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K94200 Alloy vs. EN AC-21100 Aluminum

K94200 alloy belongs to the iron alloys classification, while EN AC-21100 aluminum belongs to the aluminum alloys. There are 21 material properties with values for both materials. Properties with values for just one material (11, 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 EN AC-21100 aluminum.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 140
71
Elongation at Break, % 5.0 to 32
6.2 to 7.3
Poisson's Ratio 0.34
0.33
Shear Modulus, GPa 54
27
Tensile Strength: Ultimate (UTS), MPa 500 to 710
340 to 350
Tensile Strength: Yield (Proof), MPa 270 to 650
210 to 240

Thermal Properties

Melting Onset (Solidus), °C 1440
550
Specific Heat Capacity, J/kg-K 500
880
Thermal Conductivity, W/m-K 15
130
Thermal Expansion, µm/m-K 5.0
23

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
34
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
100

Otherwise Unclassified Properties

Density, g/cm3 8.2
3.0

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 35 to 130
19 to 21
Resilience: Unit (Modulus of Resilience), kJ/m3 250 to 1460
300 to 400
Stiffness to Weight: Axial, points 9.8
13
Stiffness to Weight: Bending, points 21
46
Strength to Weight: Axial, points 17 to 24
31 to 33
Strength to Weight: Bending, points 17 to 22
36 to 37
Thermal Diffusivity, mm2/s 3.7
48
Thermal Shock Resistance, points 49 to 70
15