EL-3 elastic alloy wire, strip
General introduction
EL-3 is a heat treatable alloy designed primarily to obtain a constant modulus of elasticity in a useful temperature range of -50°F to 150°F . The addition of titanium to the nickel-chromium-iron alloy makes it hardenable by precipitation. It has outstanding properties of elastic modulus control and high strength, combined with unusually low drift and mechanical hysteresis. Standard product forms are round, strip, tube, pipe, and wire.
Application
Used for precision springs, mechanical resonators, and other precision elastic components.
Chemical Composition
|
Element
|
Content
|
|
Ni
|
41 - 43.5 %
|
|
Cr
|
4.9 - 5.75 %
|
|
Ti
|
2.2 - 2.75 %
|
|
Fe
|
48 %
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EL-3, Ni SPAN C 902, Nispan C, UNS N09902; BS 3127; SAE AMS 5210, 5221, 5223, 5225
