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EZ33A Magnesium vs. N08904 Stainless Steel

EZ33A magnesium belongs to the magnesium alloys classification, while N08904 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (5, 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 N08904 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 55
170
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.6
38
Fatigue Strength, MPa 70
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
79
Shear Strength, MPa 140
370
Tensile Strength: Ultimate (UTS), MPa 150
540
Tensile Strength: Yield (Proof), MPa 100
240

Thermal Properties

Latent Heat of Fusion, J/g 330
300
Maximum Temperature: Mechanical, °C 250
1100
Melting Completion (Liquidus), °C 640
1440
Melting Onset (Solidus), °C 570
1390
Specific Heat Capacity, J/kg-K 970
470
Thermal Conductivity, W/m-K 100
12
Thermal Expansion, µm/m-K 27
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 24
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 110
1.9

Otherwise Unclassified Properties

Base Metal Price, % relative 25
32
Density, g/cm3 1.9
8.1
Embodied Carbon, kg CO2/kg material 25
5.8
Embodied Energy, MJ/kg 190
79
Embodied Water, L/kg 930
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 3.6
170
Resilience: Unit (Modulus of Resilience), kJ/m3 120
150
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
24
Strength to Weight: Axial, points 22
19
Strength to Weight: Bending, points 33
18
Thermal Diffusivity, mm2/s 54
3.1
Thermal Shock Resistance, points 9.2
12

Alloy Composition

Carbon (C), % 0
0 to 0.020
Chromium (Cr), % 0
19 to 23
Copper (Cu), % 0 to 0.1
1.0 to 2.0
Iron (Fe), % 0
38.8 to 53
Magnesium (Mg), % 91.5 to 95
0
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 0
4.0 to 5.0
Nickel (Ni), % 0 to 0.010
23 to 28
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.035
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