Elgiloy Springs, Phynox, ASTM F1058, AMS 5833/5834 Springs

Elgiloy Springs

Elgiloy® is a cobalt alloy wire. It is a non-magnetic Cobalt-Chromium-Nickel-Molybdenum alloy having a unique combination of very high strength, excellent corrosion resistance, and high fatigue strength. Elgiloy® wire 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 and can operate at cryogenic temperatures up to 850°F (454°C).
Elgiloy Springs possess high strength, high ductility, and good mechanical properties. Elgiloy Springs have an applications range from freshwater to industrial and marine atmospheres, and mild chemical and oxidizing environments. Elgiloy shows a very good performance in high-temperature environments

Elgiloy Spring Types

Elgiloy Extension Springs Elgiloy Wires Elgiloy Torsion Springs Elgiloy Compression Springs

Elgiloy Spring Properties

Specification Elgiloy
Nominal Chemistry Nickel(Ni) 15.50-%
Cobalt(Co) 40.00-%
Chromium(Cr) 20.00-%
Molybdenum(Mo) 7.00-%
Minimum Tensile Strength psi x 103 220-350
E - Modulus of Elasticity psi x 106 29.5
Design Stress % Minimum Tensile 45
G - Modulus in Torsion psi x 106 11.5
Maximum Operating Temperature °F 600
Rockwell Hardness C38-55
Density lb/in3 0.300
Shear Modulus c GPa 11600 80.0
Equivalent Specifications Phynox
ASTM F1058
UNS R30003
AMS 5833