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ZE63A Magnesium vs. AISI 403 Stainless Steel

ZE63A magnesium belongs to the magnesium alloys classification, while AISI 403 stainless steel belongs to the iron alloys. There are 31 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 ZE63A magnesium and the bottom bar is AISI 403 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
190 to 240
Elastic (Young's, Tensile) Modulus, GPa 46
190
Elongation at Break, % 7.7
16 to 25
Fatigue Strength, MPa 120
200 to 340
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
76
Shear Strength, MPa 170
340 to 480
Tensile Strength: Ultimate (UTS), MPa 300
530 to 780
Tensile Strength: Yield (Proof), MPa 190
280 to 570

Thermal Properties

Latent Heat of Fusion, J/g 330
270
Maximum Temperature: Mechanical, °C 170
740
Melting Completion (Liquidus), °C 510
1450
Melting Onset (Solidus), °C 390
1400
Specific Heat Capacity, J/kg-K 950
480
Thermal Conductivity, W/m-K 110
28
Thermal Expansion, µm/m-K 27
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 31
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 140
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 22
6.5
Density, g/cm3 2.0
7.8
Embodied Carbon, kg CO2/kg material 24
1.9
Embodied Energy, MJ/kg 180
27
Embodied Water, L/kg 920
99

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
110 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 400
210 to 840
Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 58
25
Strength to Weight: Axial, points 40
19 to 28
Strength to Weight: Bending, points 48
19 to 24
Thermal Diffusivity, mm2/s 57
7.6
Thermal Shock Resistance, points 17
20 to 29

Alloy Composition

Carbon (C), % 0
0 to 0.15
Chromium (Cr), % 0
11.5 to 13
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0
84.7 to 88.5
Magnesium (Mg), % 89.6 to 92
0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0 to 0.010
0 to 0.6
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.030
Unspecified Rare Earths, % 2.1 to 3.0
0
Zinc (Zn), % 5.5 to 6.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.3
0