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ZK40A Magnesium vs. EN 1.4526 Stainless Steel

ZK40A magnesium belongs to the magnesium alloys classification, while EN 1.4526 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 1.4526 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 4.2
25
Fatigue Strength, MPa 190
230
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77
Shear Strength, MPa 160
340
Tensile Strength: Ultimate (UTS), MPa 280
540
Tensile Strength: Yield (Proof), MPa 260
330

Thermal Properties

Latent Heat of Fusion, J/g 340
280
Maximum Temperature: Mechanical, °C 120
880
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
30
Thermal Expansion, µm/m-K 26
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 13
13
Density, g/cm3 1.8
7.7
Embodied Carbon, kg CO2/kg material 24
2.9
Embodied Energy, MJ/kg 160
41
Embodied Water, L/kg 950
120

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 12
120
Resilience: Unit (Modulus of Resilience), kJ/m3 740
280
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 65
25
Strength to Weight: Axial, points 43
19
Strength to Weight: Bending, points 53
19
Thermal Diffusivity, mm2/s 62
8.1
Thermal Shock Resistance, points 17
19

Alloy Composition


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Carbon (C), % 0
0 to 0.080
Chromium (Cr), % 0
16 to 18
Iron (Fe), % 0
77.4 to 83.1
Magnesium (Mg), % 94.2 to 96.1
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
0.8 to 1.4
Niobium (Nb), % 0
0.1 to 1.0
Nitrogen (N), % 0
0 to 0.040
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
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