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Grade 38 Titanium vs. Zamak 7

Grade 38 titanium belongs to the titanium alloys classification, while Zamak 7 belongs to the zinc alloys. There are 30 material properties with values for both materials. Properties with values for just one material (5, in this case) are not shown.

For each property being compared, the top bar is grade 38 titanium and the bottom bar is Zamak 7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
86
Elongation at Break, % 11
13
Fatigue Strength, MPa 530
47
Poisson's Ratio 0.32
0.25
Shear Modulus, GPa 40
33
Shear Strength, MPa 600
210
Tensile Strength: Ultimate (UTS), MPa 1000
280
Tensile Strength: Yield (Proof), MPa 910
250

Thermal Properties

Latent Heat of Fusion, J/g 410
120
Maximum Temperature: Mechanical, °C 330
95
Melting Completion (Liquidus), °C 1620
390
Melting Onset (Solidus), °C 1570
380
Specific Heat Capacity, J/kg-K 550
410
Thermal Conductivity, W/m-K 8.0
110
Thermal Expansion, µm/m-K 9.3
27

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
27
Electrical Conductivity: Equal Weight (Specific), % IACS 2.4
38

Otherwise Unclassified Properties

Base Metal Price, % relative 36
11
Density, g/cm3 4.5
6.4
Embodied Carbon, kg CO2/kg material 35
3.0
Embodied Energy, MJ/kg 560
57
Embodied Water, L/kg 160
380

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
36
Resilience: Unit (Modulus of Resilience), kJ/m3 3840
370
Stiffness to Weight: Axial, points 13
7.5
Stiffness to Weight: Bending, points 35
23
Strength to Weight: Axial, points 62
12
Strength to Weight: Bending, points 49
15
Thermal Diffusivity, mm2/s 3.2
43
Thermal Shock Resistance, points 72
8.6

Alloy Composition


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Aluminum (Al), % 3.5 to 4.5
3.5 to 4.3
Cadmium (Cd), % 0
0 to 0.0020
Carbon (C), % 0 to 0.080
0
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 1.2 to 1.8
0 to 0.075
Lead (Pb), % 0
0 to 0.0030
Magnesium (Mg), % 0
0.0050 to 0.020
Nickel (Ni), % 0
0.0050 to 0.020
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0.2 to 0.3
0
Tin (Sn), % 0
0 to 0.0010
Titanium (Ti), % 89.9 to 93.1
0
Vanadium (V), % 2.0 to 3.0
0
Zinc (Zn), % 0
95.3 to 96.5
Residuals, % 0 to 0.4
0