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AISI 384 Stainless Steel vs. ZE41A Magnesium

AISI 384 stainless steel belongs to the iron alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 25 material properties with values for both materials. Properties with values for just one material (11, 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 AISI 384 stainless steel and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 150
63
Elastic (Young's, Tensile) Modulus, GPa 200
45
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
18
Tensile Strength: Ultimate (UTS), MPa 480
210

Thermal Properties

Latent Heat of Fusion, J/g 290
330
Maximum Temperature: Mechanical, °C 910
150
Melting Completion (Liquidus), °C 1420
640
Melting Onset (Solidus), °C 1380
540
Specific Heat Capacity, J/kg-K 480
970
Thermal Conductivity, W/m-K 16
110
Thermal Expansion, µm/m-K 16
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.2
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
130

Otherwise Unclassified Properties

Base Metal Price, % relative 20
18
Density, g/cm3 7.9
1.9
Embodied Carbon, kg CO2/kg material 3.7
24
Embodied Energy, MJ/kg 52
170
Embodied Water, L/kg 150
940

Common Calculations

Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
63
Strength to Weight: Axial, points 17
31
Strength to Weight: Bending, points 17
41
Thermal Diffusivity, mm2/s 4.3
59
Thermal Shock Resistance, points 11
12

Alloy Composition

Carbon (C), % 0 to 0.040
0
Chromium (Cr), % 15 to 17
0
Copper (Cu), % 0
0 to 0.1
Iron (Fe), % 60.9 to 68
0
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 0 to 2.0
0 to 0.15
Nickel (Ni), % 17 to 19
0 to 0.010
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0 to 1.0
0
Sulfur (S), % 0 to 0.030
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3