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EN-MC65220 Magnesium vs. EN 1.4749 Stainless Steel

EN-MC65220 magnesium belongs to the magnesium alloys classification, while EN 1.4749 stainless steel belongs to the iron 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-MC65220 magnesium and the bottom bar is EN 1.4749 stainless steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 80
180
Elastic (Young's, Tensile) Modulus, GPa 44
200
Elongation at Break, % 2.2
16
Fatigue Strength, MPa 110
190
Poisson's Ratio 0.29
0.27
Shear Modulus, GPa 17
80
Shear Strength, MPa 150
370
Tensile Strength: Ultimate (UTS), MPa 270
600
Tensile Strength: Yield (Proof), MPa 200
320

Thermal Properties

Latent Heat of Fusion, J/g 340
300
Maximum Temperature: Mechanical, °C 160
1100
Melting Completion (Liquidus), °C 610
1420
Melting Onset (Solidus), °C 550
1380
Specific Heat Capacity, J/kg-K 980
490
Thermal Conductivity, W/m-K 110
17
Thermal Expansion, µm/m-K 26
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
2.5
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.9

Otherwise Unclassified Properties

Base Metal Price, % relative 80
13
Density, g/cm3 1.9
7.6
Embodied Carbon, kg CO2/kg material 27
2.5
Embodied Energy, MJ/kg 210
36

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 5.5
80
Resilience: Unit (Modulus of Resilience), kJ/m3 450
250
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 62
26
Strength to Weight: Axial, points 40
22
Strength to Weight: Bending, points 49
21
Thermal Diffusivity, mm2/s 61
4.6
Thermal Shock Resistance, points 17
22

Alloy Composition


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Carbon (C), % 0
0.15 to 0.2
Chromium (Cr), % 0
26 to 29
Copper (Cu), % 0.050 to 0.1
0
Iron (Fe), % 0 to 0.010
68.5 to 73.7
Magnesium (Mg), % 93.8 to 96.8
0
Manganese (Mn), % 0 to 0.15
0 to 1.0
Nickel (Ni), % 0 to 0.0050
0
Nitrogen (N), % 0
0.15 to 0.25
Phosphorus (P), % 0
0 to 0.040
Silicon (Si), % 0 to 0.010
0 to 1.0
Silver (Ag), % 1.3 to 1.7
0
Sulfur (S), % 0
0 to 0.015
Unspecified Rare Earths, % 1.5 to 3.0
0
Zinc (Zn), % 0 to 0.2
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0