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EN-MC95310 Magnesium vs. S45000 Stainless Steel

EN-MC95310 magnesium belongs to the magnesium alloys classification, while S45000 stainless steel belongs to the iron alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, 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-MC95310 magnesium and the bottom bar is S45000 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 85
280 to 410
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 2.2
6.8 to 14
Fatigue Strength, MPa 110
330 to 650
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
76
Shear Strength, MPa 160
590 to 830
Tensile Strength: Ultimate (UTS), MPa 280
980 to 1410
Tensile Strength: Yield (Proof), MPa 190
580 to 1310

Thermal Properties

Latent Heat of Fusion, J/g 330
280
Maximum Temperature: Mechanical, °C 170
840
Melting Completion (Liquidus), °C 650
1440
Melting Onset (Solidus), °C 540
1390
Specific Heat Capacity, J/kg-K 960
480
Thermal Conductivity, W/m-K 51
17
Thermal Expansion, µm/m-K 25
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 11
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 50
2.5

Otherwise Unclassified Properties

Base Metal Price, % relative 34
13
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 29
2.8
Embodied Energy, MJ/kg 260
39
Embodied Water, L/kg 900
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.6
94 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 420
850 to 4400
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 61
25
Strength to Weight: Axial, points 40
35 to 50
Strength to Weight: Bending, points 49
28 to 36
Thermal Diffusivity, mm2/s 28
4.5
Thermal Shock Resistance, points 18
33 to 47

Alloy Composition

Carbon (C), % 0
0 to 0.050
Chromium (Cr), % 0
14 to 16
Copper (Cu), % 0 to 0.030
1.3 to 1.8
Iron (Fe), % 0 to 0.010
72.1 to 79.3
Lithium (Li), % 0 to 0.2
0
Magnesium (Mg), % 88.9 to 93.4
0
Manganese (Mn), % 0 to 0.15
0 to 1.0
Molybdenum (Mo), % 0
0.5 to 1.0
Nickel (Ni), % 0 to 0.0050
5.0 to 7.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Unspecified Rare Earths, % 1.5 to 4.0
0
Yttrium (Y), % 4.8 to 5.5
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0