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

Both titanium 6-2-4-2 and ASTM B817 type I 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 titanium 6-2-4-2 and the bottom bar is ASTM B817 type I.

Metric UnitsUS Customary Units

Mechanical Properties

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

Thermal Properties

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

Electrical Properties

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

Otherwise Unclassified Properties

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

Common Calculations

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

Alloy Composition

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