Rupal Metals, located in Delhi, India, has made a name for itself as a top-notch manufacturer and supplier of high-quality Copper Nickel Round Bars. These bars are designed to deliver exceptional performance, precision, and corrosion resistance across a range of industrial applications. Available in popular Cu-Ni grades like 90/10 and 70/30, they are built to withstand tough environments, including marine, chemical, and power generation sectors. With cutting-edge manufacturing techniques, rigorous quality control, and a commitment to customer satisfaction, Rupal Metals provides Copper Nickel round bars that comply with both domestic and international standards, establishing them as a reliable partner for premium non-ferrous metal solutions.
Copper Nickel Round Bars are typically made in 90/10 (90% copper, 10% nickel) and 70/30 (70% copper, 30% nickel) alloy compositions. To boost their strength and corrosion resistance, small amounts of iron and manganese are added. These round bars are celebrated for their remarkable resistance to seawater corrosion, erosion, and stress corrosion cracking. Their mechanical properties include tensile strength ranging from 275 to 520 MPa, yield strength of 105 to 260 MPa, and elongation of up to 30%. With outstanding ductility, weldability, and thermal conductivity, they are perfect for heavy-duty and high-performance applications.
| 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 |
| 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 |
| 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 % |
| 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 |
| STANDARD | WERKSTOFF NR. | UNS |
| Cupro Nickel 90/10 | 2.0872 | C70600 |
| Cupro Nickel 70/30 | 2.0882 | C71500 |
| 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 |
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.
Copper Nickel Round Bars find extensive use in the marine industry for seawater piping systems, heat exchanger components, pump shafts, and propeller shafts, thanks to their resistance to saltwater corrosion and biofouling. In the power generation and desalination sectors, they are utilized in heat exchangers and condensers that face high-pressure and high-temperature conditions. Additionally, these bars are employed in chemical processing plants for valve components, fittings, and flanges. Their excellent machinability and structural integrity make them ideal for offshore platforms, hydraulic systems, and architectural applications where durability is key.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Rupal Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Delhi, India
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