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Grade 12 Titanium vs. ZE41A Magnesium

Grade 12 titanium belongs to the titanium alloys classification, while ZE41A magnesium belongs to the magnesium alloys. There are 31 material properties with values for both materials. Properties with values for just one material (4, 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 grade 12 titanium and the bottom bar is ZE41A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 170
63
Elastic (Young's, Tensile) Modulus, GPa 110
45
Elongation at Break, % 21
3.3
Fatigue Strength, MPa 280
98
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 39
18
Shear Strength, MPa 330
150
Tensile Strength: Ultimate (UTS), MPa 530
210
Tensile Strength: Yield (Proof), MPa 410
140

Thermal Properties

Latent Heat of Fusion, J/g 420
330
Maximum Temperature: Mechanical, °C 320
150
Melting Completion (Liquidus), °C 1660
640
Melting Onset (Solidus), °C 1610
540
Specific Heat Capacity, J/kg-K 540
970
Thermal Conductivity, W/m-K 21
110
Thermal Expansion, µm/m-K 9.6
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.3
27
Electrical Conductivity: Equal Weight (Specific), % IACS 6.6
130

Otherwise Unclassified Properties

Base Metal Price, % relative 37
18
Density, g/cm3 4.5
1.9
Embodied Carbon, kg CO2/kg material 31
24
Embodied Energy, MJ/kg 500
170
Embodied Water, L/kg 110
940

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
6.1
Resilience: Unit (Modulus of Resilience), kJ/m3 770
220
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
63
Strength to Weight: Axial, points 32
31
Strength to Weight: Bending, points 32
41
Thermal Diffusivity, mm2/s 8.5
59
Thermal Shock Resistance, points 37
12

Alloy Composition

Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0 to 0.1
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0
Magnesium (Mg), % 0
91.7 to 95.4
Manganese (Mn), % 0
0 to 0.15
Molybdenum (Mo), % 0.2 to 0.4
0
Nickel (Ni), % 0.6 to 0.9
0 to 0.010
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Titanium (Ti), % 97.6 to 99.2
0
Unspecified Rare Earths, % 0
0.75 to 1.8
Zinc (Zn), % 0
3.5 to 5.0
Zirconium (Zr), % 0
0.4 to 1.0
Residuals, % 0
0 to 0.3