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EN 1.4547 Stainless Steel vs. EN-MC65120 Magnesium

EN 1.4547 stainless steel belongs to the iron alloys classification, while EN-MC65120 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 1.4547 stainless steel and the bottom bar is EN-MC65120 magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 230
55
Elastic (Young's, Tensile) Modulus, GPa 200
45
Elongation at Break, % 39
3.1
Fatigue Strength, MPa 290
80
Poisson's Ratio 0.28
0.29
Shear Modulus, GPa 80
17
Shear Strength, MPa 510
92
Tensile Strength: Ultimate (UTS), MPa 750
160
Tensile Strength: Yield (Proof), MPa 340
110

Thermal Properties

Latent Heat of Fusion, J/g 300
330
Maximum Temperature: Mechanical, °C 1090
180
Melting Completion (Liquidus), °C 1470
590
Melting Onset (Solidus), °C 1420
520
Specific Heat Capacity, J/kg-K 460
970
Thermal Conductivity, W/m-K 14
100
Thermal Expansion, µm/m-K 17
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 2.0
25
Electrical Conductivity: Equal Weight (Specific), % IACS 2.3
120

Otherwise Unclassified Properties

Base Metal Price, % relative 28
25
Density, g/cm3 8.0
1.9
Embodied Carbon, kg CO2/kg material 5.6
25
Embodied Energy, MJ/kg 75
190
Embodied Water, L/kg 190
930

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 240
4.4
Resilience: Unit (Modulus of Resilience), kJ/m3 290
140
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 24
62
Strength to Weight: Axial, points 26
23
Strength to Weight: Bending, points 23
34
Thermal Diffusivity, mm2/s 3.8
56
Thermal Shock Resistance, points 16
9.8

Alloy Composition

Carbon (C), % 0 to 0.020
0
Chromium (Cr), % 19.5 to 20.5
0
Copper (Cu), % 0.5 to 1.0
0 to 0.030
Iron (Fe), % 51 to 56.3
0 to 0.010
Magnesium (Mg), % 0
91.8 to 95.1
Manganese (Mn), % 0 to 1.0
0 to 0.15
Molybdenum (Mo), % 6.0 to 7.0
0
Nickel (Ni), % 17.5 to 18.5
0 to 0.0050
Nitrogen (N), % 0.18 to 0.25
0
Phosphorus (P), % 0 to 0.030
0
Silicon (Si), % 0 to 0.7
0 to 0.010
Sulfur (S), % 0 to 0.010
0
Unspecified Rare Earths, % 0
2.5 to 4.0
Zinc (Zn), % 0
2.0 to 3.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.010