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EN-MC65210 Magnesium vs. S44700 Stainless Steel

EN-MC65210 magnesium belongs to the magnesium alloys classification, while S44700 stainless steel belongs to the iron alloys. There are 25 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 EN-MC65210 magnesium and the bottom bar is S44700 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
200
Elastic (Young's, Tensile) Modulus, GPa 44
210
Elongation at Break, % 2.8
23
Fatigue Strength, MPa 110
300
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 17
82
Shear Strength, MPa 150
380
Tensile Strength: Ultimate (UTS), MPa 270
600
Tensile Strength: Yield (Proof), MPa 200
450

Thermal Properties

Latent Heat of Fusion, J/g 340
300
Maximum Temperature: Mechanical, °C 170
1100
Melting Completion (Liquidus), °C 610
1460
Melting Onset (Solidus), °C 540
1410
Specific Heat Capacity, J/kg-K 970
480
Thermal Expansion, µm/m-K 26
11

Otherwise Unclassified Properties

Density, g/cm3 2.0
7.8
Embodied Carbon, kg CO2/kg material 27
3.6
Embodied Energy, MJ/kg 220
49

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.9
120
Resilience: Unit (Modulus of Resilience), kJ/m3 450
480
Stiffness to Weight: Axial, points 12
15
Stiffness to Weight: Bending, points 59
25
Strength to Weight: Axial, points 38
21
Strength to Weight: Bending, points 47
20
Thermal Shock Resistance, points 17
19

Alloy Composition


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Carbon (C), % 0
0 to 0.010
Chromium (Cr), % 0
28 to 30
Copper (Cu), % 0 to 0.030
0 to 0.15
Iron (Fe), % 0 to 0.010
64.9 to 68.5
Magnesium (Mg), % 92.6 to 95.6
0
Manganese (Mn), % 0 to 0.15
0 to 0.3
Molybdenum (Mo), % 0
3.5 to 4.2
Nickel (Ni), % 0 to 0.0050
0 to 0.15
Nitrogen (N), % 0
0 to 0.020
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.010
0 to 0.2
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0 to 0.020
Unspecified Rare Earths, % 2.0 to 3.0
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0