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ZK51A Magnesium vs. Type 3 Magnetic Alloy

ZK51A magnesium belongs to the magnesium alloys classification, while Type 3 magnetic alloy belongs to the nickel alloys. There are 28 material properties with values for both materials. Properties with values for just one material (4, 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 ZK51A magnesium and the bottom bar is Type 3 magnetic alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
180
Elongation at Break, % 4.7
43
Fatigue Strength, MPa 62
170
Poisson's Ratio 0.29
0.31
Shear Modulus, GPa 18
70
Shear Strength, MPa 160
380
Tensile Strength: Ultimate (UTS), MPa 240
550
Tensile Strength: Yield (Proof), MPa 150
210

Thermal Properties

Latent Heat of Fusion, J/g 340
290
Maximum Temperature: Mechanical, °C 120
910
Melting Completion (Liquidus), °C 640
1370
Melting Onset (Solidus), °C 550
1320
Specific Heat Capacity, J/kg-K 970
450
Thermal Expansion, µm/m-K 26
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 140
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 13
55
Density, g/cm3 1.8
8.7
Embodied Carbon, kg CO2/kg material 24
8.7
Embodied Energy, MJ/kg 160
120
Embodied Water, L/kg 940
220

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10
190
Resilience: Unit (Modulus of Resilience), kJ/m3 260
120
Stiffness to Weight: Axial, points 14
12
Stiffness to Weight: Bending, points 64
22
Strength to Weight: Axial, points 36
18
Strength to Weight: Bending, points 47
17
Thermal Shock Resistance, points 15
18

Alloy Composition

Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
2.0 to 3.0
Cobalt (Co), % 0
0 to 0.5
Copper (Cu), % 0 to 0.1
4.0 to 6.0
Iron (Fe), % 0
9.9 to 19
Magnesium (Mg), % 93.1 to 95.9
0
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.010
75 to 78
Phosphorus (P), % 0
0 to 0.010
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.020
Zinc (Zn), % 3.6 to 5.5
0
Zirconium (Zr), % 0.5 to 1.0
0
Residuals, % 0 to 0.3
0