Patent ID: 8684594

Claim:
A magnetically insensitive, highly hard, constant-modulus alloy, containing, by atomic weight ratio, 20-40% Co and 7 to 22% Ni, with the total of Co and Ni being 42.0 to 49.5%, 5 to 13% Cr and 1 to 6% Mo, with the total of Cr and Mo being 13.5 to 16.0%, and with the balance being essentially Fe (with the proviso that Fe is present 37% or more) and inevitable impurities, characterized in that the alloy has a {110}<111> texture, as well as a saturation magnetic flux density of 2500 to 3500 G, a temperature coefficient of Young's modulus of (âˆ’5Ëœ+5)â€”10 âˆ’5 degrees C. âˆ’1 of as measured at 0 to 40 degrees C., and a Vickers hardness of 350 to 550.