General introduction
NI-SPAN-C Alloy 902 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.
The matching material in China standard is constant elastic alloy 3J53.
Application
Used for precision springs, mechanical resonators, and other precision elastic components.
Chemical Composition of Ni-Span-C Alloy 902
|
Element
|
Content
|
|
Ni
|
41 - 43.5 %
|
|
Cr
|
4.9 - 5.75 %
|
|
Ti
|
2.2 - 2.75 %
|
|
Fe
|
48 %
|
Ni SPAN C 902, Nispan C, UNS N09902; BS 3127; SAE AMS 5210, 5221, 5223, 5225
