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Grade 2 Titanium vs. AWS ERNi-1

Grade 2 titanium belongs to the titanium alloys classification, while AWS ERNi-1 belongs to the nickel alloys. There are 24 material properties with values for both materials. Properties with values for just one material (9, in this case) are not shown.

For each property being compared, the top bar is grade 2 titanium and the bottom bar is AWS ERNi-1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
180
Elongation at Break, % 23
22
Poisson's Ratio 0.32
0.31
Shear Modulus, GPa 38
69
Tensile Strength: Ultimate (UTS), MPa 420
470

Thermal Properties

Latent Heat of Fusion, J/g 420
300
Melting Completion (Liquidus), °C 1660
1360
Melting Onset (Solidus), °C 1610
1310
Specific Heat Capacity, J/kg-K 540
450
Thermal Conductivity, W/m-K 22
73
Thermal Expansion, µm/m-K 9.0
11

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 3.6
19
Electrical Conductivity: Equal Weight (Specific), % IACS 7.2
19

Otherwise Unclassified Properties

Base Metal Price, % relative 37
60
Density, g/cm3 4.5
8.7
Embodied Carbon, kg CO2/kg material 31
11
Embodied Energy, MJ/kg 510
150
Embodied Water, L/kg 110
230

Common Calculations

Stiffness to Weight: Axial, points 13
12
Stiffness to Weight: Bending, points 35
22
Strength to Weight: Axial, points 26
15
Strength to Weight: Bending, points 28
15
Thermal Diffusivity, mm2/s 8.9
19
Thermal Shock Resistance, points 32
17

Alloy Composition

Aluminum (Al), % 0
0 to 1.5
Carbon (C), % 0 to 0.080
0 to 0.15
Copper (Cu), % 0
0 to 0.25
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.3
0 to 1.0
Manganese (Mn), % 0
0 to 1.0
Nickel (Ni), % 0
93 to 98
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.25
0
Phosphorus (P), % 0
0 to 0.030
Silicon (Si), % 0
0 to 0.75
Sulfur (S), % 0
0 to 0.015
Titanium (Ti), % 98.9 to 100
2.0 to 3.5
Residuals, % 0
0 to 0.5