Titanium 4-4-2 vs. ASTM B617 Coin Silver
Titanium 4-4-2 belongs to the titanium alloys classification, while ASTM B617 coin silver 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 titanium 4-4-2 and the bottom bar is ASTM B617 coin silver.
Metric UnitsUS Customary Units
Mechanical Properties
| Elastic (Young's, Tensile) Modulus, GPa | 110 | |
| 75 |
| Elongation at Break, % | 10 | |
| 1.1 to 22 |
| Poisson's Ratio | 0.32 | |
| 0.37 |
| Shear Modulus, GPa | 42 | |
| 28 |
| Shear Strength, MPa | 690 to 750 | |
| 180 to 290 |
| Tensile Strength: Ultimate (UTS), MPa | 1150 to 1250 | |
| 290 to 520 |
Thermal Properties
| Latent Heat of Fusion, J/g | 410 | |
| 120 |
| Melting Completion (Liquidus), °C | 1610 | |
| 870 |
| Melting Onset (Solidus), °C | 1560 | |
| 780 |
| Specific Heat Capacity, J/kg-K | 540 | |
| 250 |
| Thermal Expansion, µm/m-K | 8.6 | |
| 19 |
Otherwise Unclassified Properties
| Density, g/cm3 | 4.7 | |
| 10 |
Common Calculations
| Stiffness to Weight: Axial, points | 13 | |
| 4.1 |
| Stiffness to Weight: Bending, points | 34 | |
| 14 |
| Strength to Weight: Axial, points | 68 to 74 | |
| 7.7 to 14 |
| Strength to Weight: Bending, points | 52 to 55 | |
| 9.3 to 14 |
| Thermal Shock Resistance, points | 86 to 93 | |
| 14 to 25 |
Alloy Composition
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| Aluminum (Al), % | 3.0 to 5.0 | |
| 0 to 0.0050 |
| Cadmium (Cd), % | 0 | |
| 0 to 0.050 |
| Carbon (C), % | 0 to 0.080 | |
| 0 |
| Copper (Cu), % | 0 | |
| 9.0 to 10.4 |
| Hydrogen (H), % | 0 to 0.015 | |
| 0 |
| Iron (Fe), % | 0 to 0.2 | |
| 0 to 0.050 |
| Lead (Pb), % | 0 | |
| 0 to 0.030 |
| Molybdenum (Mo), % | 3.0 to 5.0 | |
| 0 |
| Nickel (Ni), % | 0 | |
| 0 to 0.010 |
| Nitrogen (N), % | 0 to 0.050 | |
| 0 |
| Oxygen (O), % | 0 to 0.25 | |
| 0 |
| Phosphorus (P), % | 0 | |
| 0 to 0.020 |
| Silicon (Si), % | 0.3 to 0.7 | |
| 0 |
| Silver (Ag), % | 0 | |
| 89.6 to 91 |
| Tin (Sn), % | 1.5 to 2.5 | |
| 0 |
| Titanium (Ti), % | 85.8 to 92.2 | |
| 0 |
| Zinc (Zn), % | 0 | |
| 0 to 0.060 |
| Residuals, % | 0 to 0.4 | |
| 0 to 0.060 |