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ZK40A Magnesium vs. EN 1.4313 Stainless Steel

ZK40A magnesium belongs to the magnesium alloys classification, while EN 1.4313 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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 1.4313 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 4.2
12 to 17
Fatigue Strength, MPa 190
340 to 510
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
76
Shear Strength, MPa 160
460 to 600
Tensile Strength: Ultimate (UTS), MPa 280
750 to 1000
Tensile Strength: Yield (Proof), MPa 260
580 to 910

Thermal Properties

Latent Heat of Fusion, J/g 340
280
Maximum Temperature: Mechanical, °C 120
780
Melting Completion (Liquidus), °C 600
1450
Melting Onset (Solidus), °C 540
1400
Specific Heat Capacity, J/kg-K 970
480
Thermal Conductivity, W/m-K 110
25
Thermal Expansion, µm/m-K 26
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 130
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
10
Density, g/cm3 1.8
7.8
Embodied Carbon, kg CO2/kg material 24
2.4
Embodied Energy, MJ/kg 160
34
Embodied Water, L/kg 950
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
110 to 150
Resilience: Unit (Modulus of Resilience), kJ/m3 740
870 to 2100
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 65
25
Strength to Weight: Axial, points 43
27 to 36
Strength to Weight: Bending, points 53
23 to 28
Thermal Diffusivity, mm2/s 62
6.7
Thermal Shock Resistance, points 17
27 to 36

Alloy Composition


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Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
12 to 14
Iron (Fe), % 0
78.5 to 84.2
Magnesium (Mg), % 94.2 to 96.1
0
Manganese (Mn), % 0
0 to 1.5
Molybdenum (Mo), % 0
0.3 to 0.7
Nickel (Ni), % 0
3.5 to 4.5
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.7
Sulfur (S), % 0
0 to 0.015
Zinc (Zn), % 3.5 to 4.5
0
Zirconium (Zr), % 0.45 to 1.0
0
Residuals, % 0 to 0.3
0