Cu Ni 70 30 Round Bars are high-performance copper-nickel alloy products known for their excellent corrosion resistance and durability in harsh environments. These round bars are widely used in marine, offshore, and industrial applications where resistance to seawater and aggressive conditions is essential. Sumit Impex, a trusted manufacturer and supplier in Mumbai, India, offers premium-quality Copper Nickel 70 30 Round Bars that provide reliable strength, long service life, and excellent performance in demanding engineering systems.
Sumit Impex is a Supplier of Cu-ni 70/30 Round Bars, Biggest Stockist of Cu-ni 70/30 Round Bars as per Standards in Mumbai, India.
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The Cu Ni 70 30 Round Bar is manufactured from copper-nickel alloy UNS C71500 / Werkstoff 2.0882, which contains approximately 70% copper and 30% nickel along with small amounts of iron and manganese. This balanced composition enhances resistance to seawater corrosion, erosion, and biofouling, making the material particularly suitable for marine and offshore environments. Because of these properties, Copper Nickel C71500 Round Bars are commonly used in shipbuilding, offshore piping systems, and equipment exposed to saltwater conditions.
Due to their excellent mechanical strength and corrosion resistance, 70 30 Cupro Nickel Round Bars are widely used in industries such as power generation, chemical processing, oil and gas, and heat exchanger manufacturing. The alloy also provides good formability, weldability, and resistance to stress corrosion cracking, allowing it to perform reliably in high-temperature and high-pressure environments. Variations such as Cu-Ni 70/30 Bright Bars, Copper Nickel 70 30 Rods, and UNS C71500 Forged Bars are commonly used in industrial equipment, condensers, and marine engineering components.

Cupro-Nickel 70/30 Round Bar Specifications
| Specifications | ASTM / ASME |
| Dimension Standard | EN, DIN, JIS, ASTM, BS, ASME, AISI |
| Bar Diameter | 3 ~ 800mm |
| Hex Bar size | 2-100mm A/F |
| Flat bar size | Thickness: 2 -100mm. Width: 10 to 500mm. |
| Square bar size | 4 to 100mm |
| Rectangular Bars | Size: 33 x 30mm to 295 x 1066mm. Thickness: 3.0 to 12.0mm. |
| Hollow Bars | 32mm OD x 16mm ID to 250mm OD x 200mm ID) |
| Billet Size | 1/2 to 495mm Diameter |
| Finish | Cold (bright) drawn, centreless ground, hot rolled, smooth turned, peeled, slit rolled edge, hot rolled annealed, Rough Turned, Bright, Polish, Grinding, Centreless Ground & Black |
| Tolerance | H8, H9, H10, H11, H12, H13K9, K10, K11, K12 or as per clients requirements |
| Bar Surface | Bright, Hot Rolled Pickled, Cold Drawn, Sand Blasting Finished, Polished, Hairline |
| Rolled Bars Condition | Hardened & tempered, annealed |
| Cold Rolled Bar Technique | Hot Rolled, Cold Drawn, Cold Rolled, Forged Round Bar, Rod |
| Form | Round, Rod, T-Bar, Channel Bar, Precision Ground Bar, Flat Bar, Square, Blocks, Round Rod, Rings, Hollow, Triangle, Rectangle, Hex (A/F), Threaded, Half Round Bar, Profiles, Billet, Ingot, I/H Bar, Forging etc. |
Types of Cupro-Nickel 70/30 Round Bar
Square Bar
Square Bar
Flat Bar
Flat Bar
Hex Bar
Hex Bar
Bright Bar
Bright Bar
Threaded Rod
Threaded Rod
Rectangular Bar
Rectangular Bar
Polished Bar
Polished Bar
Forged Bars
Forged Bars
Cupro-Nickel 70/30 Round Bars Equivalent Grades
| STANDARD | WERKSTOFF NR. | UNS |
| Copper Nickel 70/30 | 2.0882 | C71500 |
Cupro-Nickel 70/30 Round Bar Chemical Composition
| Grade | Cu | Pb | Fe | Zn | Ni | Mn |
| Copper Nickel 70/30 | 65.0 min | .05 max | 0.4-1.0 | 1 max | 29-33 | 1 max |
Cupro-Nickel 70/30 Round Bars Mechanical Properties
| Density | Melting Point | Tensile Strength | Yield Strength (0.2%Offset) | Elongation |
| 0.323 lb/in3 at 68 F | 2260 F | 50000 psi | 20000 psi | 30 % |
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Cupro-Nickel 70/30 Round Bars Applications
Export & Supply Destinations Of Cupro-Nickel 70/30 Bars
India, Lebanon, Thailand, Egypt, Israel, Bangladesh, Sri Lanka, Maldives, Hong Kong, Nepal, Vietnam, British, Iran, Jordan., Philippines, Singapore, Taiwan, Mongolia, Russia, North Korea, Iraq, Kyrgyzstan, Indonesia, Saudi Arabia, Armenia, Japan, Bahrain, Kuwait, Bhutan, Oman, China, Malaysia, Turkey, Macau, Myanmar, South Korea, Qatar, United Arab Emirates, Afghanistan, Azerbaijan.
Netherlands, Belarus, Denmark, Luxembourg, Slovakia, Czechia/Czech Republic, Azerbaijan, Switzerland, Norway, United Kingdom, Bulgaria, Ireland, Italy, Liechtenstein, Croatia, Russia, Spain, Turkey., Cyprus, Poland, Austria, Greece, Belgium, Lithuania, France, Ukraine, Sweden, Finland, Estonia, Moldova, Latvia, Monaco, Malta, Hungary, Portugal, Germany, Romania, Serbia
Cameroon, Egypt, Madagascar, Rwanda, Mauritania, Ethiopia, Zambia, Algeria, Liberia, Gambia, Uganda, Kenya, Central African Republic, Zimbabwe, Mozambique, Mauritius, Botswana, Senegal, Seychelles, Niger, Namibia., Eswatini, South Africa, Nigeria, Burundi, Tanzania, Angola, Burkina Faso, Libya, Morocco, Tunisia.
El Salvador, Grenada, United States of America, Mexico, Dominica, Costa Rica, Honduras, Dominican Republic, Trinidad and Tobago, Haiti, Antigua and Barbuda, Panama, Belize, Canada, Guatemala, Saint Lucia, Nicaragua, Jamaica, Saint Vincent and the Grenadines, Barbados, Bahamas, Cuba.
Ecuador, Paraguay, Venezuela, Chile, Peru, Bolivia, Brazil, Colombia, Argentina, Guyana, Suriname, Uruguay.













