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ZK40A Magnesium vs. EN 1.3961 Alloy

ZK40A magnesium belongs to the magnesium alloys classification, while EN 1.3961 alloy belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (6, 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 ZK40A magnesium and the bottom bar is EN 1.3961 alloy.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 4.2
31
Poisson's Ratio 0.29
0.3
Shear Modulus, GPa 17
72
Shear Strength, MPa 160
300
Tensile Strength: Ultimate (UTS), MPa 280
450
Tensile Strength: Yield (Proof), MPa 260
310

Thermal Properties

Latent Heat of Fusion, J/g 340
270
Melting Completion (Liquidus), °C 600
1430
Melting Onset (Solidus), °C 540
1390
Specific Heat Capacity, J/kg-K 970
460
Thermal Expansion, µm/m-K 26
1.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
25
Density, g/cm3 1.8
8.2
Embodied Carbon, kg CO2/kg material 24
4.8
Embodied Energy, MJ/kg 160
66
Embodied Water, L/kg 950
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
130
Resilience: Unit (Modulus of Resilience), kJ/m3 740
250
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 65
23
Strength to Weight: Axial, points 43
15
Strength to Weight: Bending, points 53
16
Thermal Shock Resistance, points 17
130

Alloy Composition


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Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
0 to 0.25
Iron (Fe), % 0
60.7 to 65
Magnesium (Mg), % 94.2 to 96.1
0
Manganese (Mn), % 0
0 to 0.5
Molybdenum (Mo), % 0
0 to 1.0
Nickel (Ni), % 0
35 to 37
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.020
Zinc (Zn), % 3.5 to 4.5
0
Zirconium (Zr), % 0.45 to 1.0
0
Residuals, % 0 to 0.3
0