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EN 1.4911 Stainless Steel vs. EN-MC21210 Magnesium

EN 1.4911 stainless steel belongs to the iron alloys classification, while EN-MC21210 magnesium belongs to the magnesium 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 1.4911 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, % 11
14
Fatigue Strength, MPa 530
70
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
17
Shear Strength, MPa 640
110
Tensile Strength: Ultimate (UTS), MPa 1070
190
Tensile Strength: Yield (Proof), MPa 970
90

Thermal Properties

Latent Heat of Fusion, J/g 270
350
Maximum Temperature: Mechanical, °C 700
100
Melting Completion (Liquidus), °C 1450
600
Melting Onset (Solidus), °C 1410
570
Specific Heat Capacity, J/kg-K 470
1000
Thermal Conductivity, W/m-K 20
120
Thermal Expansion, µm/m-K 11
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.7
24
Electrical Conductivity: Equal Weight (Specific), % IACS 3.0
130

Otherwise Unclassified Properties

Base Metal Price, % relative 20
12
Density, g/cm3 7.9
1.6
Embodied Carbon, kg CO2/kg material 3.4
24
Embodied Energy, MJ/kg 49
160
Embodied Water, L/kg 130
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 120
22
Resilience: Unit (Modulus of Resilience), kJ/m3 2410
92
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
72
Strength to Weight: Axial, points 38
32
Strength to Weight: Bending, points 30
44
Thermal Diffusivity, mm2/s 5.4
76
Thermal Shock Resistance, points 37
11

Alloy Composition

Aluminum (Al), % 0
1.6 to 2.6
Boron (B), % 0.0050 to 0.015
0
Carbon (C), % 0.050 to 0.12
0
Chromium (Cr), % 9.8 to 11.2
0
Cobalt (Co), % 5.0 to 7.0
0
Copper (Cu), % 0
0 to 0.010
Iron (Fe), % 75.7 to 83.8
0 to 0.0050
Magnesium (Mg), % 0
96.3 to 98.3
Manganese (Mn), % 0.3 to 1.3
0.1 to 0.7
Molybdenum (Mo), % 0.5 to 1.0
0
Nickel (Ni), % 0.2 to 1.2
0 to 0.0020
Niobium (Nb), % 0.2 to 0.5
0
Nitrogen (N), % 0 to 0.035
0
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.1 to 0.8
0 to 0.1
Sulfur (S), % 0 to 0.015
0
Tungsten (W), % 0 to 0.7
0
Vanadium (V), % 0.1 to 0.4
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.010