52 Alloy


Application & Characteristics
Glass-to-metal seals.

Chemical Composition (%)
Ni 51.0; Fe 49.0

Physical Properties
Melting Range (°F)	2600
Density (lbs/in³) 68F	0.298
Thermal Expansion (in/in °Fx10 to the power of -6)	5.4 (70 – 1050F)
Electrical Resistivity (ohms/cir mil/ft.) 68F	281

Mechanical Properties – Temper = A
Tensile Strength (psi x 10³)	80
Yield Strength (psi x 10³)	35
Elongation ( % )	40
Hardness	B75(Rockwell)

Mechanical Properties – Temper = H/2
Tensile Strength (psi x 10³)	95
Yield Strength (psi x 10³)	55
Elongation ( % )	20
Hardness	B90(Rockwell)

Mechanical Properties – Temper = H
Tensile Strength (psi x 10³)	115
Yield Strength (psi x 10³)	80
Elongation ( % )	5
Hardness	C20(Rockwell)