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EN-MC35110 Magnesium vs. EN 1.4578 Stainless Steel

EN-MC35110 magnesium belongs to the magnesium alloys classification, while EN 1.4578 stainless steel belongs to the iron alloys. There are 31 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 EN 1.4578 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 63
190
Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 3.1
51
Fatigue Strength, MPa 110
200
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
77
Shear Strength, MPa 130
400
Tensile Strength: Ultimate (UTS), MPa 230
550
Tensile Strength: Yield (Proof), MPa 150
200

Thermal Properties

Latent Heat of Fusion, J/g 330
290
Maximum Temperature: Mechanical, °C 140
930
Melting Completion (Liquidus), °C 600
1430
Melting Onset (Solidus), °C 520
1390
Specific Heat Capacity, J/kg-K 970
470
Thermal Conductivity, W/m-K 110
14
Thermal Expansion, µm/m-K 26
16

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 130
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 18
19
Density, g/cm3 1.9
7.9
Embodied Carbon, kg CO2/kg material 24
3.7
Embodied Energy, MJ/kg 170
51
Embodied Water, L/kg 940
160

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
220
Resilience: Unit (Modulus of Resilience), kJ/m3 260
100
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
25
Strength to Weight: Axial, points 34
19
Strength to Weight: Bending, points 44
19
Thermal Diffusivity, mm2/s 61
3.9
Thermal Shock Resistance, points 14
12

Alloy Composition


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Carbon (C), % 0
0 to 0.040
Chromium (Cr), % 0
16.5 to 17.5
Copper (Cu), % 0 to 0.030
3.0 to 3.5
Iron (Fe), % 0 to 0.010
62.3 to 68.5
Magnesium (Mg), % 92 to 95.4
0
Manganese (Mn), % 0 to 0.15
0 to 2.0
Molybdenum (Mo), % 0
2.0 to 2.5
Nickel (Ni), % 0 to 0.0050
10 to 11
Nitrogen (N), % 0
0 to 0.1
Phosphorus (P), % 0
0 to 0.045
Silicon (Si), % 0 to 0.010
0 to 1.0
Sulfur (S), % 0
0 to 0.015
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