hygienic "touch materials" to reduce cross-contamination and infections, particularly in hospital intensive care units.
C110 Copper has a wide range of applications, from plumbing to electrical conductivity used in motors, electromagnets and bus bars. Copper is an excellent choice for hot and cold forming applications as well as applications that require extensive machining.

This section offers a broad technical overview of copper-nickel alloys and a wealth of information/data useful for good practices in design, fabrication and application. It is organized as follows:

Applications by Industry:
Marine: Guidelines for Seawater System Design and Operation are presented; Seawater System Components are detailed; Sections cover Cu-Ni in Desalination Plants, Offshore Oil and Gas, Power Generation, Shipbuilding and Ship Repair, Boat Hulls, and Marine Antimicrobial applications.

Non-Marine: Coinage; Brake Tubing.

Types of Alloys: Marine Alloys; Alloy Compositions; Alloy Additives and Impurities; Standards; Non-Marine Alloys; Cross-Reference Table.

Product Forms: Tables of Typical Forms and Sizes; ASTM, EN and ISO Standards; Castings; Link to Product Supplier's Search List.

Standards: Product Forms; Compositions; Design.

Properties: Corrosion Resistance; Macrofouling Reduction; Mechanical; Physical; Cryogenic; Antimicrobial; Environmental Properties.

Fabrication: Joining; Welding; Brazing; Soldering; Machining Parameters; Pipework Fabrication Methods; Weld Instruction Videos.

Copper Nickel Availability Alloy Steel Age supplies Copper Nickel in the form of Angle, Sheets, Plates, Flanges, Flat Bars, Pipe Fittings, Pipes, Chnnels and flanges.

Specification

Copper Nickel Angles

Grades :

Cupro Nickel 90/10 (C70600), Cupro Nickel 70/30 (C71500), UNS C71640

Standard :

ASTM B151 / ASME SB151

Dimensions :

AEN, DIN, JIS, ASTM, BS, ASME, AISI

Cu-Ni Angle

5mm to 9mm

Cu-Ni T Beam

3″ thru 12.31″

Cu-Ni 90/10 Chain

1/8 inch – 1/2 inch Diameter

Thickness

3.0mm – 120mm

Length

3MTR, 4MTR, 5MTR, 6MTR, or Custom Cut Sizes

Types

Stuctural Steel Angle, Bars, Equal, Unequal, L, T, Hot Rolled

Copper Nickel Sheets

Grades :

Cupro Nickel 90/10 (C70600), Cupro Nickel 70/30 (C71500), UNS C71640

Specifications

ASTM B171 / ASME SB171

Dimensions :

ASTM, ASME and API

Thickness :

0.1mm to 12 mm Thk

Size :

1000 mm x 2000 mm, 1220 mm x 2440 mm, 1500 mm x 3000 mm, 2000 mm x 2000 mm, 2000 mm x 4000 mm

Form :

Plain Sheet, Shim Sheet, Perforated Sheet

Copper Nickel Plates

Grades :

Cupro Nickel 90/10 (C70600), Cupro Nickel 70/30 (C71500), UNS C71640

Specifications

ASTM B171 / ASME SB171

Dimensions :

ASTM, ASME and API

Thickness :

0.1mm to 12 mm Thk

Size :

1000 mm x 2000 mm, 1220 mm x 2440 mm, 1500 mm x 3000 mm, 2000 mm x 2000 mm, 2000 mm x 4000 mm

Form :

Chequered Plate

Copper Nickel Flanges

Grades :

Cupro Nickel 90/10 (C70600), Cupro Nickel 70/30 (C71500), UNS C71640

Standard :

ASTM B151 / ASME SB151

Dimensions :

ANSI/ASME B16.5, B 16.47 Series A & B, B16.48, BS4504, BS 10, EN-1092, DIN, etc.

Standard :

ANSI Flanges, ASME Flanges, BS Flanges, DIN Flanges, EN Flanges, etc.

Size :

1/2" (15 NB) to 48" (1200NB)

Class/Pressure :

150#, 300#, 600#, 900#, 1500#, 2500#, PN6, PN10, PN16, PN25, PN40, PN64 etc.

Flange Face Type :

Flate Face (FF), Raised Face (RF), Ring Type Joint (RTJ)

Form :

Slip on flanges, Socket weld flanges, Forged flanges, Blind flanges, Welding neck flange, Ring type joint flange, Spectacle blind flange, Reducing flange, Threaded / Screwed flange, Tongue and Groove flange, Long weld neck flange, Plate flange, ASME B16.5 flange

Copper Nickel Flat Bars

Grades :

Cupro Nickel 90/10 (C70600), Cupro Nickel 70/30 (C71500), UNS C71640

Dimensions :

EN, DIN, JIS, ASTM, BS, ASME, AISI

Standard :

ASTM B151 / ASME SB151

Diameter :

3mm to 100mm

Thickness

1 mm to 60mm

Width:

5mm to 350mm

Standards

IS191 IS1897

Types

Copper Nickel Flat Bars, Cu-Ni Flat Bars

Copper Nickel Pipe Fittings

Specifications :

ASTM B466, B467

Dimensions :

ASME/ANSI B16.9, ASME B16.28, MSS-SP-43

Size :

1/2" to 24" NB to 24″NB in

Type :

Seamless / Welded / Fabricated

Schedule :

Sch 5 TO Sch XXS.

Thickness :

SCH 10, SCH20, SCH30, SCH40

Grades :

Cupro Nickel 90/10 (C70600), Cupro Nickel 70/30 (C71500), UNS C71640

Copper Nickel Pipes

Grades :

Copper Nickel 90/10, Cupro-Nickel 70/30

Specifications :

ASTM B466, B467 / ASME SB466, SB467

Standard :

ASTM, ASME and API

Outer Diameter :

4.00 to 22.00 mm

Wall Range :

Between 0.15mm and 1.50 mm

Length :

Single Random, Double Random & Required Length

Thickness :

0.3mm – 50 mm

Type :

Seamless, Welded, ERW

End :

Plain End, Beveled End, Treaded

Copper Nickel Channels

Grades :

Copper Nickel 90/10, Cupro-Nickel 70/30

Standard :

ASTM B151 / ASME SB151

Dimensions :

ASTM, ASME and API

Cu-Ni Channel

40mm*20mm~300mm*300mm

Thickness

3.0mm – 120mm

Length

3MTR, 4MTR, 5MTR, 6MTR, or Custom Cut Sizes

Types

Structural Steel U, C, Miscellaneous Channels, Hot Rolled Channel

Copper Nickel Round Bars

Grades :

Copper Nickel 90/10, Cupro-Nickel 70/30

Dimensions :

EN, DIN, JIS, ASTM, BS, ASME, AISI

Standard :

ASTM B151 / ASME SB151

Size :

5 mm To 500 mm

Diameter

0.1 mm to 100 mm

Length

100 mm To 3000 mm Long & Above

Types

Round, Square, Recatangle, Hexagonal, Round Threaded

Copper Nickel T Beams

Grades :

Copper Nickel 90/10, Cupro-Nickel 70/30

Standard :

ASTM B151 / ASME SB151

Dimensions :

ASTM, ASME and API

Cu-Ni T Beam

3″ thru 12.31″

Thickness

3.0mm – 120mm

Length

3MTR, 4MTR, 5MTR, 6MTR, or Custom Cut Sizes

Types

T Beams, Hot Rolled T Beams

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