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Elgiloy Alloy - W.Nr. 2.4711

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.
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  • W.Nr. 2.4711

Elgiloy 

Elgiloy is a unique combination with extremely high strength, adhering to excellent formability, excellent corrosion resistance, and high fatigue strength in a non-magnetic cobalt chromium nickel molybdenum alloy. By aging cold rolling data, up to 25% of the rated strength can be added. Elgiloy is resistant to chemical stress corrosion and has high resistance to cracking, and as a result, it is selected for alloys in the most severe acids and environments. In seawater, Elgiloy alloy ® It is almost free from crevice corrosion and stress corrosion, and at a high strength level, even corrosion. Elgiloy operates over a wide temperature range: from low temperature to 850 ° F (at 454 ° C).


Nominal Composition:


CMnSiPBeCrNiCoMo
min
1.5


1914396
max0.152.51.20.0150.12116418


Physical Properties:


At 70℉At 20℃
Density0.30 lb/in³8.30lb/in³

Modulus of Elasticity (E)

27 - 29×10³ ksi cold reduced

30 - 32×10³ ksi cold reduced & aged

186 - 200 GPa cold reduced

206 - 221 GPa cold reduced & aged

Modulus of Rigidity (G)11×10³ ksi76 GPa
Coefficient of Expansion8.4 microinches/in.-℉ (70-600℉)15.2 μm/m-℃(20-300℃)
Electrical Resistivity39.21 μ ohm.in99.6 μ ohm.cm
Thermal Conductivity86.5 Btu-in./ft.²hr.-℉15.5 W/m-K


Elgiloy application:

Tension springs, seals, semiconductor components, orthodontics, medical devices, surgical implants, Weixing communication equipment, and weapon systems.


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