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ZK61A Magnesium vs. Type 2 Magnetic Alloy

ZK61A magnesium belongs to the magnesium alloys classification, while Type 2 magnetic alloy belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, 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 ZK61A magnesium and the bottom bar is Type 2 magnetic alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 46
190
Elongation at Break, % 5.8 to 7.1
2.0 to 38
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 18
72
Tensile Strength: Ultimate (UTS), MPa 290 to 310
510 to 910
Tensile Strength: Yield (Proof), MPa 180 to 200
260 to 870

Thermal Properties

Latent Heat of Fusion, J/g 330
270
Melting Completion (Liquidus), °C 640
1420
Melting Onset (Solidus), °C 530
1370
Specific Heat Capacity, J/kg-K 960
460
Thermal Expansion, µm/m-K 27
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 29
3.9
Electrical Conductivity: Equal Weight (Specific), % IACS 130
4.2

Otherwise Unclassified Properties

Base Metal Price, % relative 13
33
Density, g/cm3 1.9
8.4
Embodied Carbon, kg CO2/kg material 23
5.9
Embodied Energy, MJ/kg 160
81
Embodied Water, L/kg 940
140

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 15 to 19
18 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 370 to 420
170 to 2010
Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 62
23
Strength to Weight: Axial, points 42 to 45
17 to 30
Strength to Weight: Bending, points 50 to 53
17 to 25
Thermal Shock Resistance, points 17 to 18
16 to 29

Alloy Composition

Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
0 to 0.3
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0 to 0.1
0 to 0.3
Iron (Fe), % 0
48.2 to 53
Magnesium (Mg), % 92.1 to 93.9
0
Manganese (Mn), % 0
0 to 0.8
Molybdenum (Mo), % 0
0 to 0.3
Nickel (Ni), % 0 to 0.010
47 to 49
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Zinc (Zn), % 5.5 to 6.5
0
Zirconium (Zr), % 0.6 to 1.0
0
Residuals, % 0 to 0.3
0