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Grade 5 Titanium vs. M1A Magnesium

Grade 5 titanium belongs to the titanium alloys classification, while M1A magnesium belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (2, 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 5 titanium and the bottom bar is M1A magnesium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
45
Elongation at Break, % 8.6 to 11
5.5
Fatigue Strength, MPa 530 to 630
88
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
18
Shear Strength, MPa 600 to 710
120
Tensile Strength: Ultimate (UTS), MPa 1000 to 1190
230
Tensile Strength: Yield (Proof), MPa 910 to 1110
130

Thermal Properties

Latent Heat of Fusion, J/g 410
350
Maximum Temperature: Mechanical, °C 330
95
Melting Completion (Liquidus), °C 1610
610
Melting Onset (Solidus), °C 1650
580
Specific Heat Capacity, J/kg-K 560
990
Thermal Conductivity, W/m-K 6.8
150
Thermal Expansion, µm/m-K 8.9
26

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
35
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
190

Otherwise Unclassified Properties

Base Metal Price, % relative 36
12
Density, g/cm3 4.4
1.7
Embodied Carbon, kg CO2/kg material 38
24
Embodied Energy, MJ/kg 610
160
Embodied Water, L/kg 200
970

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 110
11
Resilience: Unit (Modulus of Resilience), kJ/m3 3980 to 5880
180
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
71
Strength to Weight: Axial, points 62 to 75
38
Strength to Weight: Bending, points 50 to 56
49
Thermal Diffusivity, mm2/s 2.7
88
Thermal Shock Resistance, points 76 to 91
13

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Calcium (Ca), % 0
0 to 0.3
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0 to 0.050
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0
Magnesium (Mg), % 0
97.2 to 98.8
Manganese (Mn), % 0
1.2 to 2.0
Nickel (Ni), % 0
0 to 0.010
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Silicon (Si), % 0
0 to 0.1
Titanium (Ti), % 87.4 to 91
0
Vanadium (V), % 3.5 to 4.5
0
Yttrium (Y), % 0 to 0.0050
0
Residuals, % 0
0 to 0.3