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Grade 26 Titanium vs. SAE-AISI D5 Steel

Grade 26 titanium belongs to the titanium alloys classification, while SAE-AISI D5 steel belongs to the iron alloys. There are 25 material properties with values for both materials. Properties with values for just one material (7, in this case) are not shown.

For each property being compared, the top bar is grade 26 titanium and the bottom bar is SAE-AISI D5 steel.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 23
5.4 to 14
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
75
Shear Strength, MPa 250
470 to 1180
Tensile Strength: Ultimate (UTS), MPa 390
770 to 2030

Thermal Properties

Latent Heat of Fusion, J/g 420
270
Melting Completion (Liquidus), °C 1660
1430
Melting Onset (Solidus), °C 1610
1390
Specific Heat Capacity, J/kg-K 540
480
Thermal Conductivity, W/m-K 21
27
Thermal Expansion, µm/m-K 9.2
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
4.2
Electrical Conductivity: Equal Weight (Specific), % IACS 6.9
4.9

Otherwise Unclassified Properties

Base Metal Price, % relative 37
13
Density, g/cm3 4.5
7.7
Embodied Carbon, kg CO2/kg material 33
3.5
Embodied Energy, MJ/kg 530
51
Embodied Water, L/kg 320
120

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 24
28 to 73
Strength to Weight: Bending, points 26
24 to 46
Thermal Diffusivity, mm2/s 8.6
7.4
Thermal Shock Resistance, points 28
26 to 67

Alloy Composition

Carbon (C), % 0 to 0.080
1.4 to 1.6
Chromium (Cr), % 0
11 to 13
Cobalt (Co), % 0
2.5 to 3.5
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
77.9 to 84.4
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 0.25
0
Phosphorus (P), % 0
0 to 0.030
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0 to 0.6
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 98.8 to 99.92
0
Vanadium (V), % 0
0 to 1.0
Residuals, % 0 to 0.4
0