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Grade 27 Titanium vs. AWS E349

Grade 27 titanium belongs to the titanium alloys classification, while AWS E349 belongs to the iron alloys. There are 24 material properties with values for both materials. Properties with values for just one material (8, in this case) are not shown.

For each property being compared, the top bar is grade 27 titanium and the bottom bar is AWS E349.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
200
Elongation at Break, % 27
29
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
78
Tensile Strength: Ultimate (UTS), MPa 270
770

Thermal Properties

Latent Heat of Fusion, J/g 420
290
Melting Completion (Liquidus), °C 1660
1470
Melting Onset (Solidus), °C 1610
1420
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 21
15
Thermal Expansion, µm/m-K 8.7
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
2.1
Electrical Conductivity: Equal Weight (Specific), % IACS 7.1
2.4

Otherwise Unclassified Properties

Base Metal Price, % relative 37
25
Density, g/cm3 4.5
7.9
Embodied Carbon, kg CO2/kg material 33
4.9
Embodied Energy, MJ/kg 530
72
Embodied Water, L/kg 320
150

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 17
27
Strength to Weight: Bending, points 21
24
Thermal Diffusivity, mm2/s 8.8
4.1
Thermal Shock Resistance, points 21
20

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.13
Chromium (Cr), % 0
18 to 21
Copper (Cu), % 0
0 to 0.75
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
60.5 to 71.1
Manganese (Mn), % 0
0.5 to 2.5
Molybdenum (Mo), % 0
0.35 to 0.65
Nickel (Ni), % 0
8.0 to 10
Niobium (Nb), % 0
0.75 to 1.2
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.18
0
Phosphorus (P), % 0
0 to 0.040
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 99 to 99.92
0 to 0.15
Tungsten (W), % 0
1.3 to 1.8
Vanadium (V), % 0
0.1 to 0.3
Residuals, % 0 to 0.4
0