UNS K94200 (FeNi42, 1.3917) Low Expansion Alloy
Other Steels
annealed
Property Overview
Density8.2g/cm³
Elastic Modulus140GPa
Tensile Strength500MPa
Yield Strength270MPa
Brinell Hardness130HB
Maximum Service TemperatureUnknown
Chemical Composition
Mechanical
Elastic (Young's, Tensile) Modulus
140 GPa
Elongation at Break
32 %
Poisson's Ratio
0.34
Reduction in Area
75 %
Shear Modulus
54 GPa
Shear Strength
330 MPa
Tensile Strength: Ultimate (UTS)
500 MPa
Tensile Strength: Yield (Proof)
270 MPa
Hardness
Brinell Hardness
130
Physical
Density
8.2 g/cm 3
Thermal
Curie Temperature
350 °C
Melting Onset (Solidus)
1440 °C
Specific Heat Capacity
500 J/kg-K
Thermal Conductivity
15 W/m-K
Thermal Diffusivity
3.7 mm 2 /s
Thermal Expansion
5.0 µm/m-K
Thermal Shock Resistance
49 points
Electrical
Electrical Conductivity: Equal Volume
2.7 % IACS
Electrical Conductivity: Equal Weight (Specific)
3.0 % IACS
Calculated
Resilience: Ultimate (Unit Rupture Work)
130 MJ/m 3
Resilience: Unit (Modulus of Resilience)
250 kJ/m 3
Stiffness to Weight: Axial
9.8 points
Stiffness to Weight: Bending
21 points
Strength to Weight: Axial
17 points
Strength to Weight: Bending
17 points
Registered Designations & Aliases
1.3917FeNi42K94200UNS K94200 (FeNi42, 1.3917) Low Expansion Alloy