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Today, Copper Nickel Wire in India & abroad is in high demand across a wide variety of industries, from construction to medical, catering to industrial equipment. Cuni Wire has an Elastic Modulus (C71500 annealed) of 22000 ksi (152 GPa). The Poisson’s Ratio of Cupro Nickel Wire (C71500 annealed) is 0.325. For copper nickel welding electrodes, the most common welding technique applicable is SMAW (shielded metal arc), also known as MMA (manual metal arc). Copper-Nickel Tin Alloy Wire offers superb resistance to various kinds of corrosives. They are the first choice wires in merchant ships, condensers, seawater pipework, floating production storage, heat exchangers and offloading vessels. The Thermal Expansion Co-efficient of Cuni 90/10 Tig Wire (@20-300°C/68-572°F) is 9.00 µin/in °F (16.2 µm/m °C). The Machinability of Copper Nickel Alloy Wire (based on free-cutting brass = 100) is 20.
In 90/10 Copper Nickel Wire, there are four processes that need to be taken into consideration and these are soldering, mechanical couplings, welding and brazing. Copper Nickel Filler Wire has a Shear Modulus (C71500 annealed) of 8300 ksi (57.2 GPa). Copper Nickel Wire mesh has a chemical composition of Cu 71.25-76.5, Fe ≤ 0.20, Pb ≤0.050, Mn ≤ 1.0, Ni 23.5-26.5 and Zn ≤ 1.0. 70/30 Cuni Wire has a Thermal Conductivity of 32.9 W/mK (0.0900 BTU in/hr.ft². °F). When it comes to Copper Nickel Titanium Wire, there are no partitioning and cut pieces in the length of the wire. Such wire types are used to a great extent in offshore fire water systems, power plants and desalination. Not only are wires made from copper nickel stronger than copper, but they also have excellent formability, toughness and ductility. These Copper Nickel Welding Wire can retain their ductility and mechanical strength even at cryogenic temperatures.
Grades: Copper Nickel 90/10 (C70600 ), Cupro Nickel 70/30 (C71500), UNS C70620, C7060X, C71520, C71640, C70400, C71000, C72200, C72900, C71300, Cuni44 Copper Nickel Wire
0.023-1.27 mm (0.0009-0.050 inch)
Thickness: 0.023-0.635 mm (0.0009-0.025 inch)
Width: 0.038-2.032 mm (0.0015-0.041 inch)
Width/thickness ratio max 40, depending on alloy and tolerance
| End Product | Specification |
|---|---|
| Copper Nickel 70/30 Wire | MILITARY MIL-C-15726 |
| SWG | Inch | mm | m/kg | Ohms/m | ft/lb | Ohms/ft |
|---|---|---|---|---|---|---|
| 5
6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 | 0.2120
0.1920 0.1760 0.1600 0.1440 0.1280 0.1160 0.1040 0.0920 0.0800 0.0720 0.0640 0.0560 0.0480 0.0400 0.0360 0.0320 0.0280 0.0240 0.0220 0.0200 0.0180 0.0164 0.0148 0.0136 0.0124 0.0116 0.0108 0.0100 0.0092 0.0084 0.0076 0.0068 0.0060 0.0052 0.0048 0.0044 0.0040 0.0036 0.0032 0.0028 0.0024 0.0020 0.0016 0.0012 0.0010 | 5.38
4.88 4.47 4.06 3.66 3.25 2.95 2.64 2.34 2.03 1.83 1.63 1.42 1.22 1.02 0.91 0.81 0.71 0.61 0.56 0.51 0.46 0.42 0.38 0.35 0.31 0.29 0.27 0.25 0.23 0.21 0.19 0.17 0.15 0.13 0.12 0.11 0.10 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.03 | 5.3
6.4 7.7 9.3 11.5 14.5 17.6 22.0 28.1 37.1 45.8 58.0 75.7 103.1 148.4 183.2 231.9 302.9 412.3 490.7 593.7 733.0 883.0 1084.2 1284.0 1544.5 1764.9 2036.1 2374.8 2805.8 3365.7 4111.6 5135.9 6596.8 8782.7 10307.5 12266.8 14842.8 18324.5 23191.9 30291.4 41230.0 59371.2 92767.6 164920.1 237485.0 | 0.0474
0.0578 0.0688 0.0833 0.1028 0.1301 0.1584 0.1970 0.2518 0.3330 0.4111 0.5203 0.6796 0.9250 1.332 1.644 2.081 2.718 3.700 4.403 5.328 6.578 7.924 9.730 11.52 13.86 15.84 18.27 21.31 25.18 30.20 36.90 46.09 59.20 78.82 92.50 110.1 133.2 164.4 208.1 271.8 370.0 532.8 832.5 1480 2131 | 7.9
9.6 11.4 13.8 17.0 21.6 26.3 32.7 41.8 55.2 68.2 86.3 112.7 153.4 221 273 345 451 614 730 884 1091 1314 1614 1911 2299 2627 3030 3534 4176 5009 6119 7643 9818 13071 15340 18256 22090 27271 34515 45081 61360 88359 138060 245440 353434 | 0.0145
0.0176 0.0210 0.0254 0.0313 0.0397 0.0483 0.0601 0.0768 0.102 0.125 0.159 0.207 0.282 0.406 0.501 0.634 0.829 1.128 1.342 1.624 2.005 2.416 2.966 3.513 4.225 4.828 5.570 6.497 7.676 9.208 11.25 14.05 18.05 24.03 28.20 33.56 40.61 50.13 63.45 82.87 112.8 162.4 253.8 451.2 649.7 |
| Material Grade | Price |
|---|---|
| CuNi 90/10 Wire | US $4.00-$4.50 / Meter |
| CuNi 70/30 Wire | US $10.00-$40.00 / Kilogram |
| 66-30-2-2 Cu-Ni (Cunifer) Wire | US $5.00-$50.00 / Kilogram |
| 95/5 CuNi Wire | US $12.31-$18.18 / Kilogram |
| 80/20 CuNi Wire | US $10.00-$100.00 / Kilogram |
| Cu-Ni-Cr (Chromium Cupro Nickel Wire) | US $10-13 / Kilogram |
| Cu-Ni-Sn (Cupro Nickel Tin Alloy Wire) | US $15-25 / Kilogram |
| Cu-Ni-Al (Cupro Nickel Aluminum Alloy Wire) | US $9-10 / Kilogram |
| 75-25 Cupro Nickel Wire | US $9.0-10.25 / Kilogram |
| 55-45 Cupro Nickel Wire | US $9.0-10.25 / Kilogram |
| UNS C72150 (CuNi44) Copper-Nickel Wire | US $15.00-$30.00 / Kilogram |
| Copper Nickel 23 Wire (CuNi23Mn) | US $25.00-$38.00 / Kilogram |
| Copper Nickel 6 Wire (Alloy 60 Wire) | US $14.00-$20.00 / Kilogram |
Above is an approx price, please contact for final price of Copper Nickel Wire
COMPOSITION
80-20 COPPER-NICKEL, C71000
| ELEMENT | PERCENT | ||
|---|---|---|---|
| NOMINAL | MINIMUM | MAXIMUM | |
| Copper | – | 74.0 | – |
| Lead | – | – | .05 |
| Iron | – | – | 1.0 |
| Zinc | – | – | 1.0 |
| Nickel (including Cobalt) | 21.0 | 19.0 | 23.0 |
| Manganese | – | – | 1.0 |
PHYSICAL PROPERTIES
80-20 COPPER-NICKEL, C71000
| HEAT TREATED CONDITION | ENGLISH UNITS | METRIC UNITS |
|---|---|---|
| Melting Range | 2100-2190°F | 1150-1200°C |
| Density | .323 lb/cu in. @ 68°F | 8.94 gm/cm@ 20°C |
| Specific Gravity | 8.94 fixed | 8.94 |
| Coefficient of Thermal Expansion | .0000091 per °F (68-572°F) | .0000164 per °C (20-300°C) |
| Thermal Conductivity | 21 BTU/sq ft/ft/hr/°F @ 68°F | .087 cal/sq cm/cm/sec/°C @ 20°C |
| Electrical Resistivity | 162 Ohms circ mil per ft @ 68°F | 27 microhm – cm @ 20°C |
| Electrical Conductivity | 6.4% Copper IACS @ 68°F | .037 megohm cm @ 20°C |
| Specific Heat | .09 BTU/lb/°F @ 68°F | ..09 cal/gm/°C @ 20°C |
| Modulus of Elasticity (tension) | 20,000 KSI | 14,100 kg/sq mm |
| Modulus of Rigidity (torsion) | 7,500 KSI | 5,200 kg/sq mm |
| Annealing Temperature | 1200-1500°F | 650-825°C |
MECHANICAL PROPERTIES
80-20 COPPER-NICKEL, C71000
For Round, Half Round and Square Wire
| DESIGNATION | TENSILE STRENGTH | YIELD STRENGTH .2% Offset | % ELONGATION in 10 in. | |||
| STD | FORMER | KSI* nominal | MPa** nominal | KSI* | MPa** | |
| – | Annealed (A) | 48 | 330 | 18 | 124 | 45 |
| H01 | Quarter Hard (1/4H) | 55-62 | 380-495 | 65 | 448 | 7.5 |
| H02 | Half Hard (1/2H) | 67-83 | 460-570 | 73 | 503 | 5.5 |
| H04 | Hard (H) | 77-92 | 530-635 | 82 | 505 | 5 |
| H08 | Spring up to .0253″ (.643mm) .0253-.0625″ (1.588mm) | 90 min 88 min | 620 min 605 min | 855 | 586 | 5 |
| H14 | Extra Spring .020 to .040 | 100-115 | 690-790 | 90 | 620 | 3 |
MECHANICAL PROPERTIES
80-20 COPPER-NICKEL, C71000
| DESIGNATION | TENSILE STRENGTH | ||
| STD. | FORMER | KSI* | MPa** |
| H01 | Quarter Hard (1/4HT) | 47-63 | 324-434 |
| H02 | Half Hard (1/2HT) | 56-70 | 386-482 |
| H04 | Hard (HT) | 67-79 | 461-544 |
| H06 | Extra Hard (XH) | 72-84 | 496-579 |
| H08 | Spring | 76-87 | 524-600 |
* 1 KSI equals 1,000 PSI
** 1 KSI equals 6.894,757 MPa
| Hs Code | Description | No of Shipments |
|---|---|---|
| 7408 | Copper Wire | |
| 74082290 | Other | 53 |
| 74081910 | Copper weld wire | 4 |
| Copper Nickel Zinc Wire | ASTM SB206 Copper Nickel Wire |
| Copper Nickel Alloy Wire | Copper Nickel Welding Electrode |
| Cupro Nickel Wire Rope | Cu-Ni Wire Bobbin |
| ASME SB206 Cu-Ni Wire | ASME SB206 Nickel Coil Wire |
