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Grade 20 Titanium vs. ZA-8

Grade 20 titanium belongs to the titanium alloys classification, while ZA-8 belongs to the zinc alloys. There are 25 material properties with values for both materials. Properties with values for just one material (12, in this case) are not shown.

For each property being compared, the top bar is grade 20 titanium and the bottom bar is ZA-8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
85 to 86
Elongation at Break, % 5.7 to 17
1.3 to 8.0
Fatigue Strength, MPa 550 to 630
51 to 100
Poisson's Ratio 0.32
0.26
Shear Modulus, GPa 47
34
Shear Strength, MPa 560 to 740
240 to 280
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
210 to 370
Tensile Strength: Yield (Proof), MPa 850 to 1190
210 to 290

Thermal Properties

Latent Heat of Fusion, J/g 400
110
Maximum Temperature: Mechanical, °C 370
100
Melting Completion (Liquidus), °C 1660
400
Melting Onset (Solidus), °C 1600
380
Specific Heat Capacity, J/kg-K 520
440
Thermal Expansion, µm/m-K 9.6
23

Otherwise Unclassified Properties

Density, g/cm3 5.0
6.3
Embodied Carbon, kg CO2/kg material 52
3.3
Embodied Energy, MJ/kg 860
62
Embodied Water, L/kg 350
420

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
2.8 to 28
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
260 to 490
Stiffness to Weight: Axial, points 14
7.5
Stiffness to Weight: Bending, points 33
23
Strength to Weight: Axial, points 50 to 70
9.3 to 17
Strength to Weight: Bending, points 41 to 52
12 to 18
Thermal Shock Resistance, points 55 to 77
7.6 to 13

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
8.0 to 8.8
Cadmium (Cd), % 0
0 to 0.0060
Carbon (C), % 0 to 0.050
0
Chromium (Cr), % 5.5 to 6.5
0
Copper (Cu), % 0
0.8 to 1.3
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
0 to 0.075
Lead (Pb), % 0
0 to 0.0060
Magnesium (Mg), % 0
0.015 to 0.030
Molybdenum (Mo), % 3.5 to 4.5
0
Nickel (Ni), % 0
0 to 0.020
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.12
0
Palladium (Pd), % 0.040 to 0.080
0
Silicon (Si), % 0
0 to 0.045
Tin (Sn), % 0
0 to 0.0030
Titanium (Ti), % 71 to 77
0
Vanadium (V), % 7.5 to 8.5
0
Zinc (Zn), % 0
89.7 to 91.2
Zirconium (Zr), % 3.5 to 4.5
0
Residuals, % 0 to 0.4
0

Comparable Variants