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Grade 5 Titanium vs. ACI-ASTM CA28MWV Steel

Grade 5 titanium belongs to the titanium alloys classification, while ACI-ASTM CA28MWV steel belongs to the iron alloys. There are 30 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 5 titanium and the bottom bar is ACI-ASTM CA28MWV steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 8.6 to 11
11
Fatigue Strength, MPa 530 to 630
470
Poisson's Ratio 0.32
0.28
Reduction in Area, % 21 to 25
27
Shear Modulus, GPa 40
76
Tensile Strength: Ultimate (UTS), MPa 1000 to 1190
1080
Tensile Strength: Yield (Proof), MPa 910 to 1110
870

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Maximum Temperature: Mechanical, °C 330
740
Melting Completion (Liquidus), °C 1610
1470
Melting Onset (Solidus), °C 1650
1430
Specific Heat Capacity, J/kg-K 560
470
Thermal Conductivity, W/m-K 6.8
25
Thermal Expansion, µm/m-K 8.9
10

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
4.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
5.3

Otherwise Unclassified Properties

Base Metal Price, % relative 36
11
Density, g/cm3 4.4
7.9
Embodied Carbon, kg CO2/kg material 38
3.1
Embodied Energy, MJ/kg 610
44
Embodied Water, L/kg 200
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 110
110
Resilience: Unit (Modulus of Resilience), kJ/m3 3980 to 5880
1920
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 62 to 75
38
Strength to Weight: Bending, points 50 to 56
30
Thermal Diffusivity, mm2/s 2.7
6.6
Thermal Shock Resistance, points 76 to 91
40

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.080
0.2 to 0.28
Chromium (Cr), % 0
11 to 12.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
81.4 to 85.8
Manganese (Mn), % 0
0.5 to 1.0
Molybdenum (Mo), % 0
0.9 to 1.3
Nickel (Ni), % 0
0.5 to 1.0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 87.4 to 91
0
Tungsten (W), % 0
0.9 to 1.3
Vanadium (V), % 3.5 to 4.5
0.2 to 0.3
Yttrium (Y), % 0 to 0.0050
0
Residuals, % 0 to 0.4
0