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Grade 15 Titanium vs. AWS E630

Grade 15 titanium belongs to the titanium alloys classification, while AWS E630 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 15 titanium and the bottom bar is AWS E630.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 20
8.0
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 41
76
Tensile Strength: Ultimate (UTS), MPa 540
1040

Thermal Properties

Latent Heat of Fusion, J/g 420
280
Melting Completion (Liquidus), °C 1660
1430
Melting Onset (Solidus), °C 1610
1380
Specific Heat Capacity, J/kg-K 540
470
Thermal Conductivity, W/m-K 21
17
Thermal Expansion, µm/m-K 8.7
14

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
2.3
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
2.6

Otherwise Unclassified Properties

Base Metal Price, % relative 37
14
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 32
2.8
Embodied Energy, MJ/kg 520
40
Embodied Water, L/kg 210
140

Common Calculations

Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 33
37
Strength to Weight: Bending, points 33
29
Thermal Diffusivity, mm2/s 8.4
4.5
Thermal Shock Resistance, points 41
28

Alloy Composition


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Carbon (C), % 0 to 0.080
0 to 0.050
Chromium (Cr), % 0
16 to 16.8
Copper (Cu), % 0
3.3 to 4.0
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
71.6 to 75.9
Manganese (Mn), % 0
0.25 to 0.75
Molybdenum (Mo), % 0
0 to 0.75
Nickel (Ni), % 0.4 to 0.6
4.5 to 5.0
Niobium (Nb), % 0
0.15 to 0.3
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.040
Ruthenium (Ru), % 0.040 to 0.060
0
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.030
Titanium (Ti), % 98.2 to 99.56
0
Residuals, % 0 to 0.4
0