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ZE63A Magnesium vs. S44735 Stainless Steel

ZE63A magnesium belongs to the magnesium alloys classification, while S44735 stainless steel belongs to the iron alloys. There are 27 material properties with values for both materials. Properties with values for just one material (10, 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 S44735 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 73
220
Elastic (Young's, Tensile) Modulus, GPa 46
210
Elongation at Break, % 7.7
21
Fatigue Strength, MPa 120
300
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 17
82
Shear Strength, MPa 170
390
Tensile Strength: Ultimate (UTS), MPa 300
630
Tensile Strength: Yield (Proof), MPa 190
460

Thermal Properties

Latent Heat of Fusion, J/g 330
310
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 510
1460
Melting Onset (Solidus), °C 390
1420
Specific Heat Capacity, J/kg-K 950
480
Thermal Expansion, µm/m-K 27
11

Otherwise Unclassified Properties

Base Metal Price, % relative 22
21
Density, g/cm3 2.0
7.7
Embodied Carbon, kg CO2/kg material 24
4.4
Embodied Energy, MJ/kg 180
61
Embodied Water, L/kg 920
180

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 20
120
Resilience: Unit (Modulus of Resilience), kJ/m3 400
520
Stiffness to Weight: Axial, points 12
15
Stiffness to Weight: Bending, points 58
26
Strength to Weight: Axial, points 40
23
Strength to Weight: Bending, points 48
21
Thermal Shock Resistance, points 17
20

Alloy Composition

Carbon (C), % 0
0 to 0.030
Chromium (Cr), % 0
28 to 30
Copper (Cu), % 0 to 0.1
0
Iron (Fe), % 0
60.7 to 68.4
Magnesium (Mg), % 89.6 to 92
0
Manganese (Mn), % 0
0 to 1.0
Molybdenum (Mo), % 0
3.6 to 4.2
Nickel (Ni), % 0 to 0.010
0 to 1.0
Niobium (Nb), % 0
0.2 to 1.0
Nitrogen (N), % 0
0 to 0.045
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 0
0.2 to 1.0
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