NILO® Alloy K

1.3981

UNS K94610

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.

Stock program

Wire

Coil

        Ø

4.75 mm              
               

Bars

Standard lengths of 2000 mm up to 6000 mm. Cut to size on request (tolerance +2/-0 mm).

        Ø

4.75 mm              
9.52 mm              
12.70 mm              
15.88 mm              
19.05 mm              
25.40 mm              
31.75 mm              
34.93 mm              
38.10 mm              
44.45 mm              
50.80 mm              
57.15 mm              
63.50 mm              
76.10 mm              
88.90 mm              

Sheets / Plates

Dimensions: widths 1000/1220/1500 mm, lengths 2000/2500/3000 mm.

Thickness:

0.10 mm              
0.15 mm              
0.20 mm              
0.30 mm              
0.38 mm              
0.50 mm              
0.63 mm              
0.76 mm              
0.90 mm              
1.00 mm              
1.27 mm              
1.50 mm              
1.83 mm              
2.03 mm              
2.30 mm              
2.54 mm              
3.18 mm              
6.35 mm              
7.93 mm              
9.52 mm              
12.70 mm              
15.88 mm              
19.05 mm              
25.40 mm              
38.10 mm              
               
Downloads

Downloads with Login

Datasheet
Nilo_K.pdf
icon_pdf 197 KB DE,EN
Limiting
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
  INCO WELD A
  INCO WELD B
Filler Metal Nickel 61
  INCONEL 82