ASTM B685 Alloy vs. 295.0 Aluminum
ASTM B685 alloy belongs to the otherwise unclassified metals classification, while 295.0 aluminum belongs to the aluminum alloys. There are 17 material properties with values for both materials. Properties with values for just one material (15, 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 B685 alloy and the bottom bar is 295.0 aluminum.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 120 | |
| 71 |
| Poisson's Ratio | 0.37 | |
| 0.33 |
| Shear Modulus, GPa | 43 | |
| 27 |
| Tensile Strength: Ultimate (UTS), MPa | 660 to 1060 | |
| 230 to 280 |
Thermal Properties
| Latent Heat of Fusion, J/g | 180 | |
| 400 |
| Melting Completion (Liquidus), °C | 1230 | |
| 640 |
| Melting Onset (Solidus), °C | 1200 | |
| 530 |
| Specific Heat Capacity, J/kg-K | 300 | |
| 880 |
| Thermal Expansion, µm/m-K | 14 | |
| 23 |
Electrical Properties
| Electrical Conductivity: Equal Volume, % IACS | 5.0 | |
| 35 |
| Electrical Conductivity: Equal Weight (Specific), % IACS | 4.1 | |
| 100 |
Otherwise Unclassified Properties
| Density, g/cm3 | 11 | |
| 3.0 |
Common Calculations
| Stiffness to Weight: Axial, points | 6.1 | |
| 13 |
| Stiffness to Weight: Bending, points | 15 | |
| 46 |
| Strength to Weight: Axial, points | 17 to 27 | |
| 21 to 26 |
| Strength to Weight: Bending, points | 16 to 21 | |
| 27 to 32 |
| Thermal Shock Resistance, points | 28 to 46 | |
| 9.8 to 12 |
Alloy Composition
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| Aluminum (Al), % | 0 to 0.0050 | |
| 91.4 to 95.3 |
| Cadmium (Cd), % | 0 to 0.050 | |
| 0 |
| Copper (Cu), % | 39.5 to 40.5 | |
| 4.0 to 5.0 |
| Iron (Fe), % | 0 to 0.050 | |
| 0 to 1.0 |
| Lead (Pb), % | 0 to 0.030 | |
| 0 |
| Magnesium (Mg), % | 0 | |
| 0 to 0.030 |
| Manganese (Mn), % | 0 | |
| 0 to 0.35 |
| Palladium (Pd), % | 59 to 60.5 | |
| 0 |
| Silicon (Si), % | 0 | |
| 0.7 to 1.5 |
| Silver (Ag), % | 0 to 0.1 | |
| 0 |
| Titanium (Ti), % | 0 | |
| 0 to 0.25 |
| Zinc (Zn), % | 0 to 0.060 | |
| 0 to 0.35 |
| Residuals, % | 0 to 0.2 | |
| 0 to 0.15 |