Ferrous Alloys

42 Alloy

Application & Characteristics 
Glass-to-metal sealing.
Chemical Composition (%)
Ni, Co & Cu 40.25-41.75, ; C 0.05 max.; Mn 1.00 max; Si 0.10-0.40; Balance Fe
Physical Properties
Melting Range (°F)2606
Density (lbs/in³) 68F0.293
Thermal Expansion (in/in °Fx10 to the power of -6)3.8 (0 – 200F)
Electrical Resistivity (ohms/cir mil/ft.) 68F421
Mechanical Properties – Temper = A
Tensile Strength (psi x 10³)80
Yield Strength (psi x 10³)35
Elongation ( % )35
HardnessB90(Rockwell)
Mechanical Properties – Temper = H/2
Tensile Strength (psi x 10³)100
Yield Strength (psi x 10³)55
Elongation ( % )20
HardnessB90(Rockwell)
Mechanical Properties – Temper = H
Tensile Strength (psi x 10³)130
Yield Strength (psi x 10³)85
Elongation ( % )6
HardnessC25(Rockwell)

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