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AWS ERTi-1 vs. Titanium 6-7

Both AWS ERTi-1 and titanium 6-7 are titanium alloys. They have 87% of their average alloy composition in common. There are 25 material properties with values for both materials. Properties with values for just one material (6, in this case) are not shown.

For each property being compared, the top bar is AWS ERTi-1 and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
120
Elongation at Break, % 24
11
Fatigue Strength, MPa 120
530
Poisson's Ratio 0.32
0.33
Shear Modulus, GPa 41
45
Tensile Strength: Ultimate (UTS), MPa 240
1020
Tensile Strength: Yield (Proof), MPa 170
900

Thermal Properties

Latent Heat of Fusion, J/g 420
410
Maximum Temperature: Mechanical, °C 320
300
Melting Completion (Liquidus), °C 1670
1700
Melting Onset (Solidus), °C 1620
1650
Specific Heat Capacity, J/kg-K 540
520
Thermal Expansion, µm/m-K 8.7
9.3

Otherwise Unclassified Properties

Base Metal Price, % relative 37
75
Density, g/cm3 4.5
5.1
Embodied Carbon, kg CO2/kg material 31
34
Embodied Energy, MJ/kg 510
540
Embodied Water, L/kg 110
190

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 52
110
Resilience: Unit (Modulus of Resilience), kJ/m3 140
3460
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
32
Strength to Weight: Axial, points 15
56
Strength to Weight: Bending, points 19
44
Thermal Shock Resistance, points 19
66

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0 to 0.030
0 to 0.080
Hydrogen (H), % 0 to 0.0050
0 to 0.0090
Iron (Fe), % 0 to 0.080
0 to 0.25
Molybdenum (Mo), % 0
6.5 to 7.5
Niobium (Nb), % 0
6.5 to 7.5
Nitrogen (N), % 0 to 0.012
0 to 0.050
Oxygen (O), % 0.030 to 0.1
0 to 0.2
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 99.773 to 99.97
84.9 to 88