Wire, rod, bar, Kovar, Nilo
Equivalent
Grade | analogue | W. Nr. | Aisi Uns | En | Order |
---|---|---|---|---|---|
29NK | 1.3981 | K94610 | NiCo29-18 | Buy from stock, view availability | |
29NK-t | 1.3981 | K94610 | NiCo29-18 | Buy from stock, view availability | |
29NK-m | 1.3981 | K94610 | NiCo29-18 | Buy from stock, view availability |
Relevance
A wire of grades Kovar, Nilo is used in different industries and electrotechnics. Modern television technology and radioelectronics can not be imagined without using iron-nickel materials. Grids for radio-valve, SHF devices, cathodes and high-ohmic wires of thermal compensation for thermocouples are made of this material. It is indispensable in electroforming at a manufacturing electrodes. It is used in electric-spark machines. With a help of a current, there realizes a controlled matter destruction. In electrochemistry, it is called a catalysis. Kovar is a very convenient source of a pure nickel for such an operation, because in its composition there is a nickel of a very high purity — 99,5%. The rest part constitutes a tithe magnesium, silicon, arsenic, carbon, stannum, phosphorus. Due to Kovar alloy’s propensity to corrosion, there is needed a protective nickel spattering. Under such conditions, kovar becomes a material for obtaining nickel, which applies later on a detail in vacuum conditions. Unfailing customers of such productions are the Institutes of Physics and research laboratories. A manufacture of computer technology and household items can not go without nickel alloys. It makes possible to avoid a forming of electric couple with the other nickel details
Dimension
A wire is used in such conditions:
1) hammer-hardened — for increasing a reliance under cold pressure;
2) soft (can also be called an annealed wire) -this wire can be manufactured out of siliceous nickel or out of alloy of nickel and mangan. Alloy of siliceous type is used in electronics; nickel-mangan alloy is used in aerial candles, mercury rectifiers, internal combustion engines.
Quality
Kovar wire is used according to GOST 2179−75. It must meet the most severe requirements. Its cover must be clean and must not have any cracks. An evenness or a slope from a required diameter must not exceed a permissible GOST limit. Generally, the thinnest filament Kovar, Nilo is made to order, with a diameter of few microns. To achieve such sizes, it is necessary to have close control equipment. Nickel is a consistent and highly malleable metal. Due to these features, it is capable of rolling them into thinnest products.
Percentage composition GOST 10994−74
P | S | C | Cr | Ti | Al | Cu | Si | Mn | Ni | Co | Fe |
≤0.015 | ≤0.015 | ≤0,03 | ≤0,1 | ≤0,1 | ≤0,2 | ≤0,2 | ≤0,3 | ≤0,4 | 29 | 17−18 | 52−54 |
Wire, rod, bar Kovar, Nilo are certificated. A quality is guaranteed by rigorous technology compliance of manufacture. Our managers are always ready to lend a knowledgeable assistance. A large assortment will not leave you without a choice. Connect us in a convenient way to you. Phone numbers, e-mail addresses of the closest company’s offices are located in section «Contacts». Order a service «Call-back» and our manager will help you to choose products that will fit individual requirements.
Application
Used in manufacture of various components of radio-electronic devices. Such a magnetic precision alloy has a low index of heat expansion (at a range of 20 — 400°C) and a high heat resistance (19V/m°С,). It forms a very consistent, hermetic joint, positioning it as an indispensable material in manufacturing electro-vacuum devices. Such an alloy (containing ferrum in its basis) corrodes in conditions of a high humidity. That is why it requires a special protective cover. Automatic arc welding is done with a help of welding wire of grade 04H20N10G2B that consists of anti-corrosive steel. It is often used at a high humidity for welding metallic structures in nuclear and power engineering industries.
Physical characteristics of alloy
Degree | 1/Degree | kg/m3 | J/(kg/deg) | V/(m/deg) | MPa | Ohm-m |
20 | 10.7 | 8.2 | - | - | 1.45 | 200 |
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