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EN 1.4347 Stainless Steel vs. EN-MC21210 Magnesium

EN 1.4347 stainless steel belongs to the iron alloys classification, while EN-MC21210 magnesium belongs to the magnesium alloys. There are 29 material properties with values for both materials. Properties with values for just one material (5, 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 1.4347 stainless steel and the bottom bar is EN-MC21210 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 200
44
Elongation at Break, % 23
14
Fatigue Strength, MPa 320
70
Poisson's Ratio 0.27
0.29
Shear Modulus, GPa 79
17
Tensile Strength: Ultimate (UTS), MPa 660
190
Tensile Strength: Yield (Proof), MPa 480
90

Thermal Properties

Latent Heat of Fusion, J/g 300
350
Maximum Temperature: Mechanical, °C 1100
100
Melting Completion (Liquidus), °C 1410
600
Melting Onset (Solidus), °C 1370
570
Specific Heat Capacity, J/kg-K 490
1000
Thermal Conductivity, W/m-K 15
120
Thermal Expansion, µm/m-K 13
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.1
24
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
130

Otherwise Unclassified Properties

Base Metal Price, % relative 16
12
Density, g/cm3 7.7
1.6
Embodied Carbon, kg CO2/kg material 3.1
24
Embodied Energy, MJ/kg 44
160
Embodied Water, L/kg 170
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 140
22
Resilience: Unit (Modulus of Resilience), kJ/m3 570
92
Stiffness to Weight: Axial, points 15
15
Stiffness to Weight: Bending, points 25
72
Strength to Weight: Axial, points 24
32
Strength to Weight: Bending, points 22
44
Thermal Diffusivity, mm2/s 4.0
76
Thermal Shock Resistance, points 19
11

Alloy Composition

Aluminum (Al), % 0
1.6 to 2.6
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 25 to 27
0
Copper (Cu), % 0
0 to 0.010
Iron (Fe), % 62.2 to 69.4
0 to 0.0050
Magnesium (Mg), % 0
96.3 to 98.3
Manganese (Mn), % 0 to 1.5
0.1 to 0.7
Nickel (Ni), % 5.5 to 7.5
0 to 0.0020
Nitrogen (N), % 0.1 to 0.2
0
Phosphorus (P), % 0 to 0.035
0
Silicon (Si), % 0 to 1.5
0 to 0.1
Sulfur (S), % 0 to 0.020
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.010