Sheet 29NK - alloy
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 |
Technical characteristics
High quality, precision alloy; with corrosion resistance in a range of acidic and aggressive environments. Melting point 1450 °C. The coefficient of thermal expansion is the same as that of glass. TKHR*1000000 in the temperature range from -70 to +420 ºC does not exceed 4.5-6.5 [1/ºC]. It is used for parts of radioelectronic equipment, hermetic connection with glass C49-1, C52-1, C48-1, C47-1;
Production
Smelted in electric furnaces, the required alloying components are introduced into the composition during the melting process in the form of ferroalloys. Precise control over composition is required at all stages of production to ensure the required quality.
Percentage composition of| Fe | Ni | Co | C | Si | Mn | S | P | Cr | Ti | Al | Cu |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 51.14 - 54.5 | 28.5 - 29.5 | 17 - 18 | ≤0 0.03 | ≤0 0.3 | ≤00.4 | ≤0 0.015 | ≤00.015 | ≤00.1 | ≤00.1 | ≤0 0.2 | ≤0 0.2 |
Mechanical properties (t° 20°C)
| Range | GOST | s in | d5 | y | KCU |
|---|---|---|---|---|---|
| - | MPa | % | % | kJ/m2 | |
| Tape, | 14080-78 | 490-610 | 23 |
Physical properties (t° 20°C)
| E 10- 5 | l | specific gravity | C | R 10 9 |
|---|---|---|---|---|
| MPa | W/(m-grad) | g/cm3 | J/(kg-grad) | Ohm-m |
| 1.45 | 8,20 | 500 |
σc - tensile strength (ultimate tensile strength),
δ5 - relative elongation after rupture, %
Soldering
Easy solderable with tin-lead solder. The alloy is characterized by good adhesion to molten glass, a high-strength hermetic bond is achieved when connected to it.
Supplier
We offer to buy sheet 29NK from specialized warehouses of the supplier Evek GmbH with delivery in any city. Full compliance with GOST and international quality standards. Supplier Evek GmbH offers to buy sheet 29NK, price - optimal.
Buy, bargain price
We offer precision alloy 29NK, the price - due to the technological features of production without the inclusion of additional costs. On the website of the company displays information on the latest arrivals of products. You can order products with non-standard parameters. We have the best price-quality ratio for the entire range of products. In the precision alloys segment Evek GmbH is a profitable supplier.