Manganin CuMn12Ni Wire, Strip and Rod
Request Manganin Wire and Strip Pricing
Auremo LLC, 505 Ellicott St, Buffalo, NY 14203, accepts manganin alloy inquiries from U.S. manufacturers and laboratories. Call +1 716 910 04 21 or send the grade, form, dimensions, electrical requirements and quantity.
Available product forms
- resistance wire and coil
- strip and foil
- sheet and plate by request
- rod, bar and custom dimensions
Information to include in your request
Please provide the governing standard or grade, product form, dimensions and tolerances, quantity, delivery ZIP code and required documentation. Pricing and availability are confirmed individually for each inquiry.
Frequently asked questions
How is the price for manganin CuMn12Ni resistance alloy confirmed?
Prices are provided on request and depend on the exact grade or standard, dimensions, tolerances, quantity, documentation and freight requirements.
Can non-standard dimensions be requested?
Yes. Include a drawing or dimensional requirements. Availability and manufacturing or sourcing feasibility are confirmed with the quotation.
What is the typical delivery time in the United States?
Typical U.S. delivery is 2–3 weeks after order confirmation. The final lead time and delivery terms are stated in the quotation for the selected material, quantity and destination.
Related materials and references
Constantan alloy · Constantan sheet and strip · Nichrome alloy
Equivalent
| Grade | analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| MNMts3-12 | 2.1362 | CuMn12Ni | Buy from stock, view availability |
Manganin alloy and purchasing requirements
Commercial designations can include CuMn12Ni, CuNi3Mn12 and related compositions, so the requested chemistry or governing standard should accompany the inquiry. Specify wire diameter or strip, sheet and rod dimensions, soft or hard condition, insulation if applicable, resistance or temperature-coefficient requirements, certificates, quantity and destination ZIP code.
General characteristics
Products made of manganin are getting more popularity nowadays. Manganin is a special alloy on nickel and manganese basis. Depending on percentage content of additional elements, there exit varieties of manganin. The main components of alloy are cobalt and nickel (2,5 - 3,5%) (Co+Ni), manganese (11,5 - 13,5%) and copper (85%). The main advantages of alloy are low temperature coefficient of resistance and relatively small thermo-electromotive force in a pair with copper.
Maganin CuMn12Ni
| Cu | Fe | Mn | Pb%, S% | Ni+Co | Residual elements |
| Basis > 82% | ≤ 0.2 | 11,5 - 13,5 | up to 0,02% | 2,5 - 3,5 | ≤ 0.4 |
Manganin CuMn12Ni
| Cu | Mn | Fe | Al | Ni+Co | Residual elements |
| 81.7 - 85.2 | 11.5 - 13.5 | 0.2 - 0.5 | 0.2 - 0.4 | 2.5 - 3.5 | ≤ 0.4 |
Main properties
When starting to work with manganin, you need to become familiar with its properties. It should be kept in mind that a maximum permissible operating temperature must not exceed + 300 ° C. In order to achieve higher efficiency in usage, you have to control an atmospheric humidity level because manganin is very sensitive to changes of such kind. For this reason, there can be a risk of corrosion propagation, if atmosphere is saturated with water steam and acids. Due to a mechanical stress to which is exposed a wire by coiling on a core, there is arises a changing of structure. It leads to rearrangement of molecules. Therefore, manganin may change its resistance after prolonged usage. Considering all of the above mentioned, you can extend an operational use of products made of this material.
Manufacture
The main type of mill-products is wire for alloy grades CuNiMnAlFe 3−12−0,3−0,3 and CuMn12Ni. Manufacture complies with GOST 492−2006 that defines requirements to nickel alloys as well as to nickel and nickel-copper alloys, which are exposed to pressure treatment. In order to stabilize electrical characteristics in vacuum, alloys undergo special heat treatment. As a result of this, alloys can be used up to a maximum temperature of + 200 ° C, unlike non-stabilized grades that can withstand only 60−80°C. Thanks to curried out treatment, all properties of alloys are stabilized. At that, there increases a degree of alloy homogeneity.
Range of products
Companies manufacture hard-drawn and soft wires, diameter of which ranges from 0.02 to 6 mm. They also manufacture such types of strips width of which does not exceed 270 mm and which thickness is ≤ 0.08 mm. These companies call manganin alloys as its critical raw material that perfectly suits for a manufacture of these products. Popular types of coils wire are presented in wide range. The most requested products are: coils wires of enamel insulation; insulated wires, coating of which is a silk; wire with one layer of silk. At that, insulation on these products has an enamel coating.
Application
Considering all positive qualities of manganin, as well as possible problems that may arise during a use of manganin, let us examine its sphere of application, which is quite extensive. This alloy is commonly used in a manufacture of electrically measuring instruments. Shunts and bridge connections are manufactured with a help of this material. Manganin has low resistance at room temperatures. Therefore, it is indispensable in engineering and manufacture of high-accurate instruments. Resistor is an example of such tools.
