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EN-MC65210 Magnesium vs. EN 1.4740 Stainless Steel

EN-MC65210 magnesium belongs to the magnesium alloys classification, while EN 1.4740 stainless steel belongs to the iron alloys. There are 20 material properties with values for both materials. Properties with values for just one material (13, 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 EN 1.4740 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
260
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.8
22
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 17
77

Thermal Properties

Latent Heat of Fusion, J/g 340
300
Maximum Temperature: Mechanical, °C 170
900
Melting Completion (Liquidus), °C 610
1420
Melting Onset (Solidus), °C 540
1370
Specific Heat Capacity, J/kg-K 970
490
Thermal Conductivity, W/m-K 110
18
Thermal Expansion, µm/m-K 26
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.2
Electrical Conductivity: Equal Weight (Specific), % IACS 110
2.6

Otherwise Unclassified Properties

Density, g/cm3 2.0
7.6
Embodied Carbon, kg CO2/kg material 27
2.3
Embodied Energy, MJ/kg 220
32

Common Calculations

Stiffness to Weight: Axial, points 12
14
Stiffness to Weight: Bending, points 59
25
Thermal Diffusivity, mm2/s 58
4.8

Alloy Composition


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Carbon (C), % 0
0.3 to 0.5
Chromium (Cr), % 0
16 to 19
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
75.4 to 82.7
Magnesium (Mg), % 92.6 to 95.6
0
Manganese (Mn), % 0 to 0.15
0 to 1.0
Molybdenum (Mo), % 0
0 to 0.5
Nickel (Ni), % 0 to 0.0050
0 to 1.0
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
1.0 to 2.5
Silver (Ag), % 2.0 to 3.0
0
Sulfur (S), % 0
0 to 0.030
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