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Grade Ti-Pd18 Titanium vs. ACI-ASTM CB7Cu-1 Steel

Grade Ti-Pd18 titanium belongs to the titanium alloys classification, while ACI-ASTM CB7Cu-1 steel belongs to the iron alloys. There are 28 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 Ti-Pd18 titanium and the bottom bar is ACI-ASTM CB7Cu-1 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Brinell Hardness 320
300 to 420
Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 17
5.7 to 11
Fatigue Strength, MPa 350
420 to 590
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
76
Tensile Strength: Ultimate (UTS), MPa 710
960 to 1350
Tensile Strength: Yield (Proof), MPa 540
760 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 410
280
Melting Completion (Liquidus), °C 1640
1430
Melting Onset (Solidus), °C 1590
1500
Specific Heat Capacity, J/kg-K 550
480
Thermal Conductivity, W/m-K 8.2
17
Thermal Expansion, µm/m-K 9.1
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.4
2.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.7
2.3

Otherwise Unclassified Properties

Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 41
2.6
Embodied Energy, MJ/kg 670
38
Embodied Water, L/kg 270
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 110
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 1380
1500 to 3590
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 44
34 to 48
Strength to Weight: Bending, points 39
28 to 35
Thermal Diffusivity, mm2/s 3.3
4.6
Thermal Shock Resistance, points 52
32 to 45

Alloy Composition

Aluminum (Al), % 2.5 to 3.5
0
Carbon (C), % 0 to 0.1
0 to 0.070
Chromium (Cr), % 0
15.5 to 17.7
Copper (Cu), % 0
2.5 to 3.2
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
72.3 to 78.4
Manganese (Mn), % 0
0 to 0.7
Nickel (Ni), % 0 to 0.050
3.6 to 4.6
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0 to 0.15
0
Palladium (Pd), % 0.040 to 0.080
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 92.5 to 95.5
0
Vanadium (V), % 2.0 to 3.0
0
Residuals, % 0 to 0.4
0