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EN-MC65120 Magnesium vs. ASTM B817 Type I

EN-MC65120 magnesium belongs to the magnesium alloys classification, while ASTM B817 type I belongs to the titanium alloys. There are 29 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-MC65120 magnesium and the bottom bar is ASTM B817 type I.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
100
Elongation at Break, % 3.1
4.0 to 13
Fatigue Strength, MPa 80
360 to 520
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 17
40
Tensile Strength: Ultimate (UTS), MPa 160
770 to 960
Tensile Strength: Yield (Proof), MPa 110
700 to 860

Thermal Properties

Latent Heat of Fusion, J/g 330
410
Maximum Temperature: Mechanical, °C 180
340
Melting Completion (Liquidus), °C 590
1600
Melting Onset (Solidus), °C 520
1550
Specific Heat Capacity, J/kg-K 970
560
Thermal Conductivity, W/m-K 100
7.1
Thermal Expansion, µm/m-K 26
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 25
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 120
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 25
36
Density, g/cm3 1.9
4.4
Embodied Carbon, kg CO2/kg material 25
38
Embodied Energy, MJ/kg 190
610
Embodied Water, L/kg 930
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4
30 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 140
2310 to 3540
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 62
35
Strength to Weight: Axial, points 23
48 to 60
Strength to Weight: Bending, points 34
42 to 49
Thermal Diffusivity, mm2/s 56
2.9
Thermal Shock Resistance, points 9.8
54 to 68

Alloy Composition


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Aluminum (Al), % 0
5.5 to 6.8
Carbon (C), % 0
0 to 0.1
Chlorine (Cl), % 0
0 to 0.2
Copper (Cu), % 0 to 0.030
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0 to 0.010
0 to 0.4
Magnesium (Mg), % 91.8 to 95.1
0
Manganese (Mn), % 0 to 0.15
0
Nickel (Ni), % 0 to 0.0050
0
Nitrogen (N), % 0
0 to 0.040
Oxygen (O), % 0
0 to 0.3
Silicon (Si), % 0 to 0.010
0 to 0.1
Sodium (Na), % 0
0 to 0.2
Titanium (Ti), % 0
87 to 91
Unspecified Rare Earths, % 2.5 to 4.0
0
Vanadium (V), % 0
3.5 to 4.5
Zinc (Zn), % 2.0 to 3.0
0
Zirconium (Zr), % 0.4 to 1.0
0
Residuals, % 0 to 0.010
0 to 0.4