NiSpan C 902
*Trademark Huntington Alloys
NiSpan C Alloy 902 is a nickel-chrome-iron alloy that is known for its outstanding thermoelastic characteristic coefficient (the rate of change of modulus of elasticity with change in temperature). Other alloys have negative temperature coefficient of modulus of elasticity along with positive properties when heated. Combinations of reduction percentage of cold work and heat treatment can produce a wire with almost constant modulus of elasticity for -50 F through +150 F.
Chemical requirements per AMS 5225
Elements
Ni+Co
Cr
Fe
Mn
Ti
Al
Comp. %
41.0-43.5.
4.90-5.75
Bal
0.80 max.
2.25-2.75
.0.30-0.80
Comp. %
.06 max.
1.0 max.
.04 max.
1.0.
Elements
C
Si
S
Co
Density/lbs/cu in.
Modulus of elasticity,psi
        Tension
        Torsion
Poisson Ratio
.293
 
24,000,000-29,000,000
9,000,000-10,000,000
.33
Tensile after 50% cold work  135,000-165,000 (Size dependent)
The information and data presented herein are typical or average values and are not guarantee of maximum or minimum values. Applications specifically suggested for material described herein are made solely for the purpose of illustration to enable the reader to make his own evaluation and are not intended as warranties, either express or implied, of fitness for these or other purposes.
 
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