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K94200 Alloy vs. 6110A Aluminum

K94200 alloy belongs to the iron alloys classification, while 6110A aluminum belongs to the aluminum alloys. There are 22 material properties with values for both materials. Properties with values for just one material (9, 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 6110A aluminum.

UNS K94200 (FeNi42, 1.3917) Low Expansion Alloy6110A (AlMg0.9Si0.9MnCu) Aluminum
Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
70
Elongation at Break, % 5.0 to 32
11 to 18
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 54
26
Shear Strength, MPa 330 to 410
220 to 280
Tensile Strength: Ultimate (UTS), MPa 500 to 710
360 to 470
Tensile Strength: Yield (Proof), MPa 270 to 650
250 to 430

Thermal Properties

Melting Onset (Solidus), °C 1440
600
Specific Heat Capacity, J/kg-K 500
900
Thermal Conductivity, W/m-K 15
160
Thermal Expansion, µm/m-K 5.0
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
42
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
140

Otherwise Unclassified Properties

Density, g/cm3 8.2
2.8

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35 to 130
47 to 58
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 1460
450 to 1300
Stiffness to Weight: Axial, points 9.8
14
Stiffness to Weight: Bending, points 21
50
Strength to Weight: Axial, points 17 to 24
36 to 47
Strength to Weight: Bending, points 17 to 22
41 to 48
Thermal Diffusivity, mm2/s 3.7
65
Thermal Shock Resistance, points 49 to 70
16 to 21