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ASTM B817 Type I vs. Titanium 6-2-4-2

Both ASTM B817 type I and titanium 6-2-4-2 are titanium alloys. They have a moderately high 92% of their average alloy composition in common. There are 30 material properties with values for both materials. Properties with values for just one material (1, in this case) are not shown.

For each property being compared, the top bar is ASTM B817 type I and the bottom bar is titanium 6-2-4-2.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
110
Elongation at Break, % 4.0 to 13
8.6
Fatigue Strength, MPa 360 to 520
490
Poisson's Ratio 0.32
0.32
Reduction in Area, % 5.0 to 29
21
Shear Modulus, GPa 40
40
Tensile Strength: Ultimate (UTS), MPa 770 to 960
950
Tensile Strength: Yield (Proof), MPa 700 to 860
880

Thermal Properties

Latent Heat of Fusion, J/g 410
400
Maximum Temperature: Mechanical, °C 340
300
Melting Completion (Liquidus), °C 1600
1590
Melting Onset (Solidus), °C 1550
1540
Specific Heat Capacity, J/kg-K 560
540
Thermal Conductivity, W/m-K 7.1
6.9
Thermal Expansion, µm/m-K 9.6
9.5

Electrical Properties

Electrical Conductivity: Equal Volume, % IACS 1.0
0.9
Electrical Conductivity: Equal Weight (Specific), % IACS 2.0
1.8

Otherwise Unclassified Properties

Base Metal Price, % relative 36
42
Density, g/cm3 4.4
4.6
Embodied Carbon, kg CO2/kg material 38
32
Embodied Energy, MJ/kg 610
520
Embodied Water, L/kg 200
210

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 30 to 120
79
Resilience: Unit (Modulus of Resilience), kJ/m3 2310 to 3540
3640
Stiffness to Weight: Axial, points 13
13
Stiffness to Weight: Bending, points 35
34
Strength to Weight: Axial, points 48 to 60
57
Strength to Weight: Bending, points 42 to 49
46
Thermal Diffusivity, mm2/s 2.9
2.8
Thermal Shock Resistance, points 54 to 68
67

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
5.5 to 6.5
Carbon (C), % 0 to 0.1
0 to 0.050
Chlorine (Cl), % 0 to 0.2
0
Hydrogen (H), % 0 to 0.015
0 to 0.015
Iron (Fe), % 0 to 0.4
0 to 0.25
Molybdenum (Mo), % 0
1.8 to 2.2
Nitrogen (N), % 0 to 0.040
0 to 0.050
Oxygen (O), % 0 to 0.3
0 to 0.15
Silicon (Si), % 0 to 0.1
0.060 to 0.12
Sodium (Na), % 0 to 0.2
0
Tin (Sn), % 0
1.8 to 2.2
Titanium (Ti), % 87 to 91
83.7 to 87.2
Vanadium (V), % 3.5 to 4.5
0
Zirconium (Zr), % 0
3.6 to 4.4
Residuals, % 0
0 to 0.4