Nickel Wire
MWS offers many nickel based alloys that are used in RTD sensors, resistors, rheostats, voltage control relays, heating elements, potentiometers, and other components. Engineers design around properties unique to each alloy. These include resistance, thermoelectric properties, high tensile strength, and coefficient of expansion, magnetic attraction, and resistance to oxidation or corrosive environments. Wires can be provided as uninsulated or with film coating. Most alloys can also be made as flat wire.
High Strength Nickel Alloys
Monel 400
This material is noted for its toughness over a considerable range of temperatures, and has excellent resistance to many corrosive environments. Monel 400 can be hardened only by cold-working. It is useful at temperatures up to 1050° F, and has very good mechanical properties at temperatures below zero. Melting point is 2370-2460⁰ F.
Inconel* 600
Resists corrosion and oxidation to 2150⁰ F. Provides springs with high resistance to corrosion and heat up to 750⁰ F. Tough and ductile down to -310⁰ F is nonmagnetic, easily fabricated and welded. Used for structural parts, cathode ray tube spiders, thyratron grids, sheathing, tube supports, spark plug electrodes.
Inconel* X-750
Age hardenable, nonmagnetic, corrosion and oxidation resistant (high creep-rupture strength to 1300⁰ F). Heavy cold working develops tensile strength of 290,000 psi. Stays tough and ductile to -423⁰ F. Resists chloride-ion stress-corrosion cracking. For springs operating to 1200⁰ F and tube structural parts.
* Registered trademark of Inco family of companies
Nickel Alloy Data
Properties
| MWS Alloy | Chemical Composition | Resistivity at 20°C | Coefficient of Linear Expansion Between 20 - 100°C | Tensile Strength (KPSI AT 20°C) | Specific Gravity | Pounds Per Cubic Inch | Magnetic Attraction | Approx. Melting Point (°C) | ||
|---|---|---|---|---|---|---|---|---|---|---|
| Ω / CMF | TCR 0-100°C | MIN. | MAX. | |||||||
| 875 | 22.5 Cr, 5.5 Al, .5 Si, .1 C, bal Fe | 875 | .00002 | .000012 | 105 | 175 | 7.10 | .256 | Strong | 1520 |
| 800 | 75 Ni, 20 Cr, 2.5 Al, 2.5 Cu | 800 | .0002 | .000014 | 100 | 200 | 8.10 | .293 | None | 1350 |
| 675 | 61 Ni, 15 Cr, bal Fe | 675 | .00013 | .0000137 | 95 | 175 | 8.247 | .2979 | Faint | 1350 |
| 650 | 80 Ni, 20 Cr | 650 | .00010 | .0000132 | 100 | 200 | 8.412 | .3039 | None | 1400 |
| Alloy 42 | 42 Ni, bal Fe | 390 | .0010 | .0000029 | 70 | 150 | 8.10 | .295 | Strong | 1425 |
| 294 | 55 CU, 45 NI | 294 | .00002* | .0000149 | 60 | 135 | 8.90 | .321 | None | 1210 |
| 294R | 29 Ni, 17 Co, bal Fe | 294 | .0033 | .0000033 | 65 | 150 | 8.36 | .302 | Strong | 1450 |
| Manganin | 13 Mn, 4 Ni, bal Cu | 290 | .000015** | .0000187 | 40 | 90 | 8.192 | .296 | None | 1020 |
| Alloy 52 | 50.0 NI, Bal Fe | 260 | .0029 | .0000049 | 70 | 150 | 8.25 | .301 | Strong | 1425 |
| 180 | 23 Ni, bal Cu | 180 | .00018 | .0000159 | 50 | 100 | 8.90 | .321 | None | 1100 |
| 120 | 70 Ni, 30 Fe | 120 | .0045 | .000015 | 70 | 150 | 8.46 | .305 | Strong | 1425 |
| 90 | 12 Ni, balCu | 90 | .0004 | .0000161 | 35 | 75 | 8.90 | .321 | None | 1100 |
| 60 | 6 Ni, bal Cu | 60 | .0005 | .0000163 | 35 | 70 | 8.90 | .321 | None | 1100 |
| 30 | 2 Ni, Bal Cu | 30 | .0013 | .0000165 | 30 | 60 | 8.90 | .321 | None | 1100 |
| Nickel 205 | 99 Ni | 57 | .0048 | .000013 | 60 | 135 | 8.90 | .321 | Strong | 1450 |
| Nickel 270 | 99.97 Ni | 45 | .0067 | .000013 | 48 | 95 | 8.89 | .321 | Strong | 1452 |
Trade Name Cross Reference
| MWS Wire | Carpenter Tech. | Driver-Harris | Harrison | Hoskins | Jelliff | Kanthal | Molecu |
|---|---|---|---|---|---|---|---|
| MWS - 875 | Alchrome 875 | - | HAI-FeCr Al25 | Alloy 875 | - | Kanthal A-1 | - |
| MWS - 800 | Evanohm | Karma | HAI-431 | Chromel R | Alloy 800 | Nikrothal L | Moleculoy |
| MWS - 675 | Tophet C | Nichrome | HAI-NiCr 60 | Chromel C | Alloy C | Nikrothal 6 | Electroloy |
| MWS - 650 | Tophet A | Nichrome V | HAI-NiCr 80 | Chromel A | Alloy A | Nikrothal 8 | Protoly |
| MWS - 294 | Cupron | Advance | HAI-CuNi 102 | Copel | Alloy 45 | Cuprothal 294 | Neutroloy |
| MWS - 294R | Kovar | - | HAI-373 | - | - | - | - |
| MWS - 180 | 180 Alloy | Midohm | HAI-180 | Alloy 380 | Alloy 180 | Cuprothal 180 | - |
| MWS - 120 | Balco | Hytemo | HAI-380 | - | Alloy 120 | - | Pelcoloy |
| MWS - 90 | 90 Alloy | #95 Alloy | HAI-90 | Alloy 290 | Alloy 90 | Cuprothal 90 | - |
| MWS - 60 | 60 Alloy | Lohm | HAI-60 | Alloy 260 | Alloy 60 | Cuprothal 60 | - |
| MWS - 30 | 30 Alloy | #30 Alloy | HAI-30 | Alloy 230 | Alloy 30 | Cuprothal 30 | - |