ASTM B817 Type I vs. AWS BAg-7
ASTM B817 type I belongs to the titanium alloys classification, while AWS BAg-7 belongs to the otherwise unclassified metals. There are 17 material properties with values for both materials. Properties with values for just one material (14, 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 BAg-7.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 100 | |
| 83 |
| Poisson's Ratio | 0.32 | |
| 0.34 |
| Shear Modulus, GPa | 40 | |
| 31 |
| Tensile Strength: Ultimate (UTS), MPa | 770 to 960 | |
| 150 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 130 |
| Melting Completion (Liquidus), °C | 1600 | |
| 650 |
| Melting Onset (Solidus), °C | 1550 | |
| 620 |
| Specific Heat Capacity, J/kg-K | 560 | |
| 290 |
| Thermal Expansion, µm/m-K | 9.6 | |
| 20 |
Otherwise Unclassified Properties
| Density, g/cm3 | 4.4 | |
| 9.3 |
| Embodied Carbon, kg CO2/kg material | 38 | |
| 55 |
| Embodied Energy, MJ/kg | 610 | |
| 860 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 4.9 |
| Stiffness to Weight: Bending, points | 35 | |
| 16 |
| Strength to Weight: Axial, points | 48 to 60 | |
| 4.5 |
| Strength to Weight: Bending, points | 42 to 49 | |
| 6.7 |
| Thermal Shock Resistance, points | 54 to 68 | |
| 6.4 |
Alloy Composition
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| Aluminum (Al), % | 5.5 to 6.8 | |
| 0 |
| Carbon (C), % | 0 to 0.1 | |
| 0 |
| Chlorine (Cl), % | 0 to 0.2 | |
| 0 |
| Copper (Cu), % | 0 | |
| 21 to 23 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.4 | |
| 0 |
| Nitrogen (N), % | 0 to 0.040 | |
| 0 |
| Oxygen (O), % | 0 to 0.3 | |
| 0 |
| Silicon (Si), % | 0 to 0.1 | |
| 0 |
| Silver (Ag), % | 0 | |
| 55 to 57 |
| Sodium (Na), % | 0 to 0.2 | |
| 0 |
| Tin (Sn), % | 0 | |
| 4.5 to 5.5 |
| Titanium (Ti), % | 87 to 91 | |
| 0 |
| Vanadium (V), % | 3.5 to 4.5 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 15 to 19 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.15 |