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EN 1.4482 Stainless Steel vs. EZ33A Magnesium

EN 1.4482 stainless steel belongs to the iron alloys classification, while EZ33A magnesium belongs to the magnesium alloys. There are 30 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 EN 1.4482 stainless steel and the bottom bar is EZ33A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
44
Elongation at Break, % 34
2.6
Fatigue Strength, MPa 420 to 450
70
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 78
17
Shear Strength, MPa 510 to 530
140
Tensile Strength: Ultimate (UTS), MPa 770 to 800
150
Tensile Strength: Yield (Proof), MPa 530 to 570
100

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 980
250
Melting Completion (Liquidus), °C 1420
640
Melting Onset (Solidus), °C 1370
570
Specific Heat Capacity, J/kg-K 480
970
Thermal Conductivity, W/m-K 15
100
Thermal Expansion, µm/m-K 13
27

Electrical Properties

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

Otherwise Unclassified Properties

Base Metal Price, % relative 12
25
Density, g/cm3 7.7
1.9
Embodied Carbon, kg CO2/kg material 2.7
25
Embodied Energy, MJ/kg 38
190
Embodied Water, L/kg 150
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 230 to 250
3.6
Resilience: Unit (Modulus of Resilience), kJ/m3 690 to 820
120
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 25
61
Strength to Weight: Axial, points 28 to 29
22
Strength to Weight: Bending, points 24 to 25
33
Thermal Diffusivity, mm2/s 4.0
54
Thermal Shock Resistance, points 21 to 22
9.2

Alloy Composition

Carbon (C), % 0 to 0.030
0
Chromium (Cr), % 19.5 to 21.5
0
Copper (Cu), % 0 to 1.0
0 to 0.1
Iron (Fe), % 66.1 to 74.9
0
Magnesium (Mg), % 0
91.5 to 95
Manganese (Mn), % 4.0 to 6.0
0
Molybdenum (Mo), % 0.1 to 0.6
0
Nickel (Ni), % 1.5 to 3.5
0 to 0.010
Nitrogen (N), % 0.050 to 0.2
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0
2.0 to 3.1
Zirconium (Zr), % 0
0.5 to 1.0
Residuals, % 0
0 to 0.3