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Grade 27 Titanium vs. AWS E3155

Grade 27 titanium belongs to the titanium alloys classification, while AWS E3155 belongs to the iron alloys. There are 22 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown.

For each property being compared, the top bar is grade 27 titanium and the bottom bar is AWS E3155.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
210
Elongation at Break, % 27
23
Poisson's Ratio 0.32
0.29
Shear Modulus, GPa 41
81
Tensile Strength: Ultimate (UTS), MPa 270
770

Thermal Properties

Latent Heat of Fusion, J/g 420
310
Melting Completion (Liquidus), °C 1660
1460
Melting Onset (Solidus), °C 1610
1410
Specific Heat Capacity, J/kg-K 540
450
Thermal Conductivity, W/m-K 21
13
Thermal Expansion, µm/m-K 8.7
13

Otherwise Unclassified Properties

Base Metal Price, % relative 37
70
Density, g/cm3 4.5
8.4
Embodied Carbon, kg CO2/kg material 33
7.7
Embodied Energy, MJ/kg 530
110
Embodied Water, L/kg 320
300

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
24
Strength to Weight: Axial, points 17
26
Strength to Weight: Bending, points 21
22
Thermal Diffusivity, mm2/s 8.8
3.3
Thermal Shock Resistance, points 21
20

Alloy Composition

Carbon (C), % 0 to 0.080
0 to 0.1
Chromium (Cr), % 0
20 to 22.5
Cobalt (Co), % 0
18.5 to 21
Copper (Cu), % 0
0 to 0.75
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.2
23.3 to 36.3
Manganese (Mn), % 0
1.0 to 2.5
Molybdenum (Mo), % 0
2.5 to 3.5
Nickel (Ni), % 0
19 to 21
Niobium (Nb), % 0
0.75 to 1.3
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
Tungsten (W), % 0
2.0 to 3.0
Residuals, % 0 to 0.4
0