Elgiloy® UNS R30003 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 Physical Properties Density: 0.30 lb/in3, (8.30 g/cm3) Modulus of Elasticity (E): At 70°F (20°C): 27.0 x 103 ksi (190 GPa) Modulus of Rigidity (G): At 70°F (20°C): 11.0 x 103 ksi (76 GPa) Coefficient of Expansion: 8.4 μin/in.-°F (70°F to 600°F) 15.2 μm/m-°C (20°C to 300°C) Electrical Resistivity: 39.21 μΩ.in, (99.6 μΩ.cm) Thermal Conductivity: 86.5 Btu-in/ft2hr-°F, (12.5 W/m-K) Applicable Specifications Strip and Foil: AMS 5876, ASTM F1058, NACE MR 0175 & MR 0103, ISO 5832-7 Typical Mechanical Properties – Spring Applications Annealed Heat Treatment: Per AMS 5876 Tensile Strength: 100 ksi min (690 MPa) Suggested Operating Conditions: -300°F to 850°F (-184°C to 454°C) Spring Temper Heat Treatment: No Heat Treatment Tensile Strength: Up to 310 ksi (2100 MPa) Suggested Operating Conditions: -300°F to 850°F (-184°C to 454°C) Spring Temper + Aged Heat Treatment: After cold rolling. Age: Per AMS 5876, Nace MR 0175 Tensile Strength: Up to 380 ksi (2600 MPa) Suggested Operating Conditions: -300°F to 850°F (-184°C to 454°C)