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Annealed Grade 9 Titanium vs. ISO-WD21150-O

Annealed grade 9 titanium belongs to the titanium alloys classification, while ISO-WD21150-O belongs to the magnesium alloys. There are 30 material properties with values for both materials. Properties with values for just one material (1, 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 annealed grade 9 titanium and the bottom bar is ISO-WD21150-O.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
45
Elongation at Break, % 17
11
Fatigue Strength, MPa 350
120
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 40
17
Shear Strength, MPa 430
150
Tensile Strength: Ultimate (UTS), MPa 700
240
Tensile Strength: Yield (Proof), MPa 550
120

Thermal Properties

Latent Heat of Fusion, J/g 410
350
Maximum Temperature: Mechanical, °C 330
110
Melting Completion (Liquidus), °C 1640
600
Melting Onset (Solidus), °C 1590
550
Specific Heat Capacity, J/kg-K 550
990
Thermal Conductivity, W/m-K 8.1
100
Thermal Expansion, µm/m-K 9.1
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
19
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
100

Otherwise Unclassified Properties

Base Metal Price, % relative 37
12
Density, g/cm3 4.5
1.7
Embodied Carbon, kg CO2/kg material 36
23
Embodied Energy, MJ/kg 580
160
Embodied Water, L/kg 150
980

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
23
Resilience: Unit (Modulus of Resilience), kJ/m3 1410
160
Stiffness to Weight: Axial, points 13
15
Stiffness to Weight: Bending, points 35
70
Strength to Weight: Axial, points 43
40
Strength to Weight: Bending, points 39
52
Thermal Diffusivity, mm2/s 3.3
60
Thermal Shock Resistance, points 52
15

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
2.4 to 3.6
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 0.25
0 to 0.0050
Magnesium (Mg), % 0
94 to 97
Manganese (Mn), % 0
0.15 to 0.4
Nickel (Ni), % 0
0 to 0.0050
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.15
0
Silicon (Si), % 0
0 to 0.1
Titanium (Ti), % 92.6 to 95.5
0
Vanadium (V), % 2.0 to 3.0
0
Zinc (Zn), % 0
0.5 to 1.5
Residuals, % 0
0 to 0.3