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Grade 15 Titanium vs. AWS ERNiCu-7

Grade 15 titanium belongs to the titanium alloys classification, while AWS ERNiCu-7 belongs to the nickel alloys. There are 24 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 15 titanium and the bottom bar is AWS ERNiCu-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
160
Elongation at Break, % 20
34
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 41
61
Tensile Strength: Ultimate (UTS), MPa 540
550

Thermal Properties

Latent Heat of Fusion, J/g 420
280
Melting Completion (Liquidus), °C 1660
1280
Melting Onset (Solidus), °C 1610
1240
Specific Heat Capacity, J/kg-K 540
440
Thermal Conductivity, W/m-K 21
20
Thermal Expansion, µm/m-K 8.7
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.4
3.2
Electrical Conductivity: Equal Weight (Specific), % IACS 6.7
3.3

Otherwise Unclassified Properties

Base Metal Price, % relative 37
50
Density, g/cm3 4.5
8.7
Embodied Carbon, kg CO2/kg material 32
8.5
Embodied Energy, MJ/kg 520
120
Embodied Water, L/kg 210
250

Common Calculations

Stiffness to Weight: Axial, points 13
10
Stiffness to Weight: Bending, points 35
21
Strength to Weight: Axial, points 33
18
Strength to Weight: Bending, points 33
17
Thermal Diffusivity, mm2/s 8.4
5.3
Thermal Shock Resistance, points 41
19

Alloy Composition

Aluminum (Al), % 0
0 to 1.3
Carbon (C), % 0 to 0.080
0 to 0.15
Copper (Cu), % 0
18.3 to 36.5
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0 to 2.5
Manganese (Mn), % 0
0 to 4.0
Nickel (Ni), % 0.4 to 0.6
62 to 69
Nitrogen (N), % 0 to 0.050
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.030
Ruthenium (Ru), % 0.040 to 0.060
0
Silicon (Si), % 0
0 to 1.3
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 98.2 to 99.56
1.5 to 3.0
Residuals, % 0
0 to 0.5