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EN 1.4864 Stainless Steel vs. EN-MC21110 Magnesium

EN 1.4864 stainless steel belongs to the iron alloys classification, while EN-MC21110 magnesium belongs to the magnesium alloys. There are 31 material properties with values for both materials. Properties with values for just one material (2, 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 1.4864 stainless steel and the bottom bar is EN-MC21110 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 190
58 to 63
Elastic (Young's, Tensile) Modulus, GPa 190
46
Elongation at Break, % 33
2.8 to 6.7
Fatigue Strength, MPa 200
75 to 78
Poisson's Ratio 0.29
0.29
Shear Modulus, GPa 75
18
Shear Strength, MPa 430
120 to 160
Tensile Strength: Ultimate (UTS), MPa 650
200 to 270
Tensile Strength: Yield (Proof), MPa 260
100 to 120

Thermal Properties

Latent Heat of Fusion, J/g 310
350
Maximum Temperature: Mechanical, °C 1100
130
Melting Completion (Liquidus), °C 1390
600
Melting Onset (Solidus), °C 1340
500
Specific Heat Capacity, J/kg-K 480
990
Thermal Conductivity, W/m-K 13
80
Thermal Expansion, µm/m-K 14
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.7
12
Electrical Conductivity: Equal Weight (Specific), % IACS 1.9
61

Otherwise Unclassified Properties

Base Metal Price, % relative 30
12
Density, g/cm3 8.0
1.7
Embodied Carbon, kg CO2/kg material 5.3
23
Embodied Energy, MJ/kg 75
160
Embodied Water, L/kg 180
990

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 170
4.9 to 14
Resilience: Unit (Modulus of Resilience), kJ/m3 170
120 to 150
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 24
69
Strength to Weight: Axial, points 23
33 to 44
Strength to Weight: Bending, points 21
45 to 54
Thermal Diffusivity, mm2/s 3.3
47
Thermal Shock Resistance, points 17
12 to 16

Alloy Composition

Aluminum (Al), % 0
7.0 to 8.7
Carbon (C), % 0 to 0.15
0
Chromium (Cr), % 15 to 17
0
Copper (Cu), % 0
0 to 0.030
Iron (Fe), % 41.7 to 51
0 to 0.0050
Magnesium (Mg), % 0
89.6 to 92.6
Manganese (Mn), % 0 to 2.0
0.1 to 0.35
Nickel (Ni), % 33 to 37
0 to 0.0020
Nitrogen (N), % 0 to 0.1
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 1.0 to 2.0
0 to 0.2
Sulfur (S), % 0 to 0.015
0
Zinc (Zn), % 0
0.35 to 1.0
Residuals, % 0
0 to 0.010