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EZ33A Magnesium vs. EN 1.3960 Stainless Steel

EZ33A magnesium belongs to the magnesium alloys classification, while EN 1.3960 stainless steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (7, 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 EZ33A magnesium and the bottom bar is EN 1.3960 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.6
34
Fatigue Strength, MPa 70
220
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
78
Tensile Strength: Ultimate (UTS), MPa 150
590
Tensile Strength: Yield (Proof), MPa 100
270

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 250
970
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 570
1400
Specific Heat Capacity, J/kg-K 970
470
Thermal Conductivity, W/m-K 100
15
Thermal Expansion, µm/m-K 27
12

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 25
21
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 25
4.1
Embodied Energy, MJ/kg 190
57
Embodied Water, L/kg 930
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.6
170
Resilience: Unit (Modulus of Resilience), kJ/m3 120
190
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
25
Strength to Weight: Axial, points 22
21
Strength to Weight: Bending, points 33
20
Thermal Diffusivity, mm2/s 54
3.9
Thermal Shock Resistance, points 9.2
17

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
16.5 to 18.5
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0
60.2 to 67.9
Magnesium (Mg), % 91.5 to 95
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
2.5 to 3.0
Nickel (Ni), % 0 to 0.010
13 to 15
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Unspecified Rare Earths, % 2.5 to 4.0
0
Zinc (Zn), % 2.0 to 3.1
0
Zirconium (Zr), % 0.5 to 1.0
0
Residuals, % 0 to 0.3
0