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ZK40A Magnesium vs. EN 1.8507 Steel

ZK40A magnesium belongs to the magnesium alloys classification, while EN 1.8507 steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 1.8507 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
190
Elongation at Break, % 4.2
16
Fatigue Strength, MPa 190
440
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 17
72
Shear Strength, MPa 160
550
Tensile Strength: Ultimate (UTS), MPa 280
900
Tensile Strength: Yield (Proof), MPa 260
670

Thermal Properties

Latent Heat of Fusion, J/g 340
250
Maximum Temperature: Mechanical, °C 120
430
Melting Completion (Liquidus), °C 600
1450
Melting Onset (Solidus), °C 540
1410
Specific Heat Capacity, J/kg-K 970
480
Thermal Conductivity, W/m-K 110
41
Thermal Expansion, µm/m-K 26
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
7.4
Electrical Conductivity: Equal Weight (Specific), % IACS 130
8.5

Otherwise Unclassified Properties

Base Metal Price, % relative 13
2.5
Density, g/cm3 1.8
7.8
Embodied Carbon, kg CO2/kg material 24
1.6
Embodied Energy, MJ/kg 160
21
Embodied Water, L/kg 950
63

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
130
Resilience: Unit (Modulus of Resilience), kJ/m3 740
1210
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 65
24
Strength to Weight: Axial, points 43
32
Strength to Weight: Bending, points 53
27
Thermal Diffusivity, mm2/s 62
11
Thermal Shock Resistance, points 17
26

Alloy Composition


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Aluminum (Al), % 0
0.8 to 1.2
Carbon (C), % 0
0.3 to 0.37
Chromium (Cr), % 0
1.0 to 1.3
Iron (Fe), % 0
96.1 to 97.7
Magnesium (Mg), % 94.2 to 96.1
0
Manganese (Mn), % 0
0.4 to 0.7
Molybdenum (Mo), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0
0 to 0.4
Sulfur (S), % 0
0 to 0.035
Zinc (Zn), % 3.5 to 4.5
0
Zirconium (Zr), % 0.45 to 1.0
0
Residuals, % 0 to 0.3
0