High Quality Cupro Nickel 90/10 Round Bars & Rods

Mechanical Strength • Accuracy & Straightness • Quality & Finish

Cupro Nickel 90/10 (UNS C70600) is a widely used copper–nickel alloy composed of approximately 90% copper and 10% nickel, with small additions of iron and manganese for improved corrosion resistance. This grade is well known for its excellent resistance to seawater corrosion, good thermal conductivity, and superior resistance to biofouling. Cupro Nickel 90/10 offers excellent formability, weldability, and ease of fabrication, making it ideal for complex piping and heat transfer applications. It performs reliably across a wide temperature range and exhibits good resistance to stress corrosion cracking. Typical applications include seawater and cooling water systems, heat exchangers, condensers, shipbuilding, offshore structures, desalination plants, and marine engineering equipment where durability, efficiency, and long-term performance are critical.

Other Types of Cupro Nickel 90/10 Bars

View Cupro Nickel Square Bar

Cupro Nickel 90/10 Square Bar

Square bars made from Cu-Ni 90/10 alloy (UNS C70600)
Excellent resistance to seawater corrosion and biofouling
Manufactured as per ASTM B111 / ASME SB111 standards
Used in marine structures and engineering components

View Cupro Nickel Hex Bar

Cupro Nickel 90/10 Hex Bar

Hexagonal bars offering strong mechanical stability
Good machinability and weldability
Conforms to ASTM B111 and DIN 2.0872
Commonly used for fasteners and marine fittings

View Cupro Nickel Rectangular Bar

Cupro Nickel 90/10 Rectangular Bar

Rectangular Cu-Ni bars for fabrication and structural use
High resistance to erosion and seawater attack
Supplied in standard and custom sizes
Used in heat exchangers and offshore systems

View Cupro Nickel Flat Bar

Cupro Nickel 90/10 Flat Bar

Flat bars with uniform thickness and smooth finish
ASTM B111 / ASME SB111 compliant material
Excellent thermal conductivity
Used in condensers and marine equipment

View Cupro Nickel Bright Bar

Cupro Nickel 90/10 Bright Bar

Bright drawn bars with close dimensional tolerance
Clean surface suitable for CNC machining
Uniform mechanical properties
Used in precision marine and engineering parts

View Cupro Nickel Forged Bar

Cupro Nickel 90/10 Forged Bar

Forged bars with enhanced strength and grain flow
Superior performance in high-pressure environments
Excellent resistance to seawater erosion
Used in offshore, shipbuilding, and power plants

CUPRO NICKEL 90/10 ROUND BAR EQUIVALENT GRADES

STANDARD	UNS	WNR.	EN	AFNOR
Cupro Nickel 90/10	C70600	2.0872	CuNi10Fe1Mn	Z2CND10-01

SPECIFICATION OF CUPRO NICKEL 90/10 ROUND BAR

Product Standard	ASTM B111 / ASTM B151 / ASME SB111
Dimension Standard	EN, DIN, JIS, ASTM, BS, ASME, AISI
Size	14 mm – 300 mm
Length	1 to 6 meters, Custom Cut Length
Form	Round, Square, Hex (AF), Rectangle, Billet, Ingot, Forging

CHEMICAL COMPOSITION OF CUPRO NICKEL 90/10 ROUND BAR

Grade	Cu	Ni	Fe	Mn	Pb	Zn
Cupro Nickel 90/10	88.0 min	9.0 – 11.0	1.0 – 1.8	1.0 max	0.05 max	1.0 max

MECHANICAL & PHYSICAL PROPERTIES OF CUPRO NICKEL 90/10 ROUND BAR

Density	Melting Point	Tensile Strength	Yield Strength (0.2% Offset)	Elongation
0.323 lb/in³ (at 68°F)	2260 °F (1240 °C)	50,000 psi (345 MPa)	20,000 psi (138 MPa)	30%

💡 Practical Difference in Use

Use Cupro Nickel 90/10 Round Bars when: good resistance to seawater corrosion, excellent thermal conductivity, and ease of fabrication are required. Cupro Nickel 90/10 is widely used for moderate marine environments where cost-effectiveness and reliability are important. → Example: seawater cooling systems, condenser components, marine fittings, and shipbuilding parts.

Bright Finished / Machined Cupro Nickel 90/10 Round Bars when: smooth surface finish, accurate dimensions, and consistent machining performance are essential. Bright bars are ideal for precision components used in heat transfer and marine systems. → Example: valve stems, precision shafts, bolts, bushings, and machined pipe fittings.

Applications of Cupro Nickel 90/10 Round Bars

Cupro Nickel 90/10 round bars are commonly used where reliable seawater resistance and good workability are required.

Seawater & Cooling Systems: Pipes, fittings, valves.
Marine Industry: Shipbuilding and onboard systems.
Heat Transfer Equipment: Condensers and exchangers.

When to Choose Cupro Nickel 90/10 Round Bars?

Selection depends on corrosion exposure, fabrication needs, cost considerations, and operating conditions.

Choose Cupro Nickel 90/10 Round Bars when:

Good resistance to seawater corrosion is required
Excellent thermal conductivity is important
Ease of fabrication and welding is needed
Moderate strength is sufficient
Cost-effective marine material is desired
Used in cooling and heat exchanger systems

Bright / Machined Cupro Nickel 90/10 Round Bars are preferred when:

Accurate dimensions are required
Smooth surface finish is essential
Precision machining or threading is involved
Uniform quality and performance are needed
Used in valves, fittings, and machined parts
Applied in performance-sensitive cooling systems

Industries That Use Cupro Nickel 90/10 Round Bars

Cupro Nickel 90/10 round bars are widely used in industries requiring reliable seawater performance with good economy.

Marine & Shipbuilding

Used in onboard seawater systems.

Uses

Piping, fittings, valves.

Why Cupro Nickel 90/10?

Reliable corrosion resistance and ease of fabrication.

Power & Cooling Systems

Used in thermal exchange applications.

Uses

Condensers, heat exchangers.

Why Cupro Nickel 90/10?

Good thermal conductivity and long service life.

General Engineering

Used in machined components.

Uses

Shafts, bushings, precision parts.

Why Cupro Nickel 90/10?

Balanced performance, machinability, and cost.

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