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ASTM B817 Type I vs. AWS BVAg-8

ASTM B817 type I belongs to the titanium alloys classification, while AWS BVAg-8 belongs to the otherwise unclassified metals. There are 15 material properties with values for both materials. Properties with values for just one material (16, 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 B817 type I and the bottom bar is AWS BVAg-8.

Metric UnitsUS Customary Units

Mechanical Properties

Elastic (Young's, Tensile) Modulus, GPa 100
84
Poisson's Ratio 0.32
0.36
Shear Modulus, GPa 40
31
Tensile Strength: Ultimate (UTS), MPa 770 to 960
170

Thermal Properties

Latent Heat of Fusion, J/g 410
140
Melting Completion (Liquidus), °C 1600
780
Melting Onset (Solidus), °C 1550
780
Specific Heat Capacity, J/kg-K 560
280
Thermal Expansion, µm/m-K 9.6
19

Otherwise Unclassified Properties

Density, g/cm3 4.4
10

Common Calculations

Stiffness to Weight: Axial, points 13
4.6
Stiffness to Weight: Bending, points 35
14
Strength to Weight: Axial, points 48 to 60
4.7
Strength to Weight: Bending, points 42 to 49
6.8
Thermal Shock Resistance, points 54 to 68
7.6

Alloy Composition

Aluminum (Al), % 5.5 to 6.8
0
Cadmium (Cd), % 0
0 to 0.0010
Carbon (C), % 0 to 0.1
0 to 0.0050
Chlorine (Cl), % 0 to 0.2
0
Copper (Cu), % 0
27 to 29
Hydrogen (H), % 0 to 0.015
0
Iron (Fe), % 0 to 0.4
0
Lead (Pb), % 0
0 to 0.0020
Nitrogen (N), % 0 to 0.040
0
Oxygen (O), % 0 to 0.3
0
Phosphorus (P), % 0
0 to 0.0020
Silicon (Si), % 0 to 0.1
0
Silver (Ag), % 0
71 to 73
Sodium (Na), % 0 to 0.2
0
Titanium (Ti), % 87 to 91
0
Vanadium (V), % 3.5 to 4.5
0
Zinc (Zn), % 0
0 to 0.0010
Residuals, % 0 to 0.4
0