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EN-MC35110 Magnesium vs. EN 1.4938 Stainless Steel

EN-MC35110 magnesium belongs to the magnesium alloys classification, while EN 1.4938 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 EN 1.4938 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
200
Elongation at Break, % 3.1
16 to 17
Fatigue Strength, MPa 110
390 to 520
Poisson's Ratio 0.29
0.28
Shear Modulus, GPa 18
76
Shear Strength, MPa 130
540 to 630
Tensile Strength: Ultimate (UTS), MPa 230
870 to 1030
Tensile Strength: Yield (Proof), MPa 150
640 to 870

Thermal Properties

Latent Heat of Fusion, J/g 330
270
Maximum Temperature: Mechanical, °C 140
750
Melting Completion (Liquidus), °C 600
1460
Melting Onset (Solidus), °C 520
1420
Specific Heat Capacity, J/kg-K 970
470
Thermal Conductivity, W/m-K 110
30
Thermal Expansion, µm/m-K 26
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 27
2.9
Electrical Conductivity: Equal Weight (Specific), % IACS 130
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 18
10
Density, g/cm3 1.9
7.8
Embodied Carbon, kg CO2/kg material 24
3.3
Embodied Energy, MJ/kg 170
47
Embodied Water, L/kg 940
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 6.3
140 to 160
Resilience: Unit (Modulus of Resilience), kJ/m3 260
1050 to 1920
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 63
25
Strength to Weight: Axial, points 34
31 to 37
Strength to Weight: Bending, points 44
26 to 29
Thermal Diffusivity, mm2/s 61
8.1
Thermal Shock Resistance, points 14
30 to 35

Alloy Composition


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Carbon (C), % 0
0.080 to 0.15
Chromium (Cr), % 0
11 to 12.5
Copper (Cu), % 0 to 0.030
0
Iron (Fe), % 0 to 0.010
80.5 to 84.8
Magnesium (Mg), % 92 to 95.4
0
Manganese (Mn), % 0 to 0.15
0.4 to 0.9
Molybdenum (Mo), % 0
1.5 to 2.0
Nickel (Ni), % 0 to 0.0050
2.0 to 3.0
Nitrogen (N), % 0
0.020 to 0.040
Phosphorus (P), % 0
0 to 0.025
Silicon (Si), % 0 to 0.010
0 to 0.5
Sulfur (S), % 0
0 to 0.015
Unspecified Rare Earths, % 0.75 to 1.8
0
Vanadium (V), % 0
0.25 to 0.4
Zinc (Zn), % 3.5 to 5.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0