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EN 1.4935 Stainless Steel vs. EN-MC21210 Magnesium

EN 1.4935 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 1.4935 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, % 16 to 18
14
Fatigue Strength, MPa 350 to 400
70
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 76
17
Shear Strength, MPa 480 to 540
110
Tensile Strength: Ultimate (UTS), MPa 780 to 880
190
Tensile Strength: Yield (Proof), MPa 570 to 670
90

Thermal Properties

Latent Heat of Fusion, J/g 270
350
Maximum Temperature: Mechanical, °C 740
100
Melting Completion (Liquidus), °C 1460
600
Melting Onset (Solidus), °C 1420
570
Specific Heat Capacity, J/kg-K 470
1000
Thermal Conductivity, W/m-K 24
120
Thermal Expansion, µm/m-K 11
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.9
24
Electrical Conductivity: Equal Weight (Specific), % IACS 3.3
130

Otherwise Unclassified Properties

Base Metal Price, % relative 9.0
12
Density, g/cm3 7.8
1.6
Embodied Carbon, kg CO2/kg material 2.9
24
Embodied Energy, MJ/kg 42
160
Embodied Water, L/kg 100
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 130
22
Resilience: Unit (Modulus of Resilience), kJ/m3 830 to 1160
92
Stiffness to Weight: Axial, points 14
15
Stiffness to Weight: Bending, points 25
72
Strength to Weight: Axial, points 28 to 31
32
Strength to Weight: Bending, points 24 to 26
44
Thermal Diffusivity, mm2/s 6.5
76
Thermal Shock Resistance, points 27 to 30
11

Alloy Composition

Aluminum (Al), % 0
1.6 to 2.6
Carbon (C), % 0.17 to 0.24
0
Chromium (Cr), % 11 to 12.5
0
Copper (Cu), % 0
0 to 0.010
Iron (Fe), % 83 to 86.7
0 to 0.0050
Magnesium (Mg), % 0
96.3 to 98.3
Manganese (Mn), % 0.3 to 0.8
0.1 to 0.7
Molybdenum (Mo), % 0.8 to 1.2
0
Nickel (Ni), % 0.3 to 0.8
0 to 0.0020
Phosphorus (P), % 0 to 0.025
0
Silicon (Si), % 0.1 to 0.5
0 to 0.1
Sulfur (S), % 0 to 0.015
0
Tungsten (W), % 0.4 to 0.6
0
Vanadium (V), % 0.2 to 0.35
0
Zinc (Zn), % 0
0 to 0.2
Residuals, % 0
0 to 0.010