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AWS ERTi-5 vs. Grade 33 Titanium

Both AWS ERTi-5 and grade 33 titanium are titanium alloys. They have 90% 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 AWS ERTi-5 and the bottom bar is grade 33 titanium.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
110
Elongation at Break, % 10
23
Fatigue Strength, MPa 470
250
Poisson's Ratio 0.32
0.32
Shear Modulus, GPa 40
41
Tensile Strength: Ultimate (UTS), MPa 900
390
Tensile Strength: Yield (Proof), MPa 830
350

Thermal Properties

Latent Heat of Fusion, J/g 410
420
Maximum Temperature: Mechanical, °C 340
320
Melting Completion (Liquidus), °C 1610
1660
Melting Onset (Solidus), °C 1560
1610
Specific Heat Capacity, J/kg-K 560
540
Thermal Conductivity, W/m-K 7.1
21
Thermal Expansion, µm/m-K 9.6
8.7

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
3.4
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
6.9

Otherwise Unclassified Properties

Base Metal Price, % relative 36
55
Density, g/cm3 4.4
4.5
Embodied Carbon, kg CO2/kg material 38
33
Embodied Energy, MJ/kg 610
530
Embodied Water, L/kg 200
200

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 87
86
Resilience: Unit (Modulus of Resilience), kJ/m3 3250
590
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
35
Strength to Weight: Axial, points 56
24
Strength to Weight: Bending, points 46
26
Thermal Diffusivity, mm2/s 2.9
8.7
Thermal Shock Resistance, points 63
30

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Carbon (C), % 0 to 0.050
0 to 0.080
Chromium (Cr), % 0
0.1 to 0.2
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.22
0 to 0.3
Nickel (Ni), % 0
0.35 to 0.55
Nitrogen (N), % 0 to 0.030
0 to 0.030
Oxygen (O), % 0.12 to 0.2
0 to 0.25
Palladium (Pd), % 0
0.010 to 0.020
Ruthenium (Ru), % 0
0.020 to 0.040
Titanium (Ti), % 88.2 to 90.9
98.1 to 99.52
Vanadium (V), % 3.5 to 4.5
0
Residuals, % 0
0 to 0.4