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Grade 19 Titanium vs. EN 1.7720 Steel

Grade 19 titanium belongs to the titanium alloys classification, while EN 1.7720 steel belongs to the iron alloys. There are 27 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 19 titanium and the bottom bar is EN 1.7720 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 120
190
Elongation at Break, % 5.6 to 17
19
Fatigue Strength, MPa 550 to 620
230
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 47
73
Tensile Strength: Ultimate (UTS), MPa 890 to 1300
590
Tensile Strength: Yield (Proof), MPa 870 to 1170
340

Thermal Properties

Latent Heat of Fusion, J/g 400
250
Maximum Temperature: Mechanical, °C 370
410
Melting Completion (Liquidus), °C 1660
1470
Melting Onset (Solidus), °C 1600
1430
Specific Heat Capacity, J/kg-K 520
470
Thermal Conductivity, W/m-K 6.2
40
Thermal Expansion, µm/m-K 9.1
13

Otherwise Unclassified Properties

Base Metal Price, % relative 45
2.8
Density, g/cm3 5.0
7.9
Embodied Carbon, kg CO2/kg material 47
2.2
Embodied Energy, MJ/kg 760
30
Embodied Water, L/kg 230
51

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 70 to 150
97
Resilience: Unit (Modulus of Resilience), kJ/m3 3040 to 5530
300
Stiffness to Weight: Axial, points 14
13
Stiffness to Weight: Bending, points 33
24
Strength to Weight: Axial, points 49 to 72
21
Strength to Weight: Bending, points 41 to 53
20
Thermal Diffusivity, mm2/s 2.4
11
Thermal Shock Resistance, points 57 to 83
17

Alloy Composition

Aluminum (Al), % 3.0 to 4.0
0
Carbon (C), % 0 to 0.050
0.1 to 0.15
Chromium (Cr), % 5.5 to 6.5
0.3 to 0.5
Copper (Cu), % 0
0 to 0.3
Hydrogen (H), % 0 to 0.020
0
Iron (Fe), % 0 to 0.3
96.6 to 98.6
Manganese (Mn), % 0
0.4 to 0.7
Molybdenum (Mo), % 3.5 to 4.5
0.4 to 0.6
Nickel (Ni), % 0
0 to 0.4
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.12
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.45
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 71.1 to 77
0
Vanadium (V), % 7.5 to 8.5
0.22 to 0.3
Zirconium (Zr), % 3.5 to 4.5
0
Residuals, % 0 to 0.4
0