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Grade 6 Titanium vs. AWS ERTi-5

Both grade 6 titanium and AWS ERTi-5 are titanium alloys. They have a moderately high 95% of their average alloy composition in common. There are 29 material properties with values for both materials. Properties with values for just one material (2, in this case) are not shown.

For each property being compared, the top bar is grade 6 titanium and the bottom bar is AWS ERTi-5.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 11
10
Fatigue Strength, MPa 290
470
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 39
40
Tensile Strength: Ultimate (UTS), MPa 890
900
Tensile Strength: Yield (Proof), MPa 840
830

Thermal Properties

Latent Heat of Fusion, J/g 410
410
Maximum Temperature: Mechanical, °C 310
340
Melting Completion (Liquidus), °C 1580
1610
Melting Onset (Solidus), °C 1530
1560
Specific Heat Capacity, J/kg-K 550
560
Thermal Conductivity, W/m-K 7.8
7.1
Thermal Expansion, µm/m-K 9.4
9.6

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.2
1.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.5
2.0

Otherwise Unclassified Properties

Base Metal Price, % relative 36
36
Density, g/cm3 4.5
4.4
Embodied Carbon, kg CO2/kg material 30
38
Embodied Energy, MJ/kg 480
610
Embodied Water, L/kg 190
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 92
87
Resilience: Unit (Modulus of Resilience), kJ/m3 3390
3250
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 55
56
Strength to Weight: Bending, points 46
46
Thermal Diffusivity, mm2/s 3.2
2.9
Thermal Shock Resistance, points 65
63

Alloy Composition


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Aluminum (Al), % 4.0 to 6.0
5.5 to 6.8
Carbon (C), % 0 to 0.080
0 to 0.050
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.5
0 to 0.22
Nitrogen (N), % 0 to 0.030
0 to 0.030
Oxygen (O), % 0 to 0.2
0.12 to 0.2
Tin (Sn), % 2.0 to 3.0
0
Titanium (Ti), % 89.8 to 94
88.2 to 90.9
Vanadium (V), % 0
3.5 to 4.5
Residuals, % 0 to 0.4
0