Comparison of Nickel Alloys - Spring Wire Properties
Nickel-based alloys
are especially useful
spring materials
to combat corrosion and to withstand both elevated and below-zero temperature application.
Their nonmagnetic characteristic is important for such devices as gyroscopes, chronoscopes,
and indicating instruments. These materials have high electrical resistance and
should not be used for conductors of electrical current.
Method of Manufacture Chief Uses Special Properties
Cold drawn and precipitation hardened after fabrication. Good corrosion resistance at elevated temperature.
Cold drawn. Good corrosion resistance at elevated temperature.
Cold drawn and precipitation hardened after fabrication. Good corrosion resistance at elevated temperature.
INCONEL X-750 is a non-magnetic nickel-chromium alloy similar to INCONEL 600 but made precipitation hardenable by additions of aluminum and titanium. The alloy has good resistance to corrosion along with high tensile and creep-rupture properties at temperatures to about 1100°F (700°C). It is widely used for high temperature conditions but is not as strong as Nimonic 90. INCONEL X-750 has excellent resistance to chloride ion stress-corrosion cracking. The alloy has similar corrosion resistance to INCONEL 600 in many media. This material is not suited for extension springs requiring initial tension.
