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Grade 20 Titanium vs. Chromium 33

Grade 20 titanium belongs to the titanium alloys classification, while chromium 33 belongs to the otherwise unclassified metals. There are 20 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade 20 titanium and the bottom bar is chromium 33.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
200
Elongation at Break, % 5.7 to 17
45
Poisson's Ratio 0.32
0.27
Shear Modulus, GPa 47
81
Tensile Strength: Ultimate (UTS), MPa 900 to 1270
850
Tensile Strength: Yield (Proof), MPa 850 to 1190
430

Thermal Properties

Latent Heat of Fusion, J/g 400
320
Specific Heat Capacity, J/kg-K 520
480
Thermal Expansion, µm/m-K 9.6
14

Otherwise Unclassified Properties

Density, g/cm3 5.0
7.9
Embodied Carbon, kg CO2/kg material 52
6.0
Embodied Energy, MJ/kg 860
84
Embodied Water, L/kg 350
250

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 71 to 150
320
Resilience: Unit (Modulus of Resilience), kJ/m3 2940 to 5760
450
Stiffness to Weight: Axial, points 14
14
Stiffness to Weight: Bending, points 33
25
Strength to Weight: Axial, points 50 to 70
30
Strength to Weight: Bending, points 41 to 52
25
Thermal Shock Resistance, points 55 to 77
21

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
0
Carbon (C), % 0 to 0.050
0 to 0.015
Chromium (Cr), % 5.5 to 6.5
31 to 35
Copper (Cu), % 0
0.3 to 1.2
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
25.7 to 37.9
Manganese (Mn), % 0
0 to 2.0
Molybdenum (Mo), % 3.5 to 4.5
0.5 to 2.0
Nickel (Ni), % 0
30 to 33
Nitrogen (N), % 0 to 0.030
0.35 to 0.6
Oxygen (O), % 0 to 0.12
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 0.5
Sulfur (S), % 0
0 to 0.010
Titanium (Ti), % 71 to 77
0
Vanadium (V), % 7.5 to 8.5
0
Zirconium (Zr), % 3.5 to 4.5
0
Residuals, % 0 to 0.4
0