NILO® Alloy K

2.4650 / UNS N07263

A nickel-iron-cobalt controlled-expansion alloy containing 29% nickel. Its coefficient of expansion, which decreases with rising temperature to the inflection point, matches the expansion rate of borosilicate glasses and alumina ceramics. Used for glass-to-metal seals in applications requiring high reliability or resistance to thermal shock. Examples are high-power transmitting valves, transistor leads and headers, integrated-circuit lead frames, and photography flash bulbs.

Contact us if you have any questions.

Contact to BIBUS METALS Switzerland

Stock program

  • 4.75 mm

Details at a glance

Chemical composition

Fe¹
53.00 %
Ni¹
29.00 %
Co¹
17.00 %
Mn
max. 0.50 %
Cr
max. 0.20 %
Cu
max. 0.20 %
Mo
max. 0.20 %
Si
max. 0.20 %
Al
max. 0.10 %
Mg
max. 0.10 %
Ti
max. 0.10 %
Zr
max. 0.10 %
C
max. 0.04 %
¹ Nominal value; adjusted to meet expansion requirements

Density

g/cm³
8.16
lb/in³
0.295

Recommended Welding Products

Electrode
Nickel 141
Electrode
INCO WELD A
Electrode
INCO WELD B
Filler Metal
Nickel 61
Filler Metal
INCONEL 82

® trademark of the Special Metals Corporation group of companies

.

Downloads

Downloads

Data sheet Nickel Alloy KData sheet Nickel Alloy K

Contact us

Carmine Mottura
Carmine MotturaSales Manager
German, English, French, Italian, Spanish
Gabriela Colosi
Gabriela ColosiSales Manager
German, English, French, Italian, Spanish
Leda Kancheva
Leda KanchevaSales Manager Export
German, English
Patrik Bryner
Patrik BrynerSales Manager
German, English