Elgiloy®
W.Nr 2.4711
Applications
Springs, seals, semiconductor components, orthodontics, medical devices, surgical implants, satellite communications equipment, and weapons systems.
Description
Elgiloy® is a non-magnetic Cobalt-Chromium-Nickel-Molybdenum alloy having a unique combination of very high strength while maintaining excellent formability, excellent corrosion resistance, and high fatigue strength. Additional strength increases of up to 25% can be achieved through aging cold reduced material. Elgiloy® is highly resistant to sulfide stress corrosion cracking, and as a result is the alloy of choice in the most demanding sour well environments. In seawater, Elgiloy® is virtually immune to crevice and stress corrosion and pitting even at the highest strength levels. Elgiloy® performs across a wide range of temperatures: from cryogenic up to 850°F (454°C).
Industries Supplied
Oil & Gas Extraction, Medical, Dental, Aerospace, Defense, Space Exploration and Watch making.
Nominal Composition
C: 0.15 max
Mn: 1.5 - 2.5
Si: 1.20 max
P: 0.015 max
S: 0.015 max
Cr: 19.0 - 21.0
Ni: 14.0 - 16.0
Co: 39.0 - 41.0
Mo: 6.0 - 8.0
Be: 0.10 max
Fe: Balance