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ASTM B522 Class II vs. Titanium 6-7

ASTM B522 class II belongs to the otherwise unclassified metals classification, while titanium 6-7 belongs to the titanium alloys. There are 20 material properties with values for both materials. Properties with values for just one material (10, in this case) are not shown. Please note that the two materials have significantly dissimilar densities. This means that additional care is required when interpreting the data, because some material properties are based on units of mass, while others are based on units of area or volume.

For each property being compared, the top bar is ASTM B522 class II and the bottom bar is titanium 6-7.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 96
120
Elongation at Break, % 1.1 to 28
11
Poisson's Ratio 0.41
0.33
Shear Modulus, GPa 34
45
Shear Strength, MPa 180 to 280
610
Tensile Strength: Ultimate (UTS), MPa 280 to 490
1020
Tensile Strength: Yield (Proof), MPa 120 to 210
900

Thermal Properties

Latent Heat of Fusion, J/g 77
410
Melting Completion (Liquidus), °C 1030
1700
Melting Onset (Solidus), °C 1030
1650
Specific Heat Capacity, J/kg-K 160
520
Thermal Expansion, µm/m-K 15
9.3

Otherwise Unclassified Properties

Density, g/cm3 17
5.1

Common Calculations

Resilience: Ultimate (Unit Rupture Work), MJ/m3 4.4 to 63
110
Resilience: Unit (Modulus of Resilience), kJ/m3 75 to 230
3460
Stiffness to Weight: Axial, points 3.1
13
Stiffness to Weight: Bending, points 8.9
32
Strength to Weight: Axial, points 4.4 to 7.8
56
Strength to Weight: Bending, points 5.5 to 8.0
44
Thermal Shock Resistance, points 13 to 24
66

Alloy Composition

Aluminum (Al), % 0
5.5 to 6.5
Carbon (C), % 0
0 to 0.080
Gold (Au), % 68.5 to 69.5
0
Hydrogen (H), % 0
0 to 0.0090
Iron (Fe), % 0
0 to 0.25
Molybdenum (Mo), % 0
6.5 to 7.5
Niobium (Nb), % 0
6.5 to 7.5
Nitrogen (N), % 0
0 to 0.050
Oxygen (O), % 0
0 to 0.2
Platinum (Pt), % 5.5 to 6.5
0
Silver (Ag), % 24.5 to 25.5
0
Sulfur (S), % 0 to 0.010
0
Tantalum (Ta), % 0
0 to 0.5
Titanium (Ti), % 0
84.9 to 88
Residuals, % 0 to 0.26
0