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EN-MC35110 Magnesium vs. S35045 Stainless Steel

EN-MC35110 magnesium belongs to the magnesium alloys classification, while S35045 stainless steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, 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-MC35110 magnesium and the bottom bar is S35045 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 3.1
39
Fatigue Strength, MPa 110
170
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
78
Shear Strength, MPa 130
370
Tensile Strength: Ultimate (UTS), MPa 230
540
Tensile Strength: Yield (Proof), MPa 150
190

Thermal Properties

Latent Heat of Fusion, J/g 330
310
Maximum Temperature: Mechanical, °C 140
1100
Melting Completion (Liquidus), °C 600
1390
Melting Onset (Solidus), °C 520
1340
Specific Heat Capacity, J/kg-K 970
480
Thermal Conductivity, W/m-K 110
12
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
1.7
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 18
34
Density, g/cm3 1.9
8.0
Embodied Carbon, kg CO2/kg material 24
5.8
Embodied Energy, MJ/kg 170
83
Embodied Water, L/kg 940
230

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
170
Resilience: Unit (Modulus of Resilience), kJ/m3 260
94
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
24
Strength to Weight: Axial, points 34
19
Strength to Weight: Bending, points 44
19
Thermal Diffusivity, mm2/s 61
3.2
Thermal Shock Resistance, points 14
12

Alloy Composition


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Aluminum (Al), % 0
0.15 to 0.6
Carbon (C), % 0
0.060 to 0.1
Chromium (Cr), % 0
25 to 29
Copper (Cu), % 0 to 0.030
0 to 0.75
Iron (Fe), % 0 to 0.010
29.4 to 42.6
Magnesium (Mg), % 92 to 95.4
0
Manganese (Mn), % 0 to 0.15
0 to 1.5
Nickel (Ni), % 0 to 0.0050
32 to 37
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.010
0 to 1.0
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 0
0.15 to 0.6
Unspecified Rare Earths, % 0.75 to 1.8
0
Zinc (Zn), % 3.5 to 5.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0