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Cryogenic technologies group
Material Properties: Nickel Steel (Fe-9.0 Ni) (UNS S21800)
 Data Available:
 Thermal Conductivity
 Specific Heat

 

 
Thermal Conductivity
Specific Heat
UNITS W/(m-K) J/(kg-K)
a -0.0712785 15503.108
b -3.48735 -37280.377
c 10.6547 26788.417
d -12.9153 7010.0877
e 8.89066 -22731.651
f -3.51482 15386.526
g 0.743643 -5175.7968
h -0.0657884 896.97274
i 0 -64.055866
data range
4-300 60-300
equation range
4-300 55-300
curve fit % error relative to data 2 1.5
Curve fit equation of the form:
log10 y = a+b(log10T) + c(log10T) 2 + d(log10T) 3 + e(log10T) 4 + f(log10T) 5 + g(log10T) 6 + h(log10T) 7 + i(log10T) 8


Solves as:
y = 10
a+b(log10T) + c(log10T) 2 + d(log10T) 3 + e(log10T) 4 + f(log10T) 5 + g(log10T) 6 + h(log10T) 7 + i(log10T) 8

Where: Coefficients a - i are summarized in the appropriate table and T is the temperature in K (x-axis), and y is the property to solve for.

Link to References

  Young's Modulus Linear expansion
.Units
GPa [(L-L293)/L293] x 10 5 unitless, eg. m/m
a
2.05335E2 -2.104E2
b
1.74835E-2 -5.699E-2
c
-3.65760E-4 5.072E-3
d
8.71545E-7 -1.381E-5
e
-7.78130E-10 1.897E-8
Tlow (K)
  6
f>
  -210.56
data range (K)
1-298 4-300
equation range (K)
1-298 4-265
curve fit % error relative to data
1 1.5
equation of the form:
y = a + bT + cT 2 + dT 3 + eT 4
   >T > Tlow
y = f 
   T < Tlow
solves as expected: Where: Coefficients a-e are summarized in the appropriate table and T is the temperature in K (x-axis), and y is the property to solve for.

link to references                                 Icon used as link to return to Material Properties Index page