Marcus Metals is a metal producing and supplying company with head offices in Midland, UK. The company’s reputation for excellence places the company at the top regarding the provision of all forms of metals, copper, nickel, and alloys, among others. This enables the company to provide excellent alloy copper-nickel in the supply of hardwearing and corrosion-resistant material for industrial applications. Among their products, the copper-nickel square bars are the finest and strongest, reliable and versatile, and are quite applicable in marine, chemical, and aerospace industries, with Marcus Metals continuing to satisfy the increasing demands of its clients with precision engineering.
Copper-nickel square bars are available in two forms: 90% copper and 10% nickel (90/10), and 70% copper and 30% nickel (70/30). They both have a higher tensile strength and corrosion-resistance properties than other products. The 90/10 alloy is also resistant to seawater corrosion and has low biofouling, which is ideal for marine applications. The 70/30 alloy will provide greater tensile strengths and higher resistance to SCC. The mechanical properties of these bars are tensile strength in the range of 300 to 550 MPa, elongation up to 40%, and have a hardness between 150 and 200 HB. It is also a great product because of good machinability and good thermal conductivity, applicable in many industries.
| Standard | ASTM B111, ASME SB111 |
| Round Bar Size | 3mm~ 800mm |
| Square Bar Size | 4mm* 4mm ~100mm* 100mm |
| Flat Bar Size | 2mm ~ 100mm |
| Hex Bar Size | 2mm ~ 100mm |
| Angle Size | 3mm* 20mm* 20mm~ 12mm* 100mm* 100mm |
| Thickness | 50 mm to 6000 mm Long |
| Length | 1 To 6 Meters, Custom Cut Length |
| Form | Round, Square, Hex(A/F), Rectangle, Billet, Ingot, Forging Etc |
| Grade | Mn | Cu | Pb | Fe | Ni | Zn |
|---|---|---|---|---|---|---|
| 90/10 | 1.0 max | 88.6 min | 0.5 max | 1.8 max | 9-11 max | 1 max |
| 70/30 | 1 max | 65.0 min | 0.5 max | 0.4-1.0 | 29-33 | 1 max |
| Grade | Melting point | Density | Tensilestrength | Elongation | Yieldstrength(0.2%Offset) |
|---|---|---|---|---|---|
| 90/10 | 2260°F | 8.8g/cm3 | 50000 PSi | 30% | 20000 PSi |
| 70/30 | 2260°F | 0.323 lb/in3 at 68°F | 50000 PSi | 30% | 20000 PSi |
| BD | Bright drawn | SRE | Slit rolled edge |
| CF | Cold finished | HRAP | Hot rolled annealed / pickled |
| CG | Centreless ground | HF | Hot finished |
| ST | Smooth turned | PR | Peeled / reeled |
| CD | Cold drawn | P | Polished |
| P&T | Peeled / turned | RT | Rough turned and peeled |
| Metric | US Rods | ASTM/ Canadian | Japanese | ||||
|---|---|---|---|---|---|---|---|
| Rods Size | Diam. (mm) | Rods Size | Diam. (Inch) | Rods Size | Diam. (mm2) | Rods Size | Diam. (mm) |
| 5 | 5 | #2 | 0.250 | 10M | 100 | 6 | 6 |
| 5.5 | 5.5 | #3 | 0.375 | 15M | 200 | 10 | 10 |
| 6 | 6 | #4 | 0.500 | 20M | 300 | 13 | 13 |
| 7 | 7 | #5 | 0.600 | 25M | 500 | 16 | 16 |
| 8 | 8 | #6 | 0.750 | 30M | 700 | 19 | 19 |
| 9 | 9 | #7 | 0.875 | 35M | 1000 | 22 | 22 |
| 10 | 10 | #8 | 1.000 | 45M | 1500 | 25 | 25 |
| 11 | 11 | #9 | 1.125 | 55M | 2500 | 29 | 29 |
| 12 | 12 | #10 | 1.250 | 32 | 32 | ||
| 14 | 14 | #11 | 1.375 | 35 | 35 | ||
| 16 | 16 | #12 | 1.500 | 38 | 38 | ||
| 18 | 18 | #13 | 1.600 | 41 | 41 | ||
| 20 | 20 | #14 | 1.750 | 44 | 44 | ||
| 22 | 22 | #15 | 1.875 | 48 | 48 | ||
| 25 | 25 | #16 | 2.000 | 51 | 51 | ||
| 28 | 28 | #18 | 2.250 | 57 | 57 | ||
| 32 | 32 | ||||||
| 36 | 36 | ||||||
| 40 | 40 | ||||||
| 44 | 44 | ||||||
| 50 | 50 | ||||||
| Grade | UNS | Werkstoff Nr. |
| 90/10 | C70600 | 2.0872 |
| 70/30 | C71500 | 2.0882 |
Yes, Copper Nickel Square Bars are customizable. They can be tailored in terms of size, shape, length, and specific alloy composition to meet the precise requirements of various industrial applications.
Copper-nickel square bars are widely used in industries requiring high resistance to corrosion, especially in marine and chemical environments. In common usage, it has been used for seawater systems, heat exchangers, shipbuilding, and desalination plants in applications requiring resistance to corrosion by seawater and biofouling. They are also used in the manufacture of valves, pumps, and fittings and in the aerospace and automobile industries for their strength and thermal conductivity. Copper-nickel square bars are used in most electrical and electronic components, including connectors and bus bars, because they possess excellent electrical conductivity and resistance to oxidation.
We provide products that come with both mill test certificates and third-party test certificates, ensuring the highest standards of quality and compliance.
Marcus Metals is a leading manufacturer, supplier, and exporter of high-quality bars, rods, and forgings, catering to various industries in Midland, UK
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