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EN 1.4986 Stainless Steel vs. EN-MC21210 Magnesium

EN 1.4986 stainless steel belongs to the iron alloys classification, while EN-MC21210 magnesium belongs to the magnesium 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 1.4986 stainless steel and the bottom bar is EN-MC21210 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
48
Elastic (Young's, Tensile) Modulus, GPa 200
44
Elongation at Break, % 18
14
Fatigue Strength, MPa 350
70
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 77
17
Shear Strength, MPa 460
110
Tensile Strength: Ultimate (UTS), MPa 750
190
Tensile Strength: Yield (Proof), MPa 560
90

Thermal Properties

Latent Heat of Fusion, J/g 290
350
Maximum Temperature: Mechanical, °C 940
100
Melting Completion (Liquidus), °C 1450
600
Melting Onset (Solidus), °C 1400
570
Specific Heat Capacity, J/kg-K 470
1000
Thermal Conductivity, W/m-K 15
120
Thermal Expansion, µm/m-K 17
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.3
24
Electrical Conductivity: Equal Weight (Specific), % IACS 2.6
130

Otherwise Unclassified Properties

Base Metal Price, % relative 25
12
Density, g/cm3 7.9
1.6
Embodied Carbon, kg CO2/kg material 4.8
24
Embodied Energy, MJ/kg 67
160
Embodied Water, L/kg 150
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
22
Resilience: Unit (Modulus of Resilience), kJ/m3 790
92
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 24
72
Strength to Weight: Axial, points 26
32
Strength to Weight: Bending, points 23
44
Thermal Diffusivity, mm2/s 4.0
76
Thermal Shock Resistance, points 16
11

Alloy Composition

Aluminum (Al), % 0
1.6 to 2.6
Boron (B), % 0.050 to 0.1
0
Carbon (C), % 0.040 to 0.1
0
Chromium (Cr), % 15.5 to 17.5
0
Copper (Cu), % 0
0 to 0.010
Iron (Fe), % 59.4 to 66.6
0 to 0.0050
Magnesium (Mg), % 0
96.3 to 98.3
Manganese (Mn), % 0 to 1.5
0.1 to 0.7
Molybdenum (Mo), % 1.6 to 2.0
0
Nickel (Ni), % 15.5 to 17.5
0 to 0.0020
Niobium (Nb), % 0.4 to 1.2
0
Phosphorus (P), % 0 to 0.045
0
Silicon (Si), % 0.3 to 0.6
0 to 0.1
Sulfur (S), % 0 to 0.030
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.010