Cunial - CuNiAl wire, round, sheet, strip
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| МНА13-3 | Delivery from the stock, in stock | ||||
| МНА6-1.5 | Delivery from the stock, in stock |
General characteristics
Cunial is an alloy based on copper with aluminum Al (1 to 4%) and Nickel Ni (4 to 20%). This alloy is not inferior to many structural alloys for strength. It is also characterized by high corrosion resistance in sea water. Cunial is of two grades: (MNA 13−3) cunial A. Contains 2.3−3% Al 12−15% Ni; (MNA 6−1,5) Kunal B. Contains 1.2% To 2.8% Al and about 5.5 to 6.5% Ni.
Percentage composition
| Alloy | Cunial And | Cunial B |
|---|---|---|
| Al | 2,3−3 | 1,2−2,8 |
| Ni+Co | 12−15 | 5.5 to 6.5 |
| Pb | 0,002 | 0,002 |
| Mn | 0,5 | 0,2 |
| Fe | 1 | 0,5 |
| Cu | DOS. | DOS. |
The basic qualities
Chemical properties of alloy cunial glare to chemical properties of Nickel silver (brand MN19). After heat treatment the alloy is hardened. Applies hardening 900−1000°C in water and aging at 500−600°C. At low temperature, the alloy retains not only the ductility but also strength. Cunial B at room temperature rupture strength in aged condition 638 MPa, and a transverse narrowing of 50%. When lowering the temperature to -180°C rupture strength = 700 MPa.
Production
The alloy is produced in the form of bars and strips of various sizes. This alloy in addition to the main elements 11 of the impurities (carbon, silicon, lead, arsenic, antimony, etc.). Alloys of copper and Nickel have the same crystal lattice and is almost the same size of atoms. In this regard, while melting the formed solid solution. Nickel adds ductility, strength and hardness. By increasing its percentage in the alloy increases also the corrosion resistance in the aquatic environment, but decreases the electrical conductivity. This composition is suitable when creating elements with high electrical resistance.
Application
The alloy is in the manufacture of parts and devices of special purpose, where the necessary high corrosion resistance and high strength, for example, in shipbuilding. It is also used in the manufacture of springs and elastic elements. And thanks to the high frost resistance, it is used in cryogenic engineering. Cunial, AND (MNA 13−3) popular in parts of high strength, cunial B (MNA 6−1,5) is in the electrical industrial instrumentation and responsible for making springs.
Supply
Supply certified products of kunias at the best prices. In the technical documentation shows the percentage composition and mechanical properties of products. We can easily buy in bulk any semi-finished products for large-scale production. Provide favorable conditions for retail customers. Our company has a high level of service and efficiency of service.
Buy at best price
All products from rare and non-ferrous metals, implemented by the company «Electrocentury-steel» comply with GOST and international quality standards. Supply flanges standard and custom sizes in the shortest possible time from warehouses located on the territory of Russia and Ukraine. High quality, affordable prices and a wide range of products define the face of our company. Becoming our regular customer, You will be able to rely on the system of discount discount. Cooperation with us will help You to implement any engineering plans. Waiting for Your orders on the website evek.org.
