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Grade 32 Titanium vs. ACI-ASTM CB7Cu-2 Steel

Grade 32 titanium belongs to the titanium alloys classification, while ACI-ASTM CB7Cu-2 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 32 titanium and the bottom bar is ACI-ASTM CB7Cu-2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 11
5.7 to 11
Fatigue Strength, MPa 390
420 to 590
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
75
Tensile Strength: Ultimate (UTS), MPa 770
960 to 1350
Tensile Strength: Yield (Proof), MPa 670
760 to 1180

Thermal Properties

Latent Heat of Fusion, J/g 410
280
Melting Completion (Liquidus), °C 1610
1430
Melting Onset (Solidus), °C 1560
1380
Specific Heat Capacity, J/kg-K 550
480
Thermal Conductivity, W/m-K 7.5
17
Thermal Expansion, µm/m-K 8.2
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 2.1
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 38
13
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 32
2.6
Embodied Energy, MJ/kg 530
38
Embodied Water, L/kg 180
130

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 83
71 to 120
Resilience: Unit (Modulus of Resilience), kJ/m3 2100
1510 to 3600
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 47
34 to 48
Strength to Weight: Bending, points 41
28 to 35
Thermal Diffusivity, mm2/s 3.0
4.6
Thermal Shock Resistance, points 63
32 to 45

Alloy Composition

Aluminum (Al), % 4.5 to 5.5
0
Carbon (C), % 0 to 0.080
0 to 0.070
Chromium (Cr), % 0
14 to 15.5
Copper (Cu), % 0
2.5 to 3.2
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
73.6 to 79
Manganese (Mn), % 0
0 to 0.7
Molybdenum (Mo), % 0.6 to 1.2
0
Nickel (Ni), % 0
4.5 to 5.5
Niobium (Nb), % 0
0 to 0.35
Nitrogen (N), % 0 to 0.030
0 to 0.050
Oxygen (O), % 0 to 0.11
0
Phosphorus (P), % 0
0 to 0.035
Silicon (Si), % 0.060 to 0.14
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 0.6 to 1.4
0
Titanium (Ti), % 88.1 to 93
0
Vanadium (V), % 0.6 to 1.4
0
Zirconium (Zr), % 0.6 to 1.4
0
Residuals, % 0 to 0.4
0