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K94200 Alloy vs. 5056 Aluminum

K94200 alloy belongs to the iron alloys classification, while 5056 aluminum belongs to the aluminum alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is K94200 alloy and the bottom bar is 5056 aluminum.

UNS K94200 (FeNi42, 1.3917) Low Expansion Alloy5056 (A95056) Aluminum
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
67
Elongation at Break, % 5.0 to 32
4.9 to 31
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 54
25
Shear Strength, MPa 330 to 410
170 to 240
Tensile Strength: Ultimate (UTS), MPa 500 to 710
290 to 460
Tensile Strength: Yield (Proof), MPa 270 to 650
150 to 410

Thermal Properties

Melting Onset (Solidus), °C 1440
570
Specific Heat Capacity, J/kg-K 500
910
Thermal Conductivity, W/m-K 15
130
Thermal Expansion, µm/m-K 5.0
24

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
29
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
99

Otherwise Unclassified Properties

Density, g/cm3 8.2
2.7

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35 to 130
12 to 140
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 1460
170 to 1220
Stiffness to Weight: Axial, points 9.8
14
Stiffness to Weight: Bending, points 21
51
Strength to Weight: Axial, points 17 to 24
30 to 48
Strength to Weight: Bending, points 17 to 22
36 to 50
Thermal Diffusivity, mm2/s 3.7
53
Thermal Shock Resistance, points 49 to 70
13 to 20

Comparable Variants

Annealed Condition