Copper Nickel Round Bars

Chuck Metals is a reputable manufacturer and supplier of high-quality metal products, proudly based in Singapore, with its operations centered in Pulau Ujong. The company has built a solid reputation for delivering precision-engineered materials across various sectors, including marine, offshore, shipbuilding, construction, and chemical industries. One of their standout offerings is the Copper Nickel Round Bars, known for their impressive corrosion resistance and mechanical reliability. Chuck Metals is dedicated to ensuring consistent quality, quick delivery, and robust technical support, so clients can count on tailored solutions that meet their specific operational needs. With a strong presence in both regional and global markets, Chuck Metals is at the forefront of metal innovation.

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Cupro Nickel Polished Round Bar

Cu-Ni Alloy Round Bar

ASTM B111 Cu-Ni Rods

What is Copper Nickel Round Bars?

Copper Nickel Round Bars are primarily made up of copper (about 60–90%) and nickel (10–30%), with small amounts of iron and manganese added to boost strength and corrosion resistance. These bars are particularly well-known for their excellent resistance to seawater corrosion, biofouling, and stress corrosion cracking, especially in marine settings. They typically boast a tensile strength ranging from 350 to 550 MPa and good ductility, with an elongation of around 30%. Renowned for their stability under high pressure and temperature, Copper Nickel alloys also maintain good weldability, formability, and mechanical performance, making them ideal for both static and dynamic loading applications in harsh and corrosive environments.

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Copper Nickel Round Bars Specifications

Specifications	ASTM B151 / ASME SB151
Dimensions	ASTM, ASME and API
Size	5 mm To 500 mm
Diameter	10 mm To 100 mm
Length	100 mm To 3000 mm Long & Above, 100 mm TO 90/100 mm
Finish	Black, Bright Polished, Rough Turned, NO.4 Finish, Matt Finish, BA Finish
Form	Round, Square, Hex (A/F), Rectangle, Wire (Coil Form), Wiremesh, Billet, Ingot, Forging Etc.,
Condition	Cold Drawn & Polished Cold Drawn, Centreless Ground & Polished

Chemical Composition of Copper Nickel Bars

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
Cu-Ni 70-30	65.0 min	1 max	.05 max	29-33	0.4-1.0	1 max

Mechanical Properties of Copper Nickel Round Bars

Element	Density	Melting Point	Tensile Strength	Yield Strength (0.2%Offset)	Elongation
Copper Nickel 90/10, 70/30	0.323 lb/in3 at 68 F	2260 F	50000 psi	20000 psi	30 %

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Copper Nickel Round Bar Weights

Bar Diameter (mm)	Weight (kg/m)
6	0.22
8	0.39
10	0.62
12	0.89
16	1.58
20	2.47
25	3.85
32	6.31
40	9.86
45	12.5
50	15.4
60	22.2
65	26.0
75	34.7
90	49.9
100	61.6

Copper Nickel Bar and Rods Equivalent Grades

STANDARD	WERKSTOFF NR.	UNS
Cupro Nickel 90/10	2.0872	C70600
Cupro Nickel 70/30	2.0882	C71500

Copper Nickel Round Bar Sizes

Type	SIZES (mm)	SIZES (Inches)	ISO Tolerance
Cold Drawn and Ground	10.00 – 75.00	5/6″ – 2.50″	h8-h9-h10-h11
Peeled and Polished	40.00 – 150.00	1.50″ – 6.00″	h11, h11-DIN 1013
Peeled and Ground	20.00 – 50.00	3/4″ – 2.00″	h9-h10-h11
Cold Drawn and Polish	3.00 – 75.00	1/8″ – 3.00″	h8-h9-h10-h11

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Copper Nickel Round Bars Types

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Frequently Asked Questions (FAQ)

Are Copper Nickel Round Bars Customizable?

Yes, copper-nickel round bars are customizable in terms of alloy composition, dimensions, mechanical properties, and surface finishes to meet specific application requirements across various industries.

How Do I Select The Right Copper Nickel Round Bars For My Application?

To select the right copper-nickel round bars, consider the alloy composition (90/10 or 70/30), required corrosion resistance, mechanical properties, application environment (marine, industrial), and specific performance needs like strength or durability.

Are Copper Nickel Round Bars Recyclable?

Yes, copper-nickel round bars are fully recyclable. Their composition allows them to be efficiently recycled without losing their properties, making them an environmentally sustainable choice for various applications.

Copper Nickel Round Bars Uses

Copper Nickel Round Bars find extensive use in industries that demand strong corrosion resistance alongside mechanical strength. In the marine and shipbuilding sectors, they are commonly used to manufacture propeller shafts, seawater piping systems, and condensers, thanks to their durability in saltwater conditions. In offshore oil and gas platforms, these bars are perfect for hydraulic lines and heat exchangers that come into contact with harsh fluids. They are also utilized in power plants, chemical processing systems, and desalination units, where resistance to corrosion and erosion is crucial.

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