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Grade 5 Titanium vs. ACI-ASTM CA6N Steel

Grade 5 titanium belongs to the titanium alloys classification, while ACI-ASTM CA6N steel belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (4, 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 CA6N steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 8.6 to 11
17
Fatigue Strength, MPa 530 to 630
640
Poisson's Ratio 0.32
0.28
Reduction in Area, % 21 to 25
57
Shear Modulus, GPa 40
75
Tensile Strength: Ultimate (UTS), MPa 1000 to 1190
1080
Tensile Strength: Yield (Proof), MPa 910 to 1110
1060

Thermal Properties

Latent Heat of Fusion, J/g 410
280
Maximum Temperature: Mechanical, °C 330
740
Melting Completion (Liquidus), °C 1610
1440
Melting Onset (Solidus), °C 1650
1400
Specific Heat Capacity, J/kg-K 560
480
Thermal Conductivity, W/m-K 6.8
23
Thermal Expansion, µm/m-K 8.9
9.9

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
2.6
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
3.0

Otherwise Unclassified Properties

Base Metal Price, % relative 36
11
Density, g/cm3 4.4
7.8
Embodied Carbon, kg CO2/kg material 38
2.5
Embodied Energy, MJ/kg 610
35
Embodied Water, L/kg 200
110

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100 to 110
180
Resilience: Unit (Modulus of Resilience), kJ/m3 3980 to 5880
2900
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
6.1
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 to 0.060
Chromium (Cr), % 0
10.5 to 12.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
77.9 to 83.5
Manganese (Mn), % 0
0 to 0.5
Nickel (Ni), % 0
6.0 to 8.0
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.020
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.020
Titanium (Ti), % 87.4 to 91
0
Vanadium (V), % 3.5 to 4.5
0
Yttrium (Y), % 0 to 0.0050
0
Residuals, % 0 to 0.4
0