Kunial - CuNiAl wire, round, sheet, strip
|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|
Kunial — an alloy based on copper with aluminum, Al (1 to 4%) and Ni nickel (4 to 20%). This alloy is not inferior to many structural alloys for strength. It also features a high corrosion resistance in seawater. Kunial comes in two grades: (MNA 13−3) kunial A. Contains 2,3−3% Al and 12−15% Ni; (6−1,5 MNA) kunial B. Contains 1,2−2,8% Al and 5,5−6,5% Ni.
The percentage of
|Alloy||Al||Ni + Co||Pb||Mn||Fe||Cu|
The chemical properties of the alloy kunial glare to the chemical properties of nickel silver (grade MN19). After heat treatment, the alloy is hardened. Suitable quenching 900−1000 ° C in water and aging at 500−600 ° C. At low temperature, the alloy retains not only plasticity but also durability. In kunial B at room temperature tensile strength in the aged condition 638 MPa and 50% necking. By lowering the temperature to -180 ° C tensile strength = 700 MPa.
Alloy produced in the form of rods and bars of various sizes. In addition to this alloy core elements 11 have the impurities (carbon, silicon, lead, arsenic, antimony, etc.). Alloys of copper and nickel, have the same crystal lattice of the same dimensions and practically atoms. In this connection, while a solid solution alloying. Nickel gives flexibility, strength and hardness. When increasing its percentage in the alloy and also increases the corrosion resistance in aqueous environments, but the electrical conductivity decreases. Such a composition is suitable when creating elements with high electrical resistance.
The alloy used in the manufacture of parts and devices for special purposes, where high corrosion resistance is necessary, and high strength, such as 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 cryogenics. Kunial, A (MNA 13−3) claimed the details of high strength, kunial B (6−1,5 MNA) — in the electrotechnical industry and instrumentation for the manufacture of springs responsible.
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