Wire, circle, rod Kovar® - 1.3981
International Equivalent
| Mark | Analogue | W. Nr. | Aisi Uns | En | Order |
|---|---|---|---|---|---|
| 29NK | 1.3981 | K94610 | NiCo29-18 | Delivery from the stock, in stock | |
| 29NK-t | 1.3981 | K94610 | NiCo29-18 | Delivery from the stock, in stock | |
| 29NK-m | 1.3981 | K94610 | NiCo29-18 | Delivery from the stock, in stock |
Percentage composition of 29NK, "Kovar", GOST 10994-74
| Fe | C | Si | Mn | Ni | S | P | Cr | Co | Ti | Al | Cu |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 51.14 - 54.5 | ≤0.03 | ≤0.3 | ≤0.4 | 28.5 - 29.5 | ≤0.015 | ≤0.015 | ≤0.1 | 17 - 18 | ≤0.1 | ≤0.2 | ≤0.2 |
Technical Characteristics
Alloy alloyed with nickel and cobalt has a minimum LCTR. The alloy has twice the electrical resistance compared to invar. The use of wire, rounds, bars made of this material contributes to the creation of the strongest hermetic connections with glass.
Relevance
Production of vacuum junctions of radio-electronic components with glass C49-1, C52-1, C48-1, C47-1; TKLR*1000000 in the temperature range from -70 to +420 ºC not more than 4.5-6.5 [1/ºC]Modern radio electronics technology could not work without the use of 29NK alloy. The grids of radio tubes, microwaves, cathode production. Alloy is subject to corrosion in a humid environment, so there is a need for protective coating. When capacitors are manufactured, it is coated with a metal that has good conductivity, usually silver.
Delivery, price
All products offered, certified. The technical documentation includes data on the chemical composition and specifies the limiting percentage of impurities. The supplier "Evek GmbH" supplies Kovar wire, rounds and bars - 1.39812 in standard and non-standard sizes at a reasonable price from their stocks. The price of Kovar wire, rounds and bars 1.39812 match the high quality of the product.
Buy
You can buy sheet, strip from the supplier Evek GmbH at an affordable price. The price of sheet, alloy tape is formed on the basis of European standards of production. Buy wire, round, bar 29NK - 1.39812 at an affordable price you can wholesale or retail. Regular customers can take advantage of the discount system from the company Evek GmbH.