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ZK51A Magnesium vs. Grade 1 Titanium

ZK51A magnesium belongs to the magnesium alloys classification, while grade 1 titanium belongs to the titanium 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 ZK51A magnesium and the bottom bar is grade 1 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 45
110
Elongation at Break, % 4.7
28
Fatigue Strength, MPa 62
170
Poisson's Ratio 0.29
0.32
Shear Modulus, GPa 18
39
Shear Strength, MPa 160
200
Tensile Strength: Ultimate (UTS), MPa 240
310
Tensile Strength: Yield (Proof), MPa 150
220

Thermal Properties

Latent Heat of Fusion, J/g 340
420
Maximum Temperature: Mechanical, °C 120
320
Melting Completion (Liquidus), °C 640
1660
Melting Onset (Solidus), °C 550
1610
Specific Heat Capacity, J/kg-K 970
540
Thermal Conductivity, W/m-K 110
20
Thermal Expansion, µm/m-K 26
8.8

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 28
3.7
Electrical Conductivity: Equal Weight (Specific), % IACS 140
7.3

Otherwise Unclassified Properties

Base Metal Price, % relative 13
37
Density, g/cm3 1.8
4.5
Embodied Carbon, kg CO2/kg material 24
31
Embodied Energy, MJ/kg 160
510
Embodied Water, L/kg 940
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 10
79
Resilience: Unit (Modulus of Resilience), kJ/m3 260
230
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 64
35
Strength to Weight: Axial, points 36
19
Strength to Weight: Bending, points 47
23
Thermal Diffusivity, mm2/s 61
8.2
Thermal Shock Resistance, points 15
24

Alloy Composition

Carbon (C), % 0
0 to 0.080
Copper (Cu), % 0 to 0.1
0
Hydrogen (H), % 0
0 to 0.015
Iron (Fe), % 0
0 to 0.2
Magnesium (Mg), % 93.1 to 95.9
0
Nickel (Ni), % 0 to 0.010
0
Nitrogen (N), % 0
0 to 0.030
Oxygen (O), % 0
0 to 0.18
Titanium (Ti), % 0
99.095 to 100
Zinc (Zn), % 3.6 to 5.5
0
Zirconium (Zr), % 0.5 to 1.0
0
Residuals, % 0
0 to 0.4