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AZ63A Magnesium vs. K94200 Alloy

AZ63A magnesium belongs to the magnesium alloys classification, while K94200 alloy belongs to the iron 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 AZ63A magnesium and the bottom bar is K94200 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
140
Elongation at Break, % 2.2 to 8.0
5.0 to 32
Poisson's Ratio 0.29
0.34
Shear Modulus, GPa 18
54
Shear Strength, MPa 110 to 160
330 to 410
Tensile Strength: Ultimate (UTS), MPa 190 to 270
500 to 710
Tensile Strength: Yield (Proof), MPa 81 to 120
270 to 650

Thermal Properties

Melting Onset (Solidus), °C 450
1440
Specific Heat Capacity, J/kg-K 980
500
Thermal Conductivity, W/m-K 52 to 65
15
Thermal Expansion, µm/m-K 26
5.0

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 12 to 15
2.7
Electrical Conductivity: Equal Weight (Specific), % IACS 59 to 74
3.0

Otherwise Unclassified Properties

Density, g/cm3 1.8
8.2

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.7 to 16
35 to 130
Resilience: Unit (Modulus of Resilience), kJ/m3 71 to 160
250 to 1460
Stiffness to Weight: Axial, points 14
9.8
Stiffness to Weight: Bending, points 66
21
Strength to Weight: Axial, points 29 to 41
17 to 24
Strength to Weight: Bending, points 40 to 51
17 to 22
Thermal Diffusivity, mm2/s 29 to 37
3.7
Thermal Shock Resistance, points 11 to 16
49 to 70