Nilo® 52

Nilo 52 was designed for use with a variety of soft glasses. It is known for its almost constant coefficient of thermal expansion up to approx. 565oC (1050oF).

Nilo® 52 is also known as Invar 52, Pernifer 50, and Glass Sealing 52.

ASTM F30
W.NR 2.4478
UNS N14052
AWS 093
Designed for use with a variety of soft glasses.
Almost constant coefficient of thermal expansion up to approx. 565°C (1050°F).
Various glass to metal sealing applications with soft glass and ceramics.
Specifications
ASTM F30
W.NR 2.4478
UNS N14052
AWS 093
Designed for use with a variety of soft glasses.
Almost constant coefficient of thermal expansion up to approx. 565°C (1050°F).
Various glass to metal sealing applications with soft glass and ceramics.

Chemical Composition

Element Min % Max %
Ni 50.50 nominal
Fe bal
Mn – 0.60
Si – 0.30
C – 0.05
Cr – 0.25
P – 0.025
S – 0.03
Al – 0.10

Density

8.3 g/cm³ | 0.300 lb/in³

Melting Point

1450°C | 2640°F

Coefficient of Expansion

500°C | 930°F

Modulus of Rigidity

17 W/m•°C | 118 btu•in/ft2•h°F

Modulus of Elasticity

10.3 µm/m °C (20 – 100°C) | 5.7 x 10-6 in/in °F (70 – 212°F)

Heat Treatment of Finished Parts

Type Temperature Time (Hr) Cooling
°C °F
Anneal 850 – 1000 1560 – 1830 0.5 Air or water

Properties

Condition Approx. tensile strength Approx. operating temperature
N/mm² ksi °C °F
Annealed 450 – 550 65 – 80 up to +450 up to +840
Hard Drawn 700 – 900 102 – 131 up to +450 up to +840
The above tensile strength ranges are typical. If you require different please ask.

*Trade name of Special Metals Group of Companies