Copper Nickel Round Bar
Copper Nickel Round Bar Grades, Sizes & Supply
Stellar Alloys Steel Pipes and Tubes is a leading manufacturer and supplier of high-quality Copper Nickel Round Bar to ASTM B151 / ASME SB151 in India, offering CuNi 90/10 and CuNi 70/30 grades for marine, offshore, and heat exchanger applications. We specialize in producing premium-grade cupro nickel round bar, copper nickel rod, and copper nickel welding rod that meet international standards and industrial requirements. Our products are widely recognized for their excellent corrosion resistance, superior strength, and durability in marine and high-temperature environments.
As a trusted copper nickel round bar supplier, we offer a wide range of copper nickel alloy rod options, including CuNi 90/10 round bar and CuNi 70/30 round bar, suitable for various industrial applications. These materials are extensively used in shipbuilding, heat exchangers, condensers, and offshore engineering due to their resistance to seawater corrosion and biofouling.
Our copper nickel TIG rod and copper nickel filler rod are manufactured with precision to ensure high weldability and performance in critical applications. We maintain strict quality control throughout the production process to deliver consistent and reliable products.
At Stellar Alloys Steel Pipes and Tubes, we are committed to offering competitive copper nickel round bar price options while maintaining superior quality. Whether you are looking to buy copper nickel rod online or need bulk supply for industrial use, we ensure timely delivery and customer satisfaction across India and global markets.
Table of Contents
- Trust & Quality Assurance
- Types of Copper Nickel Round Bar
- Specification of Copper Nickel Round Bar
- Chemical Composition of Copper Nickel Round Bar
- Mechanical Properties of Copper Nickel Round Bar
- Copper Nickel Round Bar Sizes
- Copper Nickel Round Bar Price List
- Applications & Uses of Copper Nickel Round Bar
- Copper Nickel Welding Rod & Filler Rod
- FAQs About Copper Nickel Round Bar
Trust & Quality Assurance
Stellar Alloys is an ISO 9001:2015 certified manufacturer supplying Copper Nickel Round Bars with EN 10204 3.1 / 3.2 Mill Test Certificates upon request. All materials are manufactured as per ASTM B151 / ASME SB151 and undergo strict inspection for chemical composition, mechanical properties, and dimensional accuracy before dispatch.
We have successfully supplied materials to marine and offshore projects across India and international markets, ensuring reliability in critical applications.
Types of Copper Nickel Round Bar
CuNi 90/10 Round Bar
CuNi 70/30 Round Bar
CuNi 90/10 Round Bar
CuNi 90/10 round bars contain 90% copper and 10% nickel, offering excellent resistance to corrosion, especially in seawater environments. These bars are widely used in marine and desalination applications.
CuNi 70/30 Round Bar
CuNi 70/30 round bars consist of 70% copper and 30% nickel, providing higher strength and enhanced resistance to aggressive environments. They are ideal for high-pressure and high-temperature applications
Specification of Copper Nickel Round Bar
- Standard: ASTM B151 / ASME SB151
- Material Grades: CuNi 90/10, CuNi 70/30
- Form: Round Bar, Rod
- Length: Single Random, Double Random, Cut Length
- Finish: Bright, Polished, Black
- Diameter: 5mm to 500mm
Chemical Composition of Copper Nickel Round Bar
Element | CuNi 90/10 (%) | CuNi 70/30 (%) |
Copper (Cu) | Balance | Balance |
Nickel (Ni) | 10 | 30 |
Iron (Fe) | 1.0 – 1.8 | 0.4 – 1.0 |
Manganese (Mn) | 1.0 max | 1.0 max |
Mechanical Properties of Copper Nickel Round Bar
Property | CuNi 90/10 | CuNi 70/30 |
Tensile Strength | 275 MPa | 360 MPa |
Yield Strength | 105 MPa | 150 MPa |
Elongation | 30% | 30% |
Copper Nickel Round Bar Sizes
We offer copper nickel round bars in a wide range of sizes:
- Diameter: 5mm to 500mm
- Length: Up to 6 meters or customized
- Forms: Forged, Rolled, Cold Drawn
Our stainless steel round bars serve mission-critical applications across multiple industries due to their exceptional strength, corrosion resistance, and reliability in harsh environments:
Common applications include:
- Oil and Gas Industry – Downhole pump shafts, valve stems, instrumentation components, and wellhead equipment
- Chemical Processing Plants – Reactor vessel shafts, agitator components, pump impellers, and corrosion-resistant fasteners
- Marine and Offshore Structures – Propeller shafts, deck equipment, rigging hardware, and saltwater-resistant fittings
- Automotive and Mechanical Engineering – Engine components, transmission shafts, precision machined parts, and suspension elements
- Pump and Valve Manufacturing – Valve stems, pump shafts, piston rods, and high-pressure fittings
- Construction and Structural Frameworks – Architectural supports, railing systems, and load-bearing structural members
- Food Processing Equipment – Mixer shafts, conveyor components, sanitary fittings, and hygienic processing machinery
- Aerospace Components – Landing gear parts, high-strength fasteners, precision machined aircraft components
Copper Nickel Round Bar Price List
The copper nickel round bar price depends on:
- Grade (90/10 or 70/30)
- Size and dimensions
- Quantity ordered
- Market raw material rates
Contact us for the latest price list and bulk discounts.
Applications & Uses of Copper Nickel Round Bar
Copper nickel round bars are widely used in:
- Marine Engineering & Shipbuilding — Shaft sleeves, pump shafts, valve stems, and propeller hubs where seawater corrosion and biofouling resistance are mandatory
- Heat Exchangers & Condensers — Tube sheets, baffles, and support plates in steam condensers and process heat exchangers operating in brackish and seawater cooling circuits
- Power Generation Plants — Condenser water boxes and piping systems in coastal and offshore power stations
- Offshore Oil & Gas — Valve bodies, pump shafts, and structural components in subsea and topside installations requiring resistance to chloride stress corrosion
- Desalination Plants — Multi-stage flash and reverse osmosis plant components where continuous seawater contact demands long service life
- Chemical Processing Equipment — Agitator shafts, stirrer rods, and reactor internals in dilute acid and chloride environments
Their excellent resistance to seawater corrosion makes them ideal for harsh environments.
Copper Nickel Welding Rod & Filler Rod
Stellar Alloys supplies high-performance Copper Nickel TIG Welding Rod and Copper Nickel Filler Rod for GTAW and GMAW welding applications. Our copper nickel welding rod products conform to AWS A5.7 ERCuNi specifications.
Applications include:
- Welding of CuNi 90/10 and 70/30 piping systems
- Repair of marine and offshore components
- Fabrication of condensers and heat exchangers
Available sizes: 1.0mm, 1.6mm, 2.4mm, 3.2mm
Contact us for copper nickel TIG welding rod supplier pricing and availability.
FAQs About Copper Nickel Round Bar
A copper nickel round bar is a solid cylindrical metal made from copper-nickel alloy known for corrosion resistance and durability.
CuNi 70/30 has higher nickel content, offering better strength and corrosion resistance compared to 90/10.
Copper nickel rods are primarily used for shaft sleeves and pump components in marine engineering, tube sheets in heat exchangers and condensers, valve bodies in offshore oil and gas installations, and agitator shafts in chemical processing plants where chloride corrosion resistance is required.
Yes, we supply copper nickel TIG welding rod and copper nickel filler rod for industrial welding needs.
Both terms describe the same consumable. A copper nickel TIG rod (AWS A5.7 ERCuNi) is the filler metal used in GTAW/TIG welding of copper nickel base metals. ‘Filler rod’ and ‘welding rod’ are used interchangeably in industry. The CuNi 70/30 filler rod is specified for high-strength joints; the CuNi 90/10 version is used for maintenance welding in marine piping systems.