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Annealed Grade 29 Titanium vs. ASTM A387 Grade 9 Class 1

Annealed grade 29 titanium belongs to the titanium alloys classification, while ASTM A387 grade 9 class 1 belongs to the iron alloys. There are 30 material properties with values for both materials. Properties with values for just one material (3, in this case) are not shown.

For each property being compared, the top bar is annealed grade 29 titanium and the bottom bar is ASTM A387 grade 9 class 1.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 110
190
Elongation at Break, % 11
20
Fatigue Strength, MPa 510
160
Poisson's Ratio 0.32
0.28
Shear Modulus, GPa 40
75
Shear Strength, MPa 560
310
Tensile Strength: Ultimate (UTS), MPa 930
500
Tensile Strength: Yield (Proof), MPa 870
230

Thermal Properties

Latent Heat of Fusion, J/g 410
270
Maximum Temperature: Mechanical, °C 340
600
Melting Completion (Liquidus), °C 1610
1460
Melting Onset (Solidus), °C 1560
1410
Specific Heat Capacity, J/kg-K 560
470
Thermal Conductivity, W/m-K 7.3
26
Thermal Expansion, µm/m-K 9.3
13

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
9.0
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
10

Otherwise Unclassified Properties

Base Metal Price, % relative 36
6.5
Density, g/cm3 4.5
7.8
Embodied Carbon, kg CO2/kg material 39
2.1
Embodied Energy, MJ/kg 640
28
Embodied Water, L/kg 410
87

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 100
83
Resilience: Unit (Modulus of Resilience), kJ/m3 3540
140
Stiffness to Weight: Axial, points 13
14
Stiffness to Weight: Bending, points 35
25
Strength to Weight: Axial, points 58
18
Strength to Weight: Bending, points 47
18
Thermal Diffusivity, mm2/s 2.9
6.9
Thermal Shock Resistance, points 68
14

Alloy Composition

Aluminum (Al), % 5.5 to 6.5
0
Carbon (C), % 0 to 0.080
0 to 0.15
Chromium (Cr), % 0
8.0 to 10
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.25
87.1 to 90.8
Manganese (Mn), % 0
0.3 to 0.6
Molybdenum (Mo), % 0
0.9 to 1.1
Nitrogen (N), % 0 to 0.030
0
Oxygen (O), % 0 to 0.13
0
Phosphorus (P), % 0
0 to 0.025
Ruthenium (Ru), % 0.080 to 0.14
0
Silicon (Si), % 0
0 to 1.0
Sulfur (S), % 0
0 to 0.025
Titanium (Ti), % 88 to 90.9
0
Vanadium (V), % 3.5 to 4.5
0 to 0.040
Residuals, % 0 to 0.4
0