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Grade 6 Titanium vs. SAE-AISI D2 Steel

Grade 6 titanium belongs to the titanium alloys classification, while SAE-AISI D2 steel belongs to the iron alloys. There are 29 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is grade 6 titanium and the bottom bar is SAE-AISI D2 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
190
Elongation at Break, % 11
5.0 to 16
Fatigue Strength, MPa 290
310 to 860
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 39
75
Shear Strength, MPa 530
460 to 1160
Tensile Strength: Ultimate (UTS), MPa 890
760 to 2000
Tensile Strength: Yield (Proof), MPa 840
470 to 1510

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Melting Completion (Liquidus), °C 1580
1440
Melting Onset (Solidus), °C 1530
1390
Specific Heat Capacity, J/kg-K 550
480
Thermal Conductivity, W/m-K 7.8
31
Thermal Expansion, µm/m-K 9.4
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
4.3
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
5.1

Otherwise Unclassified Properties

Base Metal Price, % relative 36
8.0
Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 30
3.4
Embodied Energy, MJ/kg 480
50
Embodied Water, L/kg 190
100

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
92 to 100
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
570 to 5940
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 55
27 to 72
Strength to Weight: Bending, points 46
24 to 46
Thermal Diffusivity, mm2/s 3.2
8.3
Thermal Shock Resistance, points 65
25 to 67

Alloy Composition

Aluminum (Al), % 4.0 to 6.0
0
Carbon (C), % 0 to 0.080
1.4 to 1.6
Chromium (Cr), % 0
11 to 13
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.5
81.3 to 86.9
Manganese (Mn), % 0
0 to 0.6
Molybdenum (Mo), % 0
0.7 to 1.2
Nickel (Ni), % 0
0 to 0.3
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.2
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
0
Vanadium (V), % 0
0 to 1.1
Residuals, % 0 to 0.4
0